3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo{} $foo = new Foo(); var_dump($foo->goo);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Warning: Undefined property: Foo::$goo in /in/FqQiB on line 7 NULL
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined property: Foo::$goo in /in/FqQiB on line 7 NULL
Output for 7.3.32 - 7.3.33
NULL
preferences:
183.47 ms | 401 KiB | 292 Q