diff --git a/builder/gen-dockerfile/src/Builder/GenFilesCommand.php b/builder/gen-dockerfile/src/Builder/GenFilesCommand.php
index d3409186..cc9fddf1 100644
--- a/builder/gen-dockerfile/src/Builder/GenFilesCommand.php
+++ b/builder/gen-dockerfile/src/Builder/GenFilesCommand.php
@@ -57,6 +57,12 @@ protected function configure()
         $this
             ->setName('create')
             ->setDescription('Create Dockerfile and .dockerignore file')
+            ->addOption(
+                'php74-image',
+                null,
+                InputOption::VALUE_REQUIRED,
+                'The PHP 74 base image of the Dockerfile'
+            )
             ->addOption(
                 'php73-image',
                 null,
@@ -111,17 +117,17 @@ protected function initialize(InputInterface $input, OutputInterface $output)
             $output->writeln("<info>
 There is no PHP runtime version specified in composer.json, or
 we don't support the version you specified. Google App Engine
-uses the latest 7.3.x version.
+uses the latest 7.4.x version.
 We recommend pinning your PHP version by running:
 
-composer require php 7.3.* (replace it with your desired minor version)
+composer require php 7.4.* (replace it with your desired minor version)
 
-Using PHP version 7.3.x...</info>
+Using PHP version 7.4.x...</info>
 ");
         } elseif ($version === DetectPhpVersion::EXACT_VERSION_SPECIFIED) {
             throw new ExactVersionException(
                 "An exact PHP version was specified in composer.json. Please pin your" .
-                "PHP version to a minor version such as '7.3.*'."
+                "PHP version to a minor version such as '7.4.*'."
             );
         }
         if (substr($version, 0, 3) === '5.6') {
@@ -132,8 +138,10 @@ protected function initialize(InputInterface $input, OutputInterface $output)
             $this->detectedPhpVersion = '7.1';
         } elseif (substr($version, 0, 3) === '7.2') {
             $this->detectedPhpVersion = '7.2';
-        } else {
+        } elseif (substr($version, 0, 3) === '7.3') {
             $this->detectedPhpVersion = '7.3';
+        } else {
+            $this->detectedPhpVersion = '7.4';
         }
         $yamlPath = getenv('GAE_APPLICATION_YAML_PATH')
             ?: self::DEFAULT_YAML_PATH;
diff --git a/builder/gen-dockerfile/src/DetectPhpVersion.php b/builder/gen-dockerfile/src/DetectPhpVersion.php
index bf4abae1..dc782906 100644
--- a/builder/gen-dockerfile/src/DetectPhpVersion.php
+++ b/builder/gen-dockerfile/src/DetectPhpVersion.php
@@ -98,6 +98,7 @@ public static function isExactVersion($constraint)
     private static function detectAvailableVersions()
     {
         return [
+            trim(file_get_contents('/opt/php74_version')),
             trim(file_get_contents('/opt/php73_version')),
             trim(file_get_contents('/opt/php72_version')),
             trim(file_get_contents('/opt/php71_version')),
diff --git a/builder/gen-dockerfile/tests/GenFilesCommandTest.php b/builder/gen-dockerfile/tests/GenFilesCommandTest.php
index b3df20a7..576379fb 100644
--- a/builder/gen-dockerfile/tests/GenFilesCommandTest.php
+++ b/builder/gen-dockerfile/tests/GenFilesCommandTest.php
@@ -79,6 +79,7 @@ public function testGenFilesCommand(
                     '--php71-image' => 'gcr.io/google-appengine/php71:latest',
                     '--php72-image' => 'gcr.io/google-appengine/php72:latest',
                     '--php73-image' => 'gcr.io/google-appengine/php73:latest',
+                    '--php74-image' => 'gcr.io/google-appengine/php74:latest',
                 ];
         }
         if ($expectedException !== null) {
@@ -131,10 +132,10 @@ public function dataProvider()
                 '',
                 '/app',
                 'added by the php runtime builder',
-                'gcr.io/google-appengine/php73:latest',
+                'gcr.io/google-appengine/php74:latest',
                 ["COMPOSER_FLAGS='--no-dev --prefer-dist' \\\n",
                  "FRONT_CONTROLLER_FILE='index.php' \\\n",
-                 "DETECTED_PHP_VERSION='7.3' \n"
+                 "DETECTED_PHP_VERSION='7.4' \n"
                 ]
             ],
             [
@@ -144,11 +145,11 @@ public function dataProvider()
                 '',
                 '/app',
                 'added by the php runtime builder',
-                'gcr.io/google-appengine/php73:latest',
+                'gcr.io/google-appengine/php74:latest',
                 ["COMPOSER_FLAGS='--no-dev --prefer-dist' \\\n",
                  "FRONT_CONTROLLER_FILE='index.php' \\\n",
                  "SKIP_LOCKDOWN_DOCUMENT_ROOT='true' \\\n",
-                 "DETECTED_PHP_VERSION='7.3' \n"
+                 "DETECTED_PHP_VERSION='7.4' \n"
                 ]
             ],
             [
@@ -169,10 +170,10 @@ public function dataProvider()
                 '',
                 '/app',
                 'added by the php runtime builder',
-                'gcr.io/google-appengine/php73:latest',
+                'gcr.io/google-appengine/php74:latest',
                 ["COMPOSER_FLAGS='--prefer-dist --no-dev --no-script' \\\n",
                  "FRONT_CONTROLLER_FILE='index.php' \\\n",
-                 "DETECTED_PHP_VERSION='7.3' \n"
+                 "DETECTED_PHP_VERSION='7.4' \n"
                 ]
             ],
             [
@@ -212,6 +213,19 @@ public function dataProvider()
                  "DETECTED_PHP_VERSION='7.3' \n"
                 ]
             ],
+            [
+                // PHP 7.4
+                __DIR__ . '/test_data/php74',
+                null,
+                '',
+                '/app',
+                'added by the php runtime builder',
+                'gcr.io/google-appengine/php74:latest',
+                ["COMPOSER_FLAGS='--no-dev --prefer-dist' \\\n",
+                    "FRONT_CONTROLLER_FILE='index.php' \\\n",
+                    "DETECTED_PHP_VERSION='7.4' \n"
+                ]
+            ],
             [
                 // values on env_variables
                 __DIR__ . '/test_data/values_only_on_env',
@@ -219,7 +233,7 @@ public function dataProvider()
                 '',
                 '/app',
                 'added by the php runtime builder',
-                'gcr.io/google-appengine/php73:latest',
+                'gcr.io/google-appengine/php74:latest',
                 [
                     "WHITELIST_FUNCTIONS='exec' \\\n",
                     "FRONT_CONTROLLER_FILE='app.php'",
@@ -239,7 +253,7 @@ public function dataProvider()
                 '',
                 '/app',
                 'added by the php runtime builder',
-                'gcr.io/google-appengine/php73:latest',
+                'gcr.io/google-appengine/php74:latest',
                 [],
                 '\\Google\\Cloud\\Runtimes\\Builder\\Exception\\MissingDocumentRootException'
             ],
@@ -250,7 +264,7 @@ public function dataProvider()
                 '',
                 '/app',
                 'added by the php runtime builder',
-                'gcr.io/google-appengine/php73:latest',
+                'gcr.io/google-appengine/php74:latest',
                 [
                     "WHITELIST_FUNCTIONS='exec' \\\n",
                     "FRONT_CONTROLLER_FILE='app.php'",
@@ -271,7 +285,7 @@ public function dataProvider()
                 '',
                 '/app',
                 'added by the php runtime builder',
-                'gcr.io/google-appengine/php73:latest',
+                'gcr.io/google-appengine/php74:latest',
                 ["FRONT_CONTROLLER_FILE='app.php' \\\n"]
             ],
             [
@@ -281,7 +295,7 @@ public function dataProvider()
                 'my.yaml',
                 '/app',
                 'added by the php runtime builder',
-                'gcr.io/google-appengine/php73:latest'
+                'gcr.io/google-appengine/php74:latest'
             ],
             [
                 // Overrides baseImage
@@ -292,11 +306,12 @@ public function dataProvider()
                     '--php71-image' => 'gcr.io/php-mvm-a-28051/php71:latest',
                     '--php72-image' => 'gcr.io/php-mvm-a-28051/php72:latest',
                     '--php73-image' => 'gcr.io/php-mvm-a-28051/php73:latest',
+                    '--php74-image' => 'gcr.io/php-mvm-a-28051/php74:latest',
                 ],
                 '',
                 '/app',
                 'added by the php runtime builder',
-                'gcr.io/php-mvm-a-28051/php73:latest'
+                'gcr.io/php-mvm-a-28051/php74:latest'
             ],
             [
                 // Has document_root set
@@ -305,7 +320,7 @@ public function dataProvider()
                 '',
                 '/app/web',
                 'added by the php runtime builder',
-                'gcr.io/google-appengine/php73:latest'
+                'gcr.io/google-appengine/php74:latest'
             ],
             [
                 // Has document_root set in env_variables
@@ -314,7 +329,7 @@ public function dataProvider()
                 '',
                 '/app/web',
                 'added by the php runtime builder',
-                'gcr.io/google-appengine/php73:latest'
+                'gcr.io/google-appengine/php74:latest'
             ],
             [
                 // document_root in both will throw exception
@@ -323,7 +338,7 @@ public function dataProvider()
                 '',
                 '/app/web',
                 'added by the php runtime builder',
-                'gcr.io/google-appengine/php73:latest',
+                'gcr.io/google-appengine/php74:latest',
                 [],
                 '\\Google\\Cloud\\Runtimes\\Builder\\Exception\\EnvConflictException'
             ],
@@ -343,7 +358,7 @@ public function dataProvider()
                 '',
                 '/app',
                 'added by the php runtime builder',
-                'gcr.io/google-appengine/php73:latest',
+                'gcr.io/google-appengine/php74:latest',
                 [],
                 '\\Google\\Cloud\\Runtimes\\Builder\\Exception\\ExactVersionException'
             ]
diff --git a/builder/gen-dockerfile/tests/test_data/php74/app.yaml b/builder/gen-dockerfile/tests/test_data/php74/app.yaml
new file mode 100644
index 00000000..2359f78c
--- /dev/null
+++ b/builder/gen-dockerfile/tests/test_data/php74/app.yaml
@@ -0,0 +1,5 @@
+env: flex
+runtime: php
+
+runtime_config:
+  document_root: /app
diff --git a/builder/gen-dockerfile/tests/test_data/php74/composer.json b/builder/gen-dockerfile/tests/test_data/php74/composer.json
new file mode 100644
index 00000000..3a5b11f1
--- /dev/null
+++ b/builder/gen-dockerfile/tests/test_data/php74/composer.json
@@ -0,0 +1,5 @@
+{
+    "require": {
+        "php": "7.4.*"
+    }
+}
diff --git a/builder/php-latest.yaml b/builder/php-latest.yaml
index 4f946b36..e015ece7 100644
--- a/builder/php-latest.yaml
+++ b/builder/php-latest.yaml
@@ -1,6 +1,6 @@
 steps:
   - name: 'gcr.io/gcp-runtimes/php/gen-dockerfile:latest'
-    args: ['--php73-image', 'gcr.io/google-appengine/php73:latest', '--php72-image', 'gcr.io/google-appengine/php72:latest', '--php71-image', 'gcr.io/google-appengine/php71:latest', '--php70-image', 'gcr.io/google-appengine/php70:latest', '--php56-image', 'gcr.io/google-appengine/php56:latest']
+    args: ['--php74-image', 'gcr.io/google-appengine/php74:latest', '--php73-image', 'gcr.io/google-appengine/php73:latest', '--php72-image', 'gcr.io/google-appengine/php72:latest', '--php71-image', 'gcr.io/google-appengine/php71:latest', '--php70-image', 'gcr.io/google-appengine/php70:latest', '--php56-image', 'gcr.io/google-appengine/php56:latest']
     env: 'GAE_APPLICATION_YAML_PATH=$_GAE_APPLICATION_YAML_PATH'
   - name: 'gcr.io/kaniko-project/executor:v0.6.0'
     args: ['--destination=$_OUTPUT_IMAGE']
diff --git a/check-versions/tests/VersionTest.php b/check-versions/tests/VersionTest.php
index 2021c30a..7d6bd116 100644
--- a/check-versions/tests/VersionTest.php
+++ b/check-versions/tests/VersionTest.php
@@ -45,6 +45,14 @@ public static function setUpBeforeClass()
                 'Failed to detect the latest PHP73 version';
         }
 
+        $pattern = '/PHP (7\.4\.\d+)/';
+        if (preg_match($pattern, $body, $matches)) {
+            self::$versions['php74'] = $matches[1];
+        } else {
+            self::$versions['php74'] =
+                'Failed to detect the latest PHP74 version';
+        }
+
         exec('apt-get update');
     }
 
@@ -69,4 +77,15 @@ public function testPHP73Version()
             $this->fail('Failed to detect the current php73 version');
         }
     }
+
+    public function testPHP74Version()
+    {
+        $output = exec('apt-cache madison gcp-php74');
+        $pattern = '/(7\.4\.\d+)/';
+        if (preg_match($pattern, $output, $matches)) {
+            $this->assertEquals($matches[1], self::$versions['php74']);
+        } else {
+            $this->fail('Failed to detect the current php74 version');
+        }
+    }
 }
diff --git a/cloudbuild-ubuntu.yaml b/cloudbuild-ubuntu.yaml
index e3bb3003..a3746ebb 100644
--- a/cloudbuild-ubuntu.yaml
+++ b/cloudbuild-ubuntu.yaml
@@ -22,6 +22,17 @@ steps:
     waitFor: ['php-base']
     id: php-base-structure
 
+  # php74
+  - name: gcr.io/cloud-builders/docker
+    args: ['build', '-t', 'gcr.io/${_GOOGLE_PROJECT_ID}/php74:$_TAG', '--build-arg', 'PHP_VERSION=7.4', '.']
+    dir: php-versioned
+    waitFor: ['php-base']
+    id: php74
+  - name: gcr.io/gcp-runtimes/structure_test
+    args: ['-i', 'gcr.io/${_GOOGLE_PROJECT_ID}/php74:$_TAG', '--config', '/workspace/php-versioned/php74.yaml', '-v']
+    waitFor: ['php74']
+    id: php74-structure
+
   # php73
   - name: gcr.io/cloud-builders/docker
     args: ['build', '-t', 'gcr.io/${_GOOGLE_PROJECT_ID}/php73:$_TAG', '--build-arg', 'PHP_VERSION=7.3', '.']
@@ -126,6 +137,24 @@ steps:
     waitFor: ['php71-custom-app', 'test-runner']
     id: php71-custom-test
 
+  # php74-custom test
+  - name: gcr.io/cloud-builders/docker
+    args: ['build', '-t', 'gcr.io/${_GOOGLE_PROJECT_ID}/php74-custom:$_TAG', '.']
+    dir: testapps/php74_custom
+    waitFor: ['php-onbuild']
+    id: php74-custom-build
+  - name: gcr.io/gcp-runtimes/structure_test
+    args: ['-i', 'gcr.io/${_GOOGLE_PROJECT_ID}/php74-custom:$_TAG', '--config', 'php74.yaml', '-v']
+    waitFor: ['php74-custom-build']
+  - name: gcr.io/cloud-builders/docker
+    args: ['run', '--net=nw_$_TAG', '--name=php74-custom', '-d', 'gcr.io/${_GOOGLE_PROJECT_ID}/php74-custom:$_TAG']
+    waitFor: ['php74-custom-build', 'test-network']
+    id: php74-custom-app
+  - name: gcr.io/cloud-builders/docker
+    args: ['run', '--net=nw_$_TAG','-v', '/workspace:/workspace', 'gcr.io/${_GOOGLE_PROJECT_ID}/php-test-runner:$_TAG', '/workspace/testapps/php74_custom/tests']
+    waitFor: ['php74-custom-app', 'test-runner']
+    id: php74-custom-test
+
   # php73-custom test
   - name: gcr.io/cloud-builders/docker
     args: ['build', '-t', 'gcr.io/${_GOOGLE_PROJECT_ID}/php73-custom:$_TAG', '.']
@@ -222,9 +251,35 @@ steps:
     waitFor: ['php73-extensions-build']
     id: php73-extensions-legacy-test
 
+  # php74-extensions test
+  - name: gcr.io/cloud-builders/docker
+    args: [ 'build', '-t', 'gcr.io/${_GOOGLE_PROJECT_ID}/php74-extensions:$_TAG', '.' ]
+    dir: testapps/php74_extensions
+    waitFor: [ 'php-onbuild' ]
+    id: php74-extensions-build
+  - name: gcr.io/cloud-builders/docker
+    args: [ 'run', 'gcr.io/${_GOOGLE_PROJECT_ID}/php74-extensions:$_TAG', 'vendor/bin/phpunit' ]
+    dir: testapps/php74_extensions
+    waitFor: [ 'php74-extensions-build' ]
+    id: php74-extensions-test
+
+  # php74-extensions-legacy test
+  - name: gcr.io/cloud-builders/docker
+    args: [ 'build', '-t', 'gcr.io/${_GOOGLE_PROJECT_ID}/php74-extensions:$_TAG', '.' ]
+    dir: testapps/php74_extensions_legacy
+    waitFor: [ 'php-onbuild' ]
+    id: php74-extensions-legacy-build
+  - name: gcr.io/cloud-builders/docker
+    args: [ 'run', 'gcr.io/${_GOOGLE_PROJECT_ID}/php74-extensions:$_TAG', 'vendor/bin/phpunit' ]
+    dir: testapps/php74_extensions_legacy
+    waitFor: [ 'php74-extensions-build' ]
+    id: php74-extensions-legacy-test
+
+
 images:
   - gcr.io/${_GOOGLE_PROJECT_ID}/php-base:$_TAG
   - gcr.io/${_GOOGLE_PROJECT_ID}/php:$_TAG
+  - gcr.io/${_GOOGLE_PROJECT_ID}/php74:$_TAG
   - gcr.io/${_GOOGLE_PROJECT_ID}/php73:$_TAG
   - gcr.io/${_GOOGLE_PROJECT_ID}/php72:$_TAG
   - gcr.io/${_GOOGLE_PROJECT_ID}/php71:$_TAG
diff --git a/integration-tests.yaml b/integration-tests.yaml
index 974f422c..f5db3c08 100644
--- a/integration-tests.yaml
+++ b/integration-tests.yaml
@@ -6,6 +6,17 @@ steps:
     waitFor: ['-']
     id: test-runner
 
+  # php74_e2e test
+  - name: gcr.io/${_GOOGLE_PROJECT_ID}/php-test-runner:$_TAG
+    args: ['/workspace/testapps/php74_e2e/tests']
+    waitFor: ['test-runner']
+    id: php74_e2e
+    env:
+      - 'SERVICE_ACCOUNT_JSON=${_SERVICE_ACCOUNT_JSON}'
+      - 'TAG=${_TAG}-e2e'
+      - 'E2E_PROJECT_ID=${_E2E_PROJECT_ID}'
+      - 'TEST_VM_IMAGE=${_TEST_VM_IMAGE}'
+
   # php73_e2e test
   - name: gcr.io/${_GOOGLE_PROJECT_ID}/php-test-runner:$_TAG
     args: ['/workspace/testapps/php73_e2e/tests']
diff --git a/package-builder/debian/patches/php74-parse_str_harden.patch b/package-builder/debian/patches/php74-parse_str_harden.patch
new file mode 100644
index 00000000..e69de29b
diff --git a/package-builder/gpgkeys/php74/derick.key b/package-builder/gpgkeys/php74/derick.key
new file mode 100644
index 00000000..574fdf58
--- /dev/null
+++ b/package-builder/gpgkeys/php74/derick.key
@@ -0,0 +1,92 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+
+mQINBFz/qPEBEADrf32izstZbS3xXCESaNKP7UvXhHKHzVA8QzXk/UOtRdqDF4u7
+sUaZ5ybuvf/QIDebqzOGki/2pnyJ+TUpk9iQpBR4XEm9+u1F9x8N7DVienhqeyXj
+6MBG/ToZ07CQbsSLJWS1I/J/SEaotrJ5CGaoOXZzE8m487wk5IMhKCTfetT3j9AF
+YDZFEtIm0Hcxm6lj1npG9gyzDJFtxgpZCWpnT2JnggOp546mX9i4hYQKX/31ukQS
+ioUP202Wlpj6YPLaKFPpFZ77i559tJZ8USPGkZ37HVxwIoqpWJiCASXRvD5LrRFp
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+=0twV
+-----END PGP PUBLIC KEY BLOCK-----
diff --git a/package-builder/gpgkeys/php74/petk.key b/package-builder/gpgkeys/php74/petk.key
new file mode 100644
index 00000000..f5a4b89d
--- /dev/null
+++ b/package-builder/gpgkeys/php74/petk.key
@@ -0,0 +1,52 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+
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+-----END PGP PUBLIC KEY BLOCK-----
diff --git a/php-base/Dockerfile b/php-base/Dockerfile
index 14f4313a..b13f205c 100644
--- a/php-base/Dockerfile
+++ b/php-base/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# Dockerfile for PHP 7.1/7.2/7.3 using nginx as the webserver.
+# Dockerfile for PHP 7.1/7.2/7.3/7.4 using nginx as the webserver.
 
 FROM gcr.io/gcp-runtimes/ubuntu_16_0_4
 
@@ -68,6 +68,7 @@ ENV NGINX_DIR=/etc/nginx \
     PHP71_DIR=/opt/php71 \
     PHP72_DIR=/opt/php72 \
     PHP73_DIR=/opt/php73 \
+    PHP74_DIR=/opt/php74 \
     APP_DIR=/app \
     NGINX_USER_CONF_DIR=/etc/nginx/conf.d \
     UPLOAD_DIR=/upload \
diff --git a/php-base/build-scripts/composer.sh b/php-base/build-scripts/composer.sh
index edced9f3..7775e14b 100644
--- a/php-base/build-scripts/composer.sh
+++ b/php-base/build-scripts/composer.sh
@@ -23,7 +23,7 @@ else
     set -e
 fi
 
-DEFAULT_PHP_VERSION="7.3"
+DEFAULT_PHP_VERSION="7.4"
 
 if [ -f ${APP_DIR}/composer.json ]; then
     if [ -n "${DETECTED_PHP_VERSION}" ]; then
@@ -36,16 +36,16 @@ if [ -f ${APP_DIR}/composer.json ]; then
 
         if [ "${PHP_VERSION}" == "exact" ]; then
             cat<<EOF
-An exact PHP version was specified in composer.json. Please pin your PHP version to a minor version such as '7.3.*'.
+An exact PHP version was specified in composer.json. Please pin your PHP version to a minor version such as '7.4.*'.
 EOF
             exit 1
-        elif [ "${PHP_VERSION}" != "7.1" ] && [ "${PHP_VERSION}" != "7.2" ] && [ "${PHP_VERSION}" != "7.3" ]; then
+        elif [ "${PHP_VERSION}" != "7.1" ] && [ "${PHP_VERSION}" != "7.2" ] && [ "${PHP_VERSION}" != "7.3" ] && [ "${PHP_VERSION}" != "7.4" ]; then
             cat<<EOF
-There is no PHP runtime version specified in composer.json, or we don't support the version you specified. Google App Engine uses the latest 7.3.x version. We recommend pinning your PHP version by running:
+There is no PHP runtime version specified in composer.json, or we don't support the version you specified. Google App Engine uses the latest 7.4.x version. We recommend pinning your PHP version by running:
 
-composer require php 7.3.* (replace it with your desired minor version)
+composer require php 7.4.* (replace it with your desired minor version)
 
-Using PHP version 7.3.x...
+Using PHP version 7.4.x...
 EOF
             PHP_VERSION=${DEFAULT_PHP_VERSION}
         fi
@@ -58,6 +58,10 @@ EOF
             apt-get -y update
             /bin/bash /build-scripts/install_php73.sh
             apt-get remove -y gcp-php71
+        elif [ "${PHP_VERSION}" == "7.4" ]; then
+            apt-get -y update
+            /bin/bash /build-scripts/install_php74.sh
+            apt-get remove -y gcp-php71
         fi
     fi
 
diff --git a/php-base/build-scripts/dump_php_versions.sh b/php-base/build-scripts/dump_php_versions.sh
index 9cfbd6fa..5648f8aa 100644
--- a/php-base/build-scripts/dump_php_versions.sh
+++ b/php-base/build-scripts/dump_php_versions.sh
@@ -18,7 +18,7 @@
 # A shell script for dumping php versions to files.
 set -xe
 
-PHP_SHORT_NAMES=(php71 php72 php73)
+PHP_SHORT_NAMES=(php71 php72 php73 php74)
 
 for PHP_SHORT_NAME in "${PHP_SHORT_NAMES[@]}"
 do
diff --git a/php-base/build-scripts/install_php.sh b/php-base/build-scripts/install_php.sh
index 25306b62..b1b980c2 100755
--- a/php-base/build-scripts/install_php.sh
+++ b/php-base/build-scripts/install_php.sh
@@ -21,6 +21,9 @@ set -xe
 echo "PHP_VERSION is $PHP_VERSION"
 
 case $PHP_VERSION in
+    7.4*)
+        /bin/bash /build-scripts/install_php74.sh
+        ;;
     7.3*)
         /bin/bash /build-scripts/install_php73.sh
         ;;
diff --git a/php-base/build-scripts/install_php74.sh b/php-base/build-scripts/install_php74.sh
new file mode 100755
index 00000000..a1aa0bd6
--- /dev/null
+++ b/php-base/build-scripts/install_php74.sh
@@ -0,0 +1,59 @@
+#!/bin/bash
+
+# Copyright 2015 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# A shell script for installing PHP 7.4.x.
+set -xe
+
+apt-get update -y
+apt-get install -y --no-install-recommends \
+        gcp-php74 \
+        gcp-php74-apcu \
+        gcp-php74-apcu-bc \
+        gcp-php74-ev \
+        gcp-php74-event \
+        gcp-php74-grpc \
+        gcp-php74-imagick \
+        gcp-php74-mailparse \
+        gcp-php74-memcached \
+        gcp-php74-mongodb \
+        gcp-php74-oauth \
+        gcp-php74-opencensus \
+        gcp-php74-pq \
+        gcp-php74-protobuf \
+        gcp-php74-rdkafka \
+        gcp-php74-redis \
+        gcp-php74-stackdriver-debugger
+
+/bin/bash /build-scripts/apt-cleanup.sh
+
+# Enable some extensions for backward compatibility
+ln -sf ${PHP74_DIR}/bin/php74-enmod ${PHP74_DIR}/bin/php-enmod
+ln -sf ${PHP74_DIR}/bin/php74-dismod  ${PHP74_DIR}/bin/php-dismod
+${PHP74_DIR}/bin/php74-enmod apcu-bc
+${PHP74_DIR}/bin/php74-enmod mailparse
+${PHP74_DIR}/bin/php74-enmod memcached
+
+# Copy the config files
+mkdir -p "${PHP74_DIR}/etc"
+cp "${PHP_CONFIG_TEMPLATE}/php-fpm.conf" "${PHP74_DIR}/etc/php-fpm.conf"
+touch "${PHP74_DIR}/etc/php-fpm-user.conf"
+cp "${PHP_CONFIG_TEMPLATE}/php.ini" "${PHP74_DIR}/lib"
+cp "${PHP_CONFIG_TEMPLATE}/php-cli.ini" "${PHP74_DIR}/lib"
+
+# Making php74 the default version
+rm -f ${PHP_DIR}
+ln -s ${PHP74_DIR} ${PHP_DIR}
diff --git a/php-base/build-scripts/src/DetectPhpVersion.php b/php-base/build-scripts/src/DetectPhpVersion.php
index 7d628b93..cf5ea117 100644
--- a/php-base/build-scripts/src/DetectPhpVersion.php
+++ b/php-base/build-scripts/src/DetectPhpVersion.php
@@ -71,6 +71,7 @@ public static function version($constraint, $availableVersions = null)
     private static function detectAvailableVersions()
     {
         return [
+            trim(file_get_contents('/opt/php74_version')),
             trim(file_get_contents('/opt/php73_version')),
             trim(file_get_contents('/opt/php72_version')),
             trim(file_get_contents('/opt/php71_version')),
diff --git a/php-versioned/php74.yaml b/php-versioned/php74.yaml
new file mode 100644
index 00000000..f0409930
--- /dev/null
+++ b/php-versioned/php74.yaml
@@ -0,0 +1,11 @@
+schemaVersion: "1.0.0"
+commandTests:
+  - name: "php-path"
+    command: ["which", "php"]
+    expectedOutput: ["/opt/php/bin/php"]
+  - name: "version"
+    command: ["php", "-v"]
+    expectedOutput: ["PHP 7\\.4.*"]
+licenseTests:
+  - debian: true
+    files: []
diff --git a/scripts/record_deployment_latency.sh b/scripts/record_deployment_latency.sh
index 87a269ca..ada90ad0 100755
--- a/scripts/record_deployment_latency.sh
+++ b/scripts/record_deployment_latency.sh
@@ -32,7 +32,7 @@ TEST_RUNNER="gcr.io/${GOOGLE_PROJECT_ID}/php-test-runner:${TAG}"
 
 if [ -n "${REBUILD_TEST_RUNNER}" ]; then
     # build the php test runner
-    export TEST_RUNNER_BASE_IMAGE="gcr.io/google-appengine/php73:latest"
+    export TEST_RUNNER_BASE_IMAGE="gcr.io/google-appengine/php74:latest"
     envsubst '${TEST_RUNNER_BASE_IMAGE}' \
              < cloudbuild-test-runner/Dockerfile.in \
              > cloudbuild-test-runner/Dockerfile
diff --git a/scripts/release.sh b/scripts/release.sh
index c488d9e0..2d7e68b6 100755
--- a/scripts/release.sh
+++ b/scripts/release.sh
@@ -19,6 +19,7 @@ scripts/build_images.sh
 
 IMAGE_NAME="gcr.io/${GOOGLE_PROJECT_ID}/php:${TAG}"
 BASE_IMAGE_NAME="gcr.io/${GOOGLE_PROJECT_ID}/php-base:${TAG}"
+PHP74_IMAGE_NAME="gcr.io/${GOOGLE_PROJECT_ID}/php74:${TAG}"
 PHP73_IMAGE_NAME="gcr.io/${GOOGLE_PROJECT_ID}/php73:${TAG}"
 PHP72_IMAGE_NAME="gcr.io/${GOOGLE_PROJECT_ID}/php72:${TAG}"
 PHP71_IMAGE_NAME="gcr.io/${GOOGLE_PROJECT_ID}/php71:${TAG}"
@@ -28,6 +29,7 @@ if [ "${ADD_CANDIDATE_TAG}" = "true" ]; then
     echo "CANDIDATE_TAG:${CANDIDATE_TAG}"
     gcloud -q beta container images add-tag "${IMAGE_NAME}" "${DOCKER_NAMESPACE}/php:${CANDIDATE_TAG}"
     gcloud -q beta container images add-tag "${BASE_IMAGE_NAME}" "${DOCKER_NAMESPACE}/php-base:${CANDIDATE_TAG}"
+    gcloud -q beta container images add-tag "${PHP74_IMAGE_NAME}" "${DOCKER_NAMESPACE}/php74:${CANDIDATE_TAG}"
     gcloud -q beta container images add-tag "${PHP73_IMAGE_NAME}" "${DOCKER_NAMESPACE}/php73:${CANDIDATE_TAG}"
     gcloud -q beta container images add-tag "${PHP72_IMAGE_NAME}" "${DOCKER_NAMESPACE}/php72:${CANDIDATE_TAG}"
     gcloud -q beta container images add-tag "${PHP71_IMAGE_NAME}" "${DOCKER_NAMESPACE}/php71:${CANDIDATE_TAG}"
@@ -37,6 +39,7 @@ fi
 if [ "${ADD_STAGING_TAG}" = "true" ]; then
     gcloud -q beta container images add-tag "${IMAGE_NAME}" "${DOCKER_NAMESPACE}/php:staging"
     gcloud -q beta container images add-tag "${BASE_IMAGE_NAME}" "${DOCKER_NAMESPACE}/php-base:staging"
+    gcloud -q beta container images add-tag "${PHP74_IMAGE_NAME}" "${DOCKER_NAMESPACE}/php74:staging"
     gcloud -q beta container images add-tag "${PHP73_IMAGE_NAME}" "${DOCKER_NAMESPACE}/php73:staging"
     gcloud -q beta container images add-tag "${PHP72_IMAGE_NAME}" "${DOCKER_NAMESPACE}/php72:staging"
     gcloud -q beta container images add-tag "${PHP71_IMAGE_NAME}" "${DOCKER_NAMESPACE}/php71:staging"
@@ -47,6 +50,7 @@ METADATA=$(pwd)/METADATA
 cd ${KOKORO_GFILE_DIR}/kokoro
 python note.py php -m ${METADATA} -t ${TAG}
 python note.py php-base -m ${METADATA} -t ${TAG}
+python note.py php74 -m ${METADATA} -t ${TAG}
 python note.py php73 -m ${METADATA} -t ${TAG}
 python note.py php72 -m ${METADATA} -t ${TAG}
 python note.py php71 -m ${METADATA} -t ${TAG}
diff --git a/scripts/ubuntu-packages.cfg b/scripts/ubuntu-packages.cfg
index d910bab7..5fae0316 100644
--- a/scripts/ubuntu-packages.cfg
+++ b/scripts/ubuntu-packages.cfg
@@ -5,6 +5,6 @@ env_vars {
 
 env_vars {
   key: "PHP_VERSIONS"
-  value: "7.3.23-1,7.2.34-1,7.1.33-1"
+  value: "7.4.12-1,7.3.23-1,7.2.34-1,7.1.33-1"
 }
 
diff --git a/testapps/integration-individual-packages/test.yaml.in b/testapps/integration-individual-packages/test.yaml.in
index 3836d968..5c63be92 100644
--- a/testapps/integration-individual-packages/test.yaml.in
+++ b/testapps/integration-individual-packages/test.yaml.in
@@ -1,6 +1,6 @@
 steps:
   - name: '${STAGING_BUILDER_IMAGE}'
-    args: ['--php73-image', 'gcr.io/google-appengine/php73:staging', '--php72-image', 'gcr.io/google-appengine/php72:staging', '--php71-image', 'gcr.io/google-appengine/php71:staging']
+    args: ['--php74-image', 'gcr.io/google-appengine/php74:staging', '--php73-image', 'gcr.io/google-appengine/php73:staging', '--php72-image', 'gcr.io/google-appengine/php72:staging', '--php71-image', 'gcr.io/google-appengine/php71:staging']
   - name: 'gcr.io/cloud-builders/docker:latest'
     args: ['build', '-t', '$_OUTPUT_IMAGE', '.']
 images:
diff --git a/testapps/integration/test.yaml.in b/testapps/integration/test.yaml.in
index 3836d968..5c63be92 100644
--- a/testapps/integration/test.yaml.in
+++ b/testapps/integration/test.yaml.in
@@ -1,6 +1,6 @@
 steps:
   - name: '${STAGING_BUILDER_IMAGE}'
-    args: ['--php73-image', 'gcr.io/google-appengine/php73:staging', '--php72-image', 'gcr.io/google-appengine/php72:staging', '--php71-image', 'gcr.io/google-appengine/php71:staging']
+    args: ['--php74-image', 'gcr.io/google-appengine/php74:staging', '--php73-image', 'gcr.io/google-appengine/php73:staging', '--php72-image', 'gcr.io/google-appengine/php72:staging', '--php71-image', 'gcr.io/google-appengine/php71:staging']
   - name: 'gcr.io/cloud-builders/docker:latest'
     args: ['build', '-t', '$_OUTPUT_IMAGE', '.']
 images:
diff --git a/testapps/php74_custom/.gitignore b/testapps/php74_custom/.gitignore
new file mode 100644
index 00000000..09a29da8
--- /dev/null
+++ b/testapps/php74_custom/.gitignore
@@ -0,0 +1,2 @@
+cloudbuild.yaml
+Dockerfile
diff --git a/testapps/php74_custom/Dockerfile.in b/testapps/php74_custom/Dockerfile.in
new file mode 100644
index 00000000..2b1ce1c8
--- /dev/null
+++ b/testapps/php74_custom/Dockerfile.in
@@ -0,0 +1,18 @@
+# Copyright 2015 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM ${BASE_IMAGE}
+
+ENV DOCUMENT_ROOT=/app/web
+ENV FRONT_CONTROLLER_FILE=app.php
diff --git a/testapps/php74_custom/composer.json b/testapps/php74_custom/composer.json
new file mode 100644
index 00000000..21d1038d
--- /dev/null
+++ b/testapps/php74_custom/composer.json
@@ -0,0 +1,22 @@
+{
+    "require": {
+        "php": "7.4.*",
+        "ext-bcmath": "*",
+        "ext-calendar": "*",
+        "ext-exif": "*",
+        "ext-ftp": "*",
+        "ext-gd": "*",
+        "ext-gettext": "*",
+        "ext-intl": "*",
+        "ext-shmop": "*",
+        "ext-soap": "*",
+        "ext-sqlite3": "*",
+        "ext-pdo_sqlite": "*",
+        "ext-xmlrpc": "*",
+        "ext-xsl": "*",
+        "ext-mongodb": "*",
+        "ext-redis": "*",
+        "ext-imagick": "*",
+        "silex/silex": "^1.3"
+    }
+}
diff --git a/testapps/php74_custom/php74.yaml b/testapps/php74_custom/php74.yaml
new file mode 100644
index 00000000..f71ecd8a
--- /dev/null
+++ b/testapps/php74_custom/php74.yaml
@@ -0,0 +1,5 @@
+schemaVersion: "1.0.0"
+commandTests:
+  - name: "version"
+    command: ["/opt/php/bin/php", "-v"]
+    expectedOutput: ["PHP 7\\.4.*"]
diff --git a/testapps/php74_custom/tests/composer.json b/testapps/php74_custom/tests/composer.json
new file mode 100644
index 00000000..c3a35663
--- /dev/null
+++ b/testapps/php74_custom/tests/composer.json
@@ -0,0 +1,6 @@
+{
+    "require-dev": {
+        "guzzlehttp/guzzle": "~6.0",
+        "symfony/browser-kit": "~2"
+    }
+}
diff --git a/testapps/php74_custom/tests/phpunit.xml.dist b/testapps/php74_custom/tests/phpunit.xml.dist
new file mode 100644
index 00000000..8ded8984
--- /dev/null
+++ b/testapps/php74_custom/tests/phpunit.xml.dist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit bootstrap="./tests/bootstrap.php" colors="true">
+  <testsuites>
+    <testsuite>
+      <directory>tests</directory>
+    </testsuite>
+  </testsuites>
+</phpunit>
diff --git a/testapps/php74_custom/tests/tests/PHP74CustomTest.php b/testapps/php74_custom/tests/tests/PHP74CustomTest.php
new file mode 100644
index 00000000..bc5e9431
--- /dev/null
+++ b/testapps/php74_custom/tests/tests/PHP74CustomTest.php
@@ -0,0 +1,139 @@
+<?php
+/**
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+namespace Google\Cloud\tests;
+
+use GuzzleHttp\Client;
+use PHPUnit\Framework\TestCase;
+
+class PHP7CustomTest extends TestCase
+{
+    private $client;
+
+    private static $extensions = array(
+        # static
+        'date',
+        'libxml',
+        'openssl',
+        'pcre',
+        'zlib',
+        'apc',
+        'apcu',
+        'bz2',
+        'ctype',
+        'curl',
+        'dom',
+        'fileinfo',
+        'filter',
+        'hash',
+        'iconv',
+        'json',
+        'mailparse',
+        'SPL',
+        'session',
+        'PDO',
+        'standard',
+        'pcntl',
+        'pdo_pgsql',
+        'pgsql',
+        'Phar',
+        'posix',
+        'readline',
+        'recode',
+        'Reflection',
+        'mysqlnd',
+        'SimpleXML',
+        'sockets',
+        'pdo_mysql',
+        'mysqli',
+        'tokenizer',
+        'xml',
+        'xmlreader',
+        'xmlwriter',
+        'zip',
+        'cgi-fcgi',
+        # shared
+        'bcmath',
+        'calendar',
+        'exif',
+        'ftp',
+        'gd',
+        'gettext',
+        'intl',
+        'mbstring',
+        'memcached',
+        'mysql',
+        'redis',
+        'shmop',
+        'soap',
+        'sqlite3',
+        'pdo_sqlite',
+        'xmlrpc',
+        'xsl',
+        'mongodb',
+        'imagick',
+    );
+
+    public static function setUpBeforeClass()
+    {
+        // Wait for nginx to start
+        sleep(3);
+    }
+
+    public function setUp()
+    {
+        $this->client = new Client(['base_uri' => 'http://php74-custom:8080/']);
+    }
+
+    public function testExtensions()
+    {
+        $resp = $this->client->get('extensions.php');
+        $loaded = $resp->getBody()->getContents();
+        foreach (self::$extensions as $ext) {
+            $this->assertContains($ext, $loaded);
+        }
+    }
+
+    public function testApcIsAbleToExecuteCommonOperations()
+    {
+        $resp = $this->client->get('apc.php');
+        $body = $resp->getBody()->getContents();
+
+        $this->assertContains('success storing in apc bc', $body);
+        $this->assertContains('success fetching from apc bc', $body);
+        $this->assertContains('success deleting from apc bc', $body);
+        $this->assertContains('success storing in apcu', $body);
+        $this->assertContains('success fetching from apcu', $body);
+        $this->assertContains('success deleting from apcu', $body);
+    }
+
+    public function testImagickCanLoad()
+    {
+        $resp = $this->client->get('imagick.php');
+        $body = $resp->getBody()->getContents();
+
+        // test image should by 300px by 1px
+        $this->assertContains('300x1', $body);
+    }
+
+    public function testFrontControllerFileEnv()
+    {
+        // Access the top page and it should be served by app.php
+        $resp = $this->client->get('');
+        $body = $resp->getBody()->getContents();
+        $this->assertContains('FRONT_CONTROLLER_FILE works', $body);
+    }
+}
diff --git a/testapps/php74_custom/tests/tests/bootstrap.php b/testapps/php74_custom/tests/tests/bootstrap.php
new file mode 100644
index 00000000..864f1cd1
--- /dev/null
+++ b/testapps/php74_custom/tests/tests/bootstrap.php
@@ -0,0 +1,17 @@
+<?php
+/**
+ * Copyright 2016 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+require_once __DIR__ . '/../vendor/autoload.php';
diff --git a/testapps/php74_custom/web/Blank300.png b/testapps/php74_custom/web/Blank300.png
new file mode 100644
index 00000000..e96fe466
Binary files /dev/null and b/testapps/php74_custom/web/Blank300.png differ
diff --git a/testapps/php74_custom/web/apc.php b/testapps/php74_custom/web/apc.php
new file mode 100644
index 00000000..4a2e13e1
--- /dev/null
+++ b/testapps/php74_custom/web/apc.php
@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+$value = 'STRINGTOBECACHED';
+
+if (true === apc_store('artificialkey', $value)) {
+    echo('success storing in apc bc' . PHP_EOL);
+}
+
+if ($value === apc_fetch('artificialkey')) {
+    echo('success fetching from apc bc' . PHP_EOL);
+}
+
+if (true === apc_delete('artificialkey')) {
+    echo('success deleting from apc bc' . PHP_EOL);
+}
+
+if (true === apcu_add('artificialkey', $value)) {
+    echo('success storing in apcu' . PHP_EOL);
+}
+
+if ($value === apcu_fetch('artificialkey')) {
+    echo('success fetching from apcu' . PHP_EOL);
+}
+
+if (true === apcu_delete('artificialkey')) {
+    echo('success deleting from apcu' . PHP_EOL);
+}
diff --git a/testapps/php74_custom/web/app.php b/testapps/php74_custom/web/app.php
new file mode 100644
index 00000000..92afaa42
--- /dev/null
+++ b/testapps/php74_custom/web/app.php
@@ -0,0 +1,20 @@
+<?php
+
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+echo 'FRONT_CONTROLLER_FILE works' . PHP_EOL;
diff --git a/testapps/php74_custom/web/extensions.php b/testapps/php74_custom/web/extensions.php
new file mode 100644
index 00000000..301402f2
--- /dev/null
+++ b/testapps/php74_custom/web/extensions.php
@@ -0,0 +1,20 @@
+<?php
+
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+foreach (get_loaded_extensions() as $key => $value) {
+    echo $value . "\n";
+}
diff --git a/testapps/php74_custom/web/imagick.php b/testapps/php74_custom/web/imagick.php
new file mode 100644
index 00000000..59ed28fb
--- /dev/null
+++ b/testapps/php74_custom/web/imagick.php
@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+$image = new Imagick(__DIR__ . '/Blank300.png');
+$dimensions = $image->getImageGeometry();
+echo $dimensions['width'] . 'x' . $dimensions['height'];
diff --git a/testapps/php74_custom/web/parse_str.php b/testapps/php74_custom/web/parse_str.php
new file mode 100644
index 00000000..978b35d1
--- /dev/null
+++ b/testapps/php74_custom/web/parse_str.php
@@ -0,0 +1,23 @@
+<?php
+
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+$important = 'This is an important variable';
+
+@parse_str('important=fakevalue');
+
+echo $important;
diff --git a/testapps/php74_e2e/.gitignore b/testapps/php74_e2e/.gitignore
new file mode 100644
index 00000000..09a29da8
--- /dev/null
+++ b/testapps/php74_e2e/.gitignore
@@ -0,0 +1,2 @@
+cloudbuild.yaml
+Dockerfile
diff --git a/testapps/php74_e2e/Dockerfile.in b/testapps/php74_e2e/Dockerfile.in
new file mode 100644
index 00000000..1aace809
--- /dev/null
+++ b/testapps/php74_e2e/Dockerfile.in
@@ -0,0 +1,17 @@
+# Copyright 2015 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM ${BASE_IMAGE}
+
+ENV DOCUMENT_ROOT /app/web
diff --git a/testapps/php74_e2e/app.yaml b/testapps/php74_e2e/app.yaml
new file mode 100644
index 00000000..d90400f7
--- /dev/null
+++ b/testapps/php74_e2e/app.yaml
@@ -0,0 +1,15 @@
+runtime: custom
+env: flex
+
+runtime_config:
+  document_root: web
+
+env_variables:
+  WHITELIST_FUNCTIONS: phpinfo,exec
+
+liveness_check:
+  path: "/liveness_check"
+  check_interval_sec: 30
+  timeout_sec: 4
+  failure_threshold: 2
+  success_threshold: 2
diff --git a/testapps/php74_e2e/composer.json b/testapps/php74_e2e/composer.json
new file mode 100644
index 00000000..100762c1
--- /dev/null
+++ b/testapps/php74_e2e/composer.json
@@ -0,0 +1,13 @@
+{
+    "require": {
+        "php": "7.4.*",
+        "ext-grpc": "*",
+        "ext-pdo_sqlite": "*",
+        "google/cloud": "*",
+        "grpc/grpc": "*",
+        "silex/silex": "^1.3"
+    },
+    "autoload": {
+        "classmap": ["web"]
+    }
+}
diff --git a/testapps/php74_e2e/tests/composer.json b/testapps/php74_e2e/tests/composer.json
new file mode 100644
index 00000000..f83675f1
--- /dev/null
+++ b/testapps/php74_e2e/tests/composer.json
@@ -0,0 +1,7 @@
+{
+    "require-dev": {
+        "google/cloud-tools": "~0.6",
+        "guzzlehttp/guzzle": "~6.0",
+        "symfony/browser-kit": "~2"
+    }
+}
diff --git a/testapps/php74_e2e/tests/phpunit.xml.dist b/testapps/php74_e2e/tests/phpunit.xml.dist
new file mode 100644
index 00000000..8ded8984
--- /dev/null
+++ b/testapps/php74_e2e/tests/phpunit.xml.dist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit bootstrap="./tests/bootstrap.php" colors="true">
+  <testsuites>
+    <testsuite>
+      <directory>tests</directory>
+    </testsuite>
+  </testsuites>
+</phpunit>
diff --git a/testapps/php74_e2e/tests/tests/EndToEndTest.php b/testapps/php74_e2e/tests/tests/EndToEndTest.php
new file mode 100644
index 00000000..2260dfa2
--- /dev/null
+++ b/testapps/php74_e2e/tests/tests/EndToEndTest.php
@@ -0,0 +1,250 @@
+<?php
+
+/**
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+namespace Google\Cloud\tests;
+
+use Google\Cloud\TestUtils\EventuallyConsistentTestTrait;
+use GuzzleHttp\Client;
+use GuzzleHttp\Cookie\CookieJar;
+use PHPUnit\Framework\TestCase;
+
+class EndToEndTest extends TestCase
+{
+    use EventuallyConsistentTestTrait;
+
+    private $client;
+
+    const PROJECT_ENV = 'E2E_PROJECT_ID';
+    const VERSION_ENV = 'TAG';
+    const SERVICE_ACCOUNT_ENV = 'SERVICE_ACCOUNT_JSON';
+
+    public static function setUpBeforeClass()
+    {
+        $project_id = getenv(self::PROJECT_ENV);
+        $e2e_test_version = getenv(self::VERSION_ENV);
+        $service_account_json = getenv(SELF::SERVICE_ACCOUNT_ENV);
+        if ($project_id == false) {
+            self::fail('Please set ' . self::PROJECT_ENV . ' env var.');
+        }
+        if ($e2e_test_version == false) {
+            self::fail('Please set ' . self::VERSION_ENV . ' env var.');
+        }
+        if ($service_account_json == false) {
+            self::fail('Please set ' . self::SERVICE_ACCOUNT_ENV . ' env var.');
+        }
+
+        self::execWithError(
+            sprintf(
+                'gcloud config set project %s',
+                $project_id
+            ),
+            'Failed to set project_id: '
+        );
+        self::deploy($project_id, $e2e_test_version);
+    }
+
+    public static function deploy($project_id, $e2e_test_version)
+    {
+        // Now it's appending a whole `beta_settings` section because the
+        // app.yaml doesn't have it. Apparently it's cleaner if we read the
+        // yaml file and add the config by yaml library.
+        $testVmImage = getenv('TEST_VM_IMAGE');
+        if (! empty($testVmImage)) {
+            $betaSettings = "beta_settings:\n"
+                . "  image: $testVmImage\n";
+            file_put_contents(
+                '../app.yaml',
+                $betaSettings,
+                FILE_APPEND | LOCK_EX
+            );
+        }
+        echo 'Deploying with the following app.yaml' . PHP_EOL;
+        echo file_get_contents('../app.yaml');
+        $command = "gcloud -q app deploy --version $e2e_test_version"
+            . " --project $project_id --no-promote"
+            . ' ../app.yaml';
+        printf("Executing command: '%s'\n", $command);
+        for ($i = 0; $i <= 3; $i++) {
+            exec(
+                $command,
+                $output,
+                $ret
+            );
+            if ($ret === 0) {
+                return;
+            } else {
+                echo 'Retrying deployment';
+            }
+        }
+        self::fail('Deployment failed.');
+    }
+
+
+    public static function tearDownAfterClass()
+    {
+        // TODO: check the return value and maybe retry?
+        $cmd = sprintf(
+            'gcloud -q app versions delete --service default '
+            . '--project %s %s',
+            getenv(self::PROJECT_ENV),
+            getenv(self::VERSION_ENV)
+        );
+        exec($cmd);
+    }
+
+    private static function execWithError($command, $errorPrefix)
+    {
+        printf("Executing command: '%s'\n", $command);
+        exec(
+            $command,
+            $output,
+            $ret
+        );
+        if ($ret !== 0) {
+            self::fail(
+                $errorPrefix
+                . implode(PHP_EOL, $output)
+            );
+        }
+    }
+
+    public function setUp()
+    {
+        $this->eventuallyConsistentRetryCount = 10;
+        $this->catchAllExceptions = true;
+
+        $url = sprintf('https://%s-dot-%s.appspot.com/',
+                       getenv(self::VERSION_ENV),
+                       getenv(self::PROJECT_ENV));
+        $this->client = new Client(['base_uri' => $url]);
+    }
+
+    public function testIndex()
+    {
+        $this->runEventuallyConsistentTest(function () {
+            // Index serves succesfully with 'Hello World'.
+            // This works because the custom DOCUMENT_ROOT is working.
+            $resp = $this->client->get('index.php');
+            $this->assertEquals('200', $resp->getStatusCode(),
+                                'index.php status code');
+            $this->assertContains('Hello World', $resp->getBody()->getContents());
+        });
+    }
+
+    public function testHttpsEnv()
+    {
+        $this->runEventuallyConsistentTest(function () {
+            // Check the HTTPS envvar on the server
+            $resp = $this->client->get('https-env.php');
+            $this->assertEquals('200', $resp->getStatusCode(),
+                                'https-env.php status code');
+            $this->assertContains('HTTPS: on', $resp->getBody()->getContents());
+        });
+    }
+
+    public function testGoodbye()
+    {
+        $this->runEventuallyConsistentTest(function () {
+            // The URL '/goodbye' works with 'Goodbye World'.
+            // This works because the nginx-app.conf is effective.
+            $resp = $this->client->get('/goodbye');
+            $this->assertEquals('200', $resp->getStatusCode(),
+                                '/goodbye status code');
+            $this->assertContains('Goodbye World',
+                                  $resp->getBody()->getContents());
+        });
+    }
+
+    public function testPhpInfo()
+    {
+        $this->runEventuallyConsistentTest(function () {
+            // Access to phpinfo.php, while phpinfo() should be enabled this time.
+            $resp = $this->client->get('phpinfo.php');
+            $this->assertEquals('200', $resp->getStatusCode(),
+                                'phpinfo.php status code');
+            $this->assertTrue(strlen($resp->getBody()->getContents()) > 1000,
+                              'phpinfo() should be enabled.');
+        });
+    }
+
+    public function testExec()
+    {
+        $this->runEventuallyConsistentTest(function () {
+            // Access to exec.php; exec() should be enabled.
+            $resp = $this->client->get('exec.php');
+            $this->assertEquals(
+                '200',
+                $resp->getStatusCode(),
+                'exec.php status code'
+            );
+            $this->assertContains(
+                'exec succeeded.',
+                $resp->getBody()->getContents()
+            );
+        });
+    }
+
+    public function testPdoSqlite()
+    {
+        $this->runEventuallyConsistentTest(function () {
+            // Access to pdo_sqlite.php, which should work.
+            $resp = $this->client->get('pdo_sqlite.php');
+            $this->assertEquals('200', $resp->getStatusCode(),
+                                'pdo_sqlite.php status code');
+            $this->assertContains('Hello pdo_sqlite',
+                                  $resp->getBody()->getContents());
+        });
+    }
+
+    public function testSessionSaveHandler()
+    {
+        $this->markTestSkipped('Memcache is not available on env:flex.');
+        $this->runEventuallyConsistentTest(function () {
+            $resp = $this->client->get('session_save_handler.php');
+            $this->assertEquals('200', $resp->getStatusCode(),
+                                'session_save_handler status code');
+            $this->assertContains('memcached',
+                                  $resp->getBody()->getContents());
+        });
+    }
+
+    public function testSession()
+    {
+        $this->markTestSkipped('Memcache is not available on env:flex.');
+        $this->runEventuallyConsistentTest(function () {
+            $jar = new CookieJar();
+            $resp = $this->client->get('session.php', ['cookies' => $jar]);
+            $this->assertEquals('200', $resp->getStatusCode(),
+                                'session.php status code');
+            $this->assertEquals('0', $body = $resp->getBody()->getContents());
+
+            $resp = $this->client->get('session.php', ['cookies' => $jar]);
+            $this->assertEquals('200', $resp->getStatusCode(),
+                                'session.php status code');
+            $this->assertEquals('1', $body = $resp->getBody()->getContents());
+        });
+    }
+
+    public function testGrpcPubsub()
+    {
+        $this->runEventuallyConsistentTest(function () {
+            $resp = $this->client->get('grpc_pubsub.php');
+            $this->assertEquals('200', $resp->getStatusCode(),
+                                'grpc_pubsub.php status code');
+        });
+    }
+}
diff --git a/testapps/php74_e2e/tests/tests/bootstrap.php b/testapps/php74_e2e/tests/tests/bootstrap.php
new file mode 100644
index 00000000..823a5ebe
--- /dev/null
+++ b/testapps/php74_e2e/tests/tests/bootstrap.php
@@ -0,0 +1,18 @@
+<?php
+/**
+ * Copyright 2016 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+require_once __DIR__ . '/../vendor/autoload.php';
diff --git a/testapps/php74_e2e/web/exec.php b/testapps/php74_e2e/web/exec.php
new file mode 100644
index 00000000..6ddecdc6
--- /dev/null
+++ b/testapps/php74_e2e/web/exec.php
@@ -0,0 +1,24 @@
+<?php
+
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// exec is disabled by default, but it should run
+if (exec('echo hello') !== 'hello') {
+    exit(1);
+}
+
+echo 'exec succeeded.';
diff --git a/testapps/php74_e2e/web/grpc_pubsub.php b/testapps/php74_e2e/web/grpc_pubsub.php
new file mode 100644
index 00000000..a602b970
--- /dev/null
+++ b/testapps/php74_e2e/web/grpc_pubsub.php
@@ -0,0 +1,11 @@
+<?php
+
+require_once __DIR__ . '/../vendor/autoload.php';
+
+use Google\Cloud\PubSub\PubSubClient;
+
+$client = new PubSubClient(['transport' => 'grpc']);
+
+foreach ($client->topics() as $topic) {
+    echo $topic->name() . '<br>';
+}
diff --git a/testapps/php74_e2e/web/https-env.php b/testapps/php74_e2e/web/https-env.php
new file mode 100644
index 00000000..fb430257
--- /dev/null
+++ b/testapps/php74_e2e/web/https-env.php
@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+echo 'HTTPS: ' . $_SERVER['HTTPS'];
diff --git a/testapps/php74_e2e/web/index.php b/testapps/php74_e2e/web/index.php
new file mode 100644
index 00000000..11251915
--- /dev/null
+++ b/testapps/php74_e2e/web/index.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+require_once __DIR__ . '/../vendor/autoload.php';
+
+$app = new Silex\Application();
+
+$app->get('/', function () {
+    return 'Hello World';
+});
+
+$app->get('/goodbye', function () {
+    return 'Goodbye World';
+});
+
+$app->run();
diff --git a/testapps/php74_e2e/web/pdo_sqlite.php b/testapps/php74_e2e/web/pdo_sqlite.php
new file mode 100644
index 00000000..5b800090
--- /dev/null
+++ b/testapps/php74_e2e/web/pdo_sqlite.php
@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+$pdo = new PDO('sqlite::memory:');
+echo 'Hello pdo_sqlite';
diff --git a/testapps/php74_e2e/web/phpinfo.php b/testapps/php74_e2e/web/phpinfo.php
new file mode 100644
index 00000000..f2882d83
--- /dev/null
+++ b/testapps/php74_e2e/web/phpinfo.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+phpinfo();
diff --git a/testapps/php74_e2e/web/session.php b/testapps/php74_e2e/web/session.php
new file mode 100644
index 00000000..5f066331
--- /dev/null
+++ b/testapps/php74_e2e/web/session.php
@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+session_start();
+if (!isset($_SESSION['count'])) {
+    $_SESSION['count'] = 0;
+} else {
+    $_SESSION['count']++;
+}
+echo $_SESSION['count'];
diff --git a/testapps/php74_e2e/web/session_save_handler.php b/testapps/php74_e2e/web/session_save_handler.php
new file mode 100644
index 00000000..3c4831df
--- /dev/null
+++ b/testapps/php74_e2e/web/session_save_handler.php
@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+echo ini_get('session.save_handler');
diff --git a/testapps/php74_extensions/.gitignore b/testapps/php74_extensions/.gitignore
new file mode 100644
index 00000000..94143827
--- /dev/null
+++ b/testapps/php74_extensions/.gitignore
@@ -0,0 +1 @@
+Dockerfile
diff --git a/testapps/php74_extensions/Dockerfile.in b/testapps/php74_extensions/Dockerfile.in
new file mode 100644
index 00000000..6e73ea21
--- /dev/null
+++ b/testapps/php74_extensions/Dockerfile.in
@@ -0,0 +1,15 @@
+# Copyright 2017 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM ${BASE_IMAGE}
diff --git a/testapps/php74_extensions/composer.json b/testapps/php74_extensions/composer.json
new file mode 100644
index 00000000..1066c2f8
--- /dev/null
+++ b/testapps/php74_extensions/composer.json
@@ -0,0 +1,54 @@
+{
+    "require": {
+        "php": "7.4.*",
+        "phpunit/phpunit": "^4.8.35",
+        "ext-amqp": "*",
+        "ext-bcmath": "*",
+        "ext-calendar": "*",
+        "ext-couchbase": "*",
+        "ext-ds": "*",
+        "ext-eio": "*",
+        "ext-exif": "*",
+        "ext-ftp": "*",
+        "ext-gd": "*",
+        "ext-gettext": "*",
+        "ext-hprose": "*",
+        "ext-intl": "*",
+        "ext-jsond": "*",
+        "ext-krb5": "*",
+        "ext-lua": "*",
+        "ext-lzf": "*",
+        "ext-memprof": "*",
+        "ext-pdo_sqlite": "*",
+        "ext-seaslog": "*",
+        "ext-shmop": "*",
+        "ext-soap": "*",
+        "ext-sqlite3": "*",
+        "ext-stomp": "*",
+        "ext-sync": "*",
+        "ext-tcpwrap": "*",
+        "ext-timezonedb": "*",
+        "ext-vips": "*",
+        "ext-yaconf": "*",
+        "ext-yaf": "*",
+        "ext-yaml": "*",
+        "ext-xmlrpc": "*",
+        "ext-xsl": "*",
+        "ext-mongodb": "*",
+        "ext-redis": "*",
+        "ext-grpc": "*",
+        "ext-imagick": "*",
+        "ext-ev": "*",
+        "ext-event": "*",
+        "ext-oauth": "*",
+        "ext-raphf": "*",
+        "ext-pq": "*",
+        "ext-rdkafka": "*",
+        "ext-protobuf": "*",
+        "ext-stackdriver_debugger": "*",
+        "ext-opencensus": "*",
+        "ext-bitset": "*",
+        "ext-igbinary": "*",
+        "ext-iconv": "*"
+    }
+}
diff --git a/testapps/php74_extensions/phpunit.xml.dist b/testapps/php74_extensions/phpunit.xml.dist
new file mode 100644
index 00000000..8ded8984
--- /dev/null
+++ b/testapps/php74_extensions/phpunit.xml.dist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit bootstrap="./tests/bootstrap.php" colors="true">
+  <testsuites>
+    <testsuite>
+      <directory>tests</directory>
+    </testsuite>
+  </testsuites>
+</phpunit>
diff --git a/testapps/php74_extensions/tests/Blank300.png b/testapps/php74_extensions/tests/Blank300.png
new file mode 100644
index 00000000..e96fe466
Binary files /dev/null and b/testapps/php74_extensions/tests/Blank300.png differ
diff --git a/testapps/php74_extensions/tests/EvTest.php b/testapps/php74_extensions/tests/EvTest.php
new file mode 100644
index 00000000..cd556d33
--- /dev/null
+++ b/testapps/php74_extensions/tests/EvTest.php
@@ -0,0 +1,43 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class EvTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('ev'));
+    }
+
+    public function testTimer()
+    {
+        // after 5ms, update success
+        $w1 = new EvTimer(0.005, 0, function () {
+            $this->success = true;
+        });
+        Ev::run();
+
+        // sleep 10ms
+        usleep(10000);
+
+        Ev::stop();
+
+        $this->assertTrue($this->success);
+    }
+}
diff --git a/testapps/php74_extensions/tests/EventTest.php b/testapps/php74_extensions/tests/EventTest.php
new file mode 100644
index 00000000..1fe6535f
--- /dev/null
+++ b/testapps/php74_extensions/tests/EventTest.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class EventTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('event'));
+    }
+}
diff --git a/testapps/php74_extensions/tests/ExtensionsLoadedTest.php b/testapps/php74_extensions/tests/ExtensionsLoadedTest.php
new file mode 100644
index 00000000..6bf2f3f4
--- /dev/null
+++ b/testapps/php74_extensions/tests/ExtensionsLoadedTest.php
@@ -0,0 +1,57 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class ExtensionsLoadedTest extends TestCase
+{
+    /**
+     * @dataProvider extensions
+     */
+    public function testExtensionLoaded($extensionName)
+    {
+        $this->assertTrue(extension_loaded($extensionName));
+    }
+
+    public function extensions()
+    {
+        return [
+            ['amqp'],
+            ['bitset'],
+            ['couchbase'],
+            ['ds'],
+            ['eio'],
+            ['hprose'],
+            ['igbinary'],
+            ['jsond'],
+            ['krb5'],
+            ['lua'],
+            ['lzf'],
+            ['memprof'],
+            ['opencensus'],
+            ['seaslog'],
+            ['stackdriver_debugger'],
+            ['stomp'],
+            ['sync'],
+            ['tcpwrap'],
+            ['timezonedb'],
+            ['vips'],
+            ['yaconf'],
+            ['yaf'],
+            ['yaml']
+        ];
+    }
+}
diff --git a/testapps/php74_extensions/tests/GdTest.php b/testapps/php74_extensions/tests/GdTest.php
new file mode 100644
index 00000000..c663b508
--- /dev/null
+++ b/testapps/php74_extensions/tests/GdTest.php
@@ -0,0 +1,33 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class GdTest extends TestCase
+{
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('gd'));
+    }
+
+    public function testFreetypeSupport()
+    {
+        $this->assertTrue(
+            gd_info()['FreeType Support'],
+            'GD should support Freetype'
+        );
+    }
+}
diff --git a/testapps/php74_extensions/tests/GmpTest.php b/testapps/php74_extensions/tests/GmpTest.php
new file mode 100644
index 00000000..ed7e0821
--- /dev/null
+++ b/testapps/php74_extensions/tests/GmpTest.php
@@ -0,0 +1,34 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class GmpTest extends TestCase
+{
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('gmp'));
+    }
+
+    public function testGcd()
+    {
+        // basic test for greatest common denominator to see if gmp works
+        $this->assertEquals(
+            3,
+            gmp_intval(gmp_gcd("12", "21"))
+        );
+    }
+}
diff --git a/testapps/php74_extensions/tests/ImagickTest.php b/testapps/php74_extensions/tests/ImagickTest.php
new file mode 100644
index 00000000..4670b141
--- /dev/null
+++ b/testapps/php74_extensions/tests/ImagickTest.php
@@ -0,0 +1,35 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class ImagickTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('imagick'));
+    }
+
+    public function testLoadImage()
+    {
+        $image = new Imagick(__DIR__ . '/Blank300.png');
+        $dimensions = $image->getImageGeometry();
+        $this->assertEquals(300, $dimensions['width']);
+        $this->assertEquals(1, $dimensions['height']);
+    }
+}
diff --git a/testapps/php74_extensions/tests/OauthTest.php b/testapps/php74_extensions/tests/OauthTest.php
new file mode 100644
index 00000000..f0fa2572
--- /dev/null
+++ b/testapps/php74_extensions/tests/OauthTest.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class OauthTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('oauth'));
+    }
+}
diff --git a/testapps/php74_extensions/tests/PhalconTest.php b/testapps/php74_extensions/tests/PhalconTest.php
new file mode 100644
index 00000000..84ed26d1
--- /dev/null
+++ b/testapps/php74_extensions/tests/PhalconTest.php
@@ -0,0 +1,28 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class PhalconTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->markTestSkipped('Phalcon is not available for PHP 7.1 yet.');
+        // $this->assertTrue(extension_loaded('phalcon'));
+    }
+}
diff --git a/testapps/php74_extensions/tests/ProtobufTest.php b/testapps/php74_extensions/tests/ProtobufTest.php
new file mode 100644
index 00000000..0d9606e5
--- /dev/null
+++ b/testapps/php74_extensions/tests/ProtobufTest.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class ProtobufTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('protobuf'));
+    }
+}
diff --git a/testapps/php74_extensions/tests/RdkafkaTest.php b/testapps/php74_extensions/tests/RdkafkaTest.php
new file mode 100644
index 00000000..2e522a4e
--- /dev/null
+++ b/testapps/php74_extensions/tests/RdkafkaTest.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class RdkafkaTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('rdkafka'));
+    }
+}
diff --git a/testapps/php74_extensions/tests/bootstrap.php b/testapps/php74_extensions/tests/bootstrap.php
new file mode 100644
index 00000000..f76545c7
--- /dev/null
+++ b/testapps/php74_extensions/tests/bootstrap.php
@@ -0,0 +1,17 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+require_once __DIR__ . '/../vendor/autoload.php';
diff --git a/testapps/php74_extensions_legacy/.gitignore b/testapps/php74_extensions_legacy/.gitignore
new file mode 100644
index 00000000..94143827
--- /dev/null
+++ b/testapps/php74_extensions_legacy/.gitignore
@@ -0,0 +1 @@
+Dockerfile
diff --git a/testapps/php74_extensions_legacy/Dockerfile.in b/testapps/php74_extensions_legacy/Dockerfile.in
new file mode 100644
index 00000000..6e73ea21
--- /dev/null
+++ b/testapps/php74_extensions_legacy/Dockerfile.in
@@ -0,0 +1,15 @@
+# Copyright 2017 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM ${BASE_IMAGE}
diff --git a/testapps/php74_extensions_legacy/composer.json b/testapps/php74_extensions_legacy/composer.json
new file mode 100644
index 00000000..6040f7f5
--- /dev/null
+++ b/testapps/php74_extensions_legacy/composer.json
@@ -0,0 +1,41 @@
+{
+    "require": {
+        "php": "7.4.*",
+        "phpunit/phpunit": "^4.8.35",
+        "ext-amqp": "*",
+        "ext-bcmath": "*",
+        "ext-calendar": "*",
+        "ext-couchbase": "*",
+        "ext-ds": "*",
+        "ext-eio": "*",
+        "ext-exif": "*",
+        "ext-ftp": "*",
+        "ext-gd": "*",
+        "ext-gettext": "*",
+        "ext-hprose": "*",
+        "ext-intl": "*",
+        "ext-jsond": "*",
+        "ext-krb5": "*",
+        "ext-lua": "*",
+        "ext-lzf": "*",
+        "ext-memprof": "*",
+        "ext-pdo_sqlite": "*",
+        "ext-seaslog": "*",
+        "ext-shmop": "*",
+        "ext-soap": "*",
+        "ext-sqlite3": "*",
+        "ext-stomp": "*",
+        "ext-sync": "*",
+        "ext-tcpwrap": "*",
+        "ext-timezonedb": "*",
+        "ext-vips": "*",
+        "ext-yaconf": "*",
+        "ext-yaf": "*",
+        "ext-yaml": "*",
+        "ext-xmlrpc": "*",
+        "ext-xsl": "*",
+        "ext-bitset": "*",
+        "ext-igbinary": "*",
+        "ext-iconv": "*"
+    }
+}
diff --git a/testapps/php74_extensions_legacy/php.ini b/testapps/php74_extensions_legacy/php.ini
new file mode 100644
index 00000000..188e7335
--- /dev/null
+++ b/testapps/php74_extensions_legacy/php.ini
@@ -0,0 +1,13 @@
+extension=cassandra.so
+extension=ev.so
+extension=event.so
+extension=grpc.so
+extension=imagick.so
+extension=mongodb.so
+extension=oauth.so
+extension=opencensus.so
+extension=pq.so
+extension=protobuf.so
+extension=rdkafka.so
+extension=redis.so
+extension=stackdriver_debugger.so
\ No newline at end of file
diff --git a/testapps/php74_extensions_legacy/phpunit.xml.dist b/testapps/php74_extensions_legacy/phpunit.xml.dist
new file mode 100644
index 00000000..8ded8984
--- /dev/null
+++ b/testapps/php74_extensions_legacy/phpunit.xml.dist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit bootstrap="./tests/bootstrap.php" colors="true">
+  <testsuites>
+    <testsuite>
+      <directory>tests</directory>
+    </testsuite>
+  </testsuites>
+</phpunit>
diff --git a/testapps/php74_extensions_legacy/tests/Blank300.png b/testapps/php74_extensions_legacy/tests/Blank300.png
new file mode 100644
index 00000000..e96fe466
Binary files /dev/null and b/testapps/php74_extensions_legacy/tests/Blank300.png differ
diff --git a/testapps/php74_extensions_legacy/tests/EvTest.php b/testapps/php74_extensions_legacy/tests/EvTest.php
new file mode 100644
index 00000000..cd556d33
--- /dev/null
+++ b/testapps/php74_extensions_legacy/tests/EvTest.php
@@ -0,0 +1,43 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class EvTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('ev'));
+    }
+
+    public function testTimer()
+    {
+        // after 5ms, update success
+        $w1 = new EvTimer(0.005, 0, function () {
+            $this->success = true;
+        });
+        Ev::run();
+
+        // sleep 10ms
+        usleep(10000);
+
+        Ev::stop();
+
+        $this->assertTrue($this->success);
+    }
+}
diff --git a/testapps/php74_extensions_legacy/tests/EventTest.php b/testapps/php74_extensions_legacy/tests/EventTest.php
new file mode 100644
index 00000000..1fe6535f
--- /dev/null
+++ b/testapps/php74_extensions_legacy/tests/EventTest.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class EventTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('event'));
+    }
+}
diff --git a/testapps/php74_extensions_legacy/tests/ExtensionsLoadedTest.php b/testapps/php74_extensions_legacy/tests/ExtensionsLoadedTest.php
new file mode 100644
index 00000000..6bf2f3f4
--- /dev/null
+++ b/testapps/php74_extensions_legacy/tests/ExtensionsLoadedTest.php
@@ -0,0 +1,57 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class ExtensionsLoadedTest extends TestCase
+{
+    /**
+     * @dataProvider extensions
+     */
+    public function testExtensionLoaded($extensionName)
+    {
+        $this->assertTrue(extension_loaded($extensionName));
+    }
+
+    public function extensions()
+    {
+        return [
+            ['amqp'],
+            ['bitset'],
+            ['couchbase'],
+            ['ds'],
+            ['eio'],
+            ['hprose'],
+            ['igbinary'],
+            ['jsond'],
+            ['krb5'],
+            ['lua'],
+            ['lzf'],
+            ['memprof'],
+            ['opencensus'],
+            ['seaslog'],
+            ['stackdriver_debugger'],
+            ['stomp'],
+            ['sync'],
+            ['tcpwrap'],
+            ['timezonedb'],
+            ['vips'],
+            ['yaconf'],
+            ['yaf'],
+            ['yaml']
+        ];
+    }
+}
diff --git a/testapps/php74_extensions_legacy/tests/GdTest.php b/testapps/php74_extensions_legacy/tests/GdTest.php
new file mode 100644
index 00000000..c663b508
--- /dev/null
+++ b/testapps/php74_extensions_legacy/tests/GdTest.php
@@ -0,0 +1,33 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class GdTest extends TestCase
+{
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('gd'));
+    }
+
+    public function testFreetypeSupport()
+    {
+        $this->assertTrue(
+            gd_info()['FreeType Support'],
+            'GD should support Freetype'
+        );
+    }
+}
diff --git a/testapps/php74_extensions_legacy/tests/GmpTest.php b/testapps/php74_extensions_legacy/tests/GmpTest.php
new file mode 100644
index 00000000..ed7e0821
--- /dev/null
+++ b/testapps/php74_extensions_legacy/tests/GmpTest.php
@@ -0,0 +1,34 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class GmpTest extends TestCase
+{
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('gmp'));
+    }
+
+    public function testGcd()
+    {
+        // basic test for greatest common denominator to see if gmp works
+        $this->assertEquals(
+            3,
+            gmp_intval(gmp_gcd("12", "21"))
+        );
+    }
+}
diff --git a/testapps/php74_extensions_legacy/tests/ImagickTest.php b/testapps/php74_extensions_legacy/tests/ImagickTest.php
new file mode 100644
index 00000000..4670b141
--- /dev/null
+++ b/testapps/php74_extensions_legacy/tests/ImagickTest.php
@@ -0,0 +1,35 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class ImagickTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('imagick'));
+    }
+
+    public function testLoadImage()
+    {
+        $image = new Imagick(__DIR__ . '/Blank300.png');
+        $dimensions = $image->getImageGeometry();
+        $this->assertEquals(300, $dimensions['width']);
+        $this->assertEquals(1, $dimensions['height']);
+    }
+}
diff --git a/testapps/php74_extensions_legacy/tests/LibSodiumTest.php b/testapps/php74_extensions_legacy/tests/LibSodiumTest.php
new file mode 100644
index 00000000..9f2ac230
--- /dev/null
+++ b/testapps/php74_extensions_legacy/tests/LibSodiumTest.php
@@ -0,0 +1,32 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class LibsodiumTest extends TestCase
+{
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('sodium'));
+    }
+
+    public function testLoadImage()
+    {
+        $re = new ReflectionExtension('sodium');
+        $libsodiumVersion = $re->getVersion();
+        $this->assertTrue(version_compare($libsodiumVersion, '2.0.0', '>='));
+    }
+}
diff --git a/testapps/php74_extensions_legacy/tests/OauthTest.php b/testapps/php74_extensions_legacy/tests/OauthTest.php
new file mode 100644
index 00000000..f0fa2572
--- /dev/null
+++ b/testapps/php74_extensions_legacy/tests/OauthTest.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class OauthTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('oauth'));
+    }
+}
diff --git a/testapps/php74_extensions_legacy/tests/PhalconTest.php b/testapps/php74_extensions_legacy/tests/PhalconTest.php
new file mode 100644
index 00000000..84ed26d1
--- /dev/null
+++ b/testapps/php74_extensions_legacy/tests/PhalconTest.php
@@ -0,0 +1,28 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class PhalconTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->markTestSkipped('Phalcon is not available for PHP 7.1 yet.');
+        // $this->assertTrue(extension_loaded('phalcon'));
+    }
+}
diff --git a/testapps/php74_extensions_legacy/tests/ProtobufTest.php b/testapps/php74_extensions_legacy/tests/ProtobufTest.php
new file mode 100644
index 00000000..0d9606e5
--- /dev/null
+++ b/testapps/php74_extensions_legacy/tests/ProtobufTest.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class ProtobufTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('protobuf'));
+    }
+}
diff --git a/testapps/php74_extensions_legacy/tests/RdkafkaTest.php b/testapps/php74_extensions_legacy/tests/RdkafkaTest.php
new file mode 100644
index 00000000..2e522a4e
--- /dev/null
+++ b/testapps/php74_extensions_legacy/tests/RdkafkaTest.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+
+class RdkafkaTest extends TestCase
+{
+    private $success = false;
+
+    public function testExtensionLoaded()
+    {
+        $this->assertTrue(extension_loaded('rdkafka'));
+    }
+}
diff --git a/testapps/php74_extensions_legacy/tests/bootstrap.php b/testapps/php74_extensions_legacy/tests/bootstrap.php
new file mode 100644
index 00000000..f76545c7
--- /dev/null
+++ b/testapps/php74_extensions_legacy/tests/bootstrap.php
@@ -0,0 +1,17 @@
+<?php
+/**
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+require_once __DIR__ . '/../vendor/autoload.php';
diff --git a/testapps/php_default/php_default.yaml b/testapps/php_default/php_default.yaml
index 2c2d21e6..626855fe 100644
--- a/testapps/php_default/php_default.yaml
+++ b/testapps/php_default/php_default.yaml
@@ -3,7 +3,7 @@ schemaVersion: "1.0.0"
 commandTests:
   - name: "version"
     command: ["/opt/php/bin/php", "-v"]
-    expectedOutput: ["PHP 7\\.3.*"]
+    expectedOutput: ["PHP 7\\.4.*"]
 
   - name: "path"
     command: ["printenv", "PATH"]