diff --git a/function.php b/function.php
index 28561c7c..0f70e6f3 100644
--- a/function.php
+++ b/function.php
@@ -671,8 +671,8 @@ if (!function_exists('swoole_serialize')) {
 	 */
 	function swoole_serialize($data): string
 	{
+		var_dump(class_exists('swoole_serialize'), \swoole_serialize::pack($data));
 		if (class_exists('swoole_serialize')) {
-			var_dump(\swoole_serialize::pack($data));
 			return \swoole_serialize::pack($data);
 		} else {
 			return serialize($data);