3v4l.org

run code in 500+ PHP versions simultaneously
<?php interface i { public $p { get;} } class x implements i { public $p = 1 { get => $this->p;} } echo (new x)->p;

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)
8.5.20.0100.01019.53
8.4.80.0110.00919.43
8.3.50.0060.00216.73
preferences:
40 ms | 496 KiB | 4 Q