diff --git a/src/Sandbox.php b/src/Sandbox.php
index 944d7ef..7b4fe64 100644
--- a/src/Sandbox.php
+++ b/src/Sandbox.php
@@ -129,7 +129,7 @@ protected function getHttp()
     public function getApplication()
     {
         $snapshot = $this->getSnapshot();
-        if ($snapshot instanceOf Container) {
+        if ($snapshot instanceof Container) {
             return $snapshot;
         }
 
diff --git a/src/Table.php b/src/Table.php
index 3ce6bfa..b2327c7 100644
--- a/src/Table.php
+++ b/src/Table.php
@@ -70,4 +70,4 @@ public function __get($key)
     {
         return $this->get($key);
     }
-}
\ No newline at end of file
+}
diff --git a/src/Websocket.php b/src/Websocket.php
index bc8cdb1..95bea5f 100644
--- a/src/Websocket.php
+++ b/src/Websocket.php
@@ -227,7 +227,7 @@ public function eventExists(string $event)
     public function call(string $event, $data = null)
     {
         if (!$this->eventExists($event)) {
-            return null;
+            return;
         }
 
         // inject request param on connect event
diff --git a/src/coroutine/Context.php b/src/coroutine/Context.php
index 6ad4b37..4b73978 100644
--- a/src/coroutine/Context.php
+++ b/src/coroutine/Context.php
@@ -96,4 +96,4 @@ public static function getCoroutineId()
     {
         return Coroutine::getuid();
     }
-}
\ No newline at end of file
+}
diff --git a/src/coroutine/PDO.php b/src/coroutine/PDO.php
index f7aadb9..e1bf879 100644
--- a/src/coroutine/PDO.php
+++ b/src/coroutine/PDO.php
@@ -312,4 +312,4 @@ public function __destruct()
     {
         $this->client->close();
     }
-}
\ No newline at end of file
+}
diff --git a/src/coroutine/PDOStatement.php b/src/coroutine/PDOStatement.php
index 2877af5..030622e 100644
--- a/src/coroutine/PDOStatement.php
+++ b/src/coroutine/PDOStatement.php
@@ -251,4 +251,4 @@ public function fetchAll($fetchStyle = null, $fetchArgument = null, $ctorArgs =
 
         return $resultSet;
     }
-}
\ No newline at end of file
+}
diff --git a/src/coroutine/connector/Mysql.php b/src/coroutine/connector/Mysql.php
index e01ce6b..3d5dd3d 100644
--- a/src/coroutine/connector/Mysql.php
+++ b/src/coroutine/connector/Mysql.php
@@ -30,4 +30,4 @@ protected function isBreak($e): bool
 
         return parent::isBreak($e) || Str::contains($e->getMessage(), 'is closed');
     }
-}
\ No newline at end of file
+}
diff --git a/src/facade/Room.php b/src/facade/Room.php
index 1e89f85..b6d2c21 100644
--- a/src/facade/Room.php
+++ b/src/facade/Room.php
@@ -10,4 +10,4 @@ protected static function getFacadeClass()
     {
         return 'swoole.room';
     }
-}
\ No newline at end of file
+}
diff --git a/src/facade/Server.php b/src/facade/Server.php
index fbbfd9f..6f54a18 100644
--- a/src/facade/Server.php
+++ b/src/facade/Server.php
@@ -19,4 +19,4 @@ protected static function getFacadeClass()
     {
         return 'swoole.server';
     }
-}
\ No newline at end of file
+}
diff --git a/src/facade/Table.php b/src/facade/Table.php
index 0db7638..1f64781 100644
--- a/src/facade/Table.php
+++ b/src/facade/Table.php
@@ -11,7 +11,6 @@
 
 namespace think\swoole\facade;
 
-
 use think\Facade;
 
 /**
@@ -25,4 +24,4 @@ protected static function getFacadeClass()
     {
         return 'swoole.table';
     }
-}
\ No newline at end of file
+}
diff --git a/src/facade/Websocket.php b/src/facade/Websocket.php
index 33fd75f..dd5bd7f 100644
--- a/src/facade/Websocket.php
+++ b/src/facade/Websocket.php
@@ -10,4 +10,4 @@ protected static function getFacadeClass()
     {
         return 'swoole.websocket';
     }
-}
\ No newline at end of file
+}
diff --git a/src/resetters/ResetterContract.php b/src/resetters/ResetterContract.php
index 9ba6261..c5087d6 100644
--- a/src/resetters/ResetterContract.php
+++ b/src/resetters/ResetterContract.php
@@ -14,4 +14,4 @@ interface ResetterContract
      * @param Sandbox   $sandbox
      */
     public function handle(Container $app, Sandbox $sandbox);
-}
\ No newline at end of file
+}
diff --git a/src/websocket/HandlerContract.php b/src/websocket/HandlerContract.php
index 057cce8..f1804e5 100644
--- a/src/websocket/HandlerContract.php
+++ b/src/websocket/HandlerContract.php
@@ -11,7 +11,6 @@
 
 namespace think\swoole\websocket;
 
-
 use Swoole\Websocket\Frame;
 use think\Request;
 
@@ -40,4 +39,4 @@ public function onMessage(Frame $frame);
      * @param int $reactorId
      */
     public function onClose($fd, $reactorId);
-}
\ No newline at end of file
+}
diff --git a/src/websocket/Pusher.php b/src/websocket/Pusher.php
index fba6117..21cf127 100644
--- a/src/websocket/Pusher.php
+++ b/src/websocket/Pusher.php
@@ -276,4 +276,4 @@ public function push($payload): void
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/websocket/socketio/Packet.php b/src/websocket/socketio/Packet.php
index 04d0bb0..b3812bb 100644
--- a/src/websocket/socketio/Packet.php
+++ b/src/websocket/socketio/Packet.php
@@ -115,7 +115,7 @@ public static function getSocketType(string $packet)
         $type = $packet[0] ?? null;
 
         if (!array_key_exists($type, static::$socketTypes)) {
-            return null;
+            return;
         }
 
         return (int) $type;
@@ -134,14 +134,14 @@ public static function getPayload(string $packet)
         $start  = strpos($packet, '[');
 
         if ($start === false || substr($packet, -1) !== ']') {
-            return null;
+            return;
         }
 
         $data = substr($packet, $start, strlen($packet) - $start);
         $data = json_decode($data, true);
 
         if (is_null($data)) {
-            return null;
+            return;
         }
 
         return [
@@ -168,4 +168,4 @@ public static function isSocketType($packet, string $typeName)
 
         return static::getSocketType($packet) === $type;
     }
-}
\ No newline at end of file
+}
diff --git a/src/websocket/socketio/Parser.php b/src/websocket/socketio/Parser.php
index 9040c76..b8f7c12 100644
--- a/src/websocket/socketio/Parser.php
+++ b/src/websocket/socketio/Parser.php
@@ -48,4 +48,4 @@ public function decode($frame)
             'data'  => $payload['data'] ?? null,
         ];
     }
-}
\ No newline at end of file
+}