3v4l.org

run code in 300+ PHP versions simultaneously
<?php // This is fine. class Foo { public $prop; } class FooChild extends Foo { public mixed $prop; }

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0130.00716.56
8.3.50.0120.01018.88
preferences:
133.58 ms | 993 KiB | 7 Q