3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo {} $foo = unserialize('O:3:"Foo":1:{s:3:"bar";i:42;}'); var_dump($foo);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Creation of dynamic property Foo::$bar is deprecated in /in/BLgSf on line 4 object(Foo)#1 (1) { ["bar"]=> int(42) }
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28
object(Foo)#1 (1) { ["bar"]=> int(42) }
preferences:
114.35 ms | 402 KiB | 121 Q