Update TcpConnection.php

Connection/TcpConnection.php

@@ -890,11 +890,6 @@ class TcpConnection extends ConnectionInterface
         Worker::$globalEvent->del($this->_socket, EventInterface::EV_WRITE);
         // Close socket.
         @fclose($this->_socket);
-        // Remove from worker->connections.
-        if ($this->worker) {
-            unset($this->worker->connections[$this->_id]);
-        }
-        unset(static::$connections[$this->_id]);
         $this->_status = self::STATUS_CLOSED;
         // Try to emit onClose callback.
         if ($this->onClose) {
@@ -923,6 +918,11 @@ class TcpConnection extends ConnectionInterface
         if ($this->_status === self::STATUS_CLOSED) {
             // Cleaning up the callback to avoid memory leaks.
             $this->onMessage = $this->onClose = $this->onError = $this->onBufferFull = $this->onBufferDrain = null;
+            // Remove from worker->connections.
+            if ($this->worker) {
+                unset($this->worker->connections[$this->_id]);
+            }
+            unset(static::$connections[$this->_id]);
         }
     }