3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public string $foo; } class B extends A { #[Override] public string $foo; }

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)
8.5.10.0310.00616.21
8.3.290.0230.00818.32
8.2.300.0230.00917.87
preferences:
143.16 ms | 1005 KiB | 7 Q