3v4l.org

run code in 500+ PHP versions simultaneously
<?php class Foo { public function __debugInfo() { return null; } } $f = new Foo; var_dump($f);

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)
8.5.30.0200.00316.73

preferences:
40.13 ms | 480 KiB | 5 Q