3v4l.org

run code in 500+ PHP versions simultaneously
<?php class UserPref { public $theme; public $lang; } $obj = new UserPref(); $obj->theme = new Error("test", 0); // Error 对象有 __toString $obj->lang = "zh"; echo base64_encode(serialize($obj)); ?>
Output for 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
Tzo4OiJVc2VyUHJlZiI6Mjp7czo1OiJ0aGVtZSI7Tzo1OiJFcnJvciI6Nzp7czoxMDoiACoAbWVzc2FnZSI7czo0OiJ0ZXN0IjtzOjEzOiIARXJyb3IAc3RyaW5nIjtzOjA6IiI7czo3OiIAKgBjb2RlIjtpOjA7czo3OiIAKgBmaWxlIjtzOjk6Ii9pbi9VUHZNcCI7czo3OiIAKgBsaW5lIjtpOjc7czoxMjoiAEVycm9yAHRyYWNlIjthOjA6e31zOjE1OiIARXJyb3IAcHJldmlvdXMiO047fXM6NDoibGFuZyI7czoyOiJ6aCI7fQ==
preferences:
57.45 ms | 769 KiB | 4 Q