MNT Update php versions

.travis.yml

@@ -6,7 +6,7 @@ cache:
   directories:
     - $HOME/.composer/cache/files
 
-php: [5.3, 5.4, 5.5, 5.6, 7.0, 7.1, hhvm]
+php: [7.3, 7.4, 8.0]
 
 env:
   - WEBDRIVER=selenium
@@ -17,11 +17,11 @@ matrix:
     - env: WEBDRIVER=phantomjs PHANTOM_VERSION=2
   fast_finish: true
   include:
-    - php: 5.5
+    - php: 7.3
       env: WEBDRIVER=phantomjs
-    - php: 5.5
+    - php: 7.4
       env: WEBDRIVER=phantomjs PHANTOM_VERSION=2
-    - php: 7.0
+    - php: 8.0
       env: WEBDRIVER=selenium-remote
       sudo: required
       services:
@@ -32,8 +32,8 @@ before_script:
 
   - composer install
 
-  # Start a webserver for web fixtures. Force using PHP 5.6 to be able to run it on PHP 5.3 and HHVM jobs too
-  - MINK_PHP_BIN=~/.phpenv/versions/5.6/bin/php vendor/bin/mink-test-server > /dev/null 2>&1 &
+  # Start a webserver for web fixtures.
+  - MINK_PHP_BIN=~/.phpenv/versions/7.3/bin/php vendor/bin/mink-test-server > /dev/null 2>&1 &
 
 script: phpunit -v --coverage-clover=coverage.clover