diff --git a/be/.phpcs.xml b/be/.phpcs.xml
index 0df55239..9ebf05dd 100644
--- a/be/.phpcs.xml
+++ b/be/.phpcs.xml
@@ -4,6 +4,7 @@
         <!-- https://github.com/squizlabs/PHP_CodeSniffer/issues/3291 -->
         <exclude name="Squiz.Functions.MultiLineFunctionDeclaration.BraceOnSameLine"/>
         <exclude name="Squiz.WhiteSpace.ScopeClosingBrace.ContentBefore"/>
+        <exclude name="PSR12.ControlStructures.ControlStructureSpacing" />
     </rule>
     <arg name="extensions" value="php" />
     <!-- https://github.com/squizlabs/PHP_CodeSniffer/issues/2242 -->
diff --git a/be/phpcs.xml.dist b/be/phpcs.xml.dist
deleted file mode 100644
index 89195e2b..00000000
--- a/be/phpcs.xml.dist
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-
-<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="vendor/squizlabs/php_codesniffer/phpcs.xsd">
-
-    <arg name="basepath" value="."/>
-    <arg name="cache" value=".phpcs-cache"/>
-    <arg name="colors"/>
-    <arg name="extensions" value="php"/>
-
-    <rule ref="PSR12"/>
-
-    <file>bin/</file>
-    <file>config/</file>
-    <file>public/</file>
-    <file>src/</file>
-    <file>tests/</file>
-
-</ruleset>
diff --git a/be/src/Controller/PostsController.php b/be/src/Controller/PostsController.php
index 1c32f3b1..461da3a6 100644
--- a/be/src/Controller/PostsController.php
+++ b/be/src/Controller/PostsController.php
@@ -50,7 +50,8 @@ public function __construct(
     public function query(Request $request): array
     {
         $this->validator->validate($request->query->all(), new Assert\Collection([
-            'cursor' => new Assert\Optional(new Assert\Regex( // https://stackoverflow.com/questions/475074/regex-to-parse-or-validate-base64-data
+            'cursor' => new Assert\Optional(new Assert\Regex(
+                // https://stackoverflow.com/questions/475074/regex-to-parse-or-validate-base64-data
                 // (,|$)|,){5,6} means allow at most 5~6 parts of base64 segment or empty string to exist
                 '/^(([A-Za-z0-9-_]{4})*([A-Za-z0-9-_]{2,3})(,|$)|,){5,6}$/',
             )),
diff --git a/be/src/EventListener/SerializeToJson.php b/be/src/EventListener/SerializeToJson.php
index 014615e8..5b600d86 100644
--- a/be/src/EventListener/SerializeToJson.php
+++ b/be/src/EventListener/SerializeToJson.php
@@ -7,7 +7,9 @@
 use Symfony\Component\HttpKernel\Event\ViewEvent;
 use Symfony\Component\Serializer\SerializerInterface;
 
-#[AsEventListener(priority: -129)] // https://github.com/symfony/twig-bridge/blob/d63fde6a6142ffbab5fe6ee252b668b9485bfc0d/EventListener/TemplateAttributeListener.php#L66
+// phpcs:disable Generic.Files.LineLength
+// https://github.com/symfony/twig-bridge/blob/d63fde6a6142ffbab5fe6ee252b668b9485bfc0d/EventListener/TemplateAttributeListener.php#L66
+#[AsEventListener(priority: -129)]
 readonly class SerializeToJson
 {
     public function __construct(private SerializerInterface $serializer) {}
diff --git a/be/src/PostsQuery/BaseQuery.php b/be/src/PostsQuery/BaseQuery.php
index 2c7ecb19..94872988 100644
--- a/be/src/PostsQuery/BaseQuery.php
+++ b/be/src/PostsQuery/BaseQuery.php
@@ -210,13 +210,15 @@ static function (string $postIDName) use ($result): array {
                 ->where('t.pid IN (:pids)')->setParameter('pids', $allRepliesId)
                 ->getQuery()->getResult())
             ->mapWithKeys(fn(ReplyContent $content) => [$content->getPid() => $content->getContent()]);
-        $replies->each(fn(Reply $reply) => $reply->setContent($replyContents->get($reply->getPid())));
+        $replies->each(fn(Reply $reply) =>
+            $reply->setContent($replyContents->get($reply->getPid())));
 
         $subReplyContents = collect($this->postRepositoryFactory->newSubReplyContent($fid)->createQueryBuilder('t')
                 ->where('t.spid IN (:spids)')->setParameter('spids', $spids)
                 ->getQuery()->getResult())
             ->mapWithKeys(fn(SubReplyContent $content) => [$content->getSpid() => $content->getContent()]);
-        $subReplies->each(fn(SubReply $subReply) => $subReply->setContent($subReplyContents->get($subReply->getSpid())));
+        $subReplies->each(fn(SubReply $subReply) =>
+            $subReply->setContent($subReplyContents->get($subReply->getSpid())));
         $this->stopwatch->stop('parsePostContentProtoBufBytes');
 
         return [
diff --git a/be/src/PostsQuery/SearchQuery.php b/be/src/PostsQuery/SearchQuery.php
index b5734a0b..64fe7520 100644
--- a/be/src/PostsQuery/SearchQuery.php
+++ b/be/src/PostsQuery/SearchQuery.php
@@ -111,6 +111,7 @@ static function (QueryBuilder $newQueryWhenCacheMiss) use (&$outCachedUserQueryR
             'tid', 'pid', 'spid',
             'authorUid', 'authorExpGrade', 'latestReplierUid',
             'threadViewCount', 'threadShareCount', 'threadReplyCount', 'replySubReplyCount' =>
+                // phpcs:disable Generic.WhiteSpace.ScopeIndent
                 match ($sub['range']) {
                     'IN' => $query->andWhere("t.$fieldNameOfNumericParams $not IN (:$sqlParamName)")
                         ->setParameter($sqlParamName, explode(',', $value)),
@@ -123,7 +124,13 @@ static function (QueryBuilder $newQueryWhenCacheMiss) use (&$outCachedUserQueryR
                 },
             // textMatch
             'threadTitle', 'postContent' =>
-                self::applyTextMatchParamOnQuery($query, $name === 'threadTitle' ? 'title' : 'content', $value, $sub, $sqlParamName),
+                self::applyTextMatchParamOnQuery(
+                    $query,
+                    $name === 'threadTitle' ? 'title' : 'content',
+                    $value,
+                    $sub,
+                    $sqlParamName,
+                ),
             // dateTimeRange
             'postedAt', 'latestReplyPostedAt' => $whereBetween($name),
             // array
diff --git a/be/tests/PostsQuery/BaseQueryTest.php b/be/tests/PostsQuery/BaseQueryTest.php
index 919c1208..4273c574 100644
--- a/be/tests/PostsQuery/BaseQueryTest.php
+++ b/be/tests/PostsQuery/BaseQueryTest.php
@@ -2,7 +2,6 @@
 
 namespace App\Tests\PostsQuery;
 
-use App\Entity\Post\Post;
 use App\Entity\Post\Reply;
 use App\Entity\Post\SubReply;
 use App\Entity\Post\Thread;