3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface A { function x(self $o); } class B implements A { function x(self $o) { return $o; } } class C extends B { } $c = new C(); var_dump($c->x($));

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)
7.0.00.0070.08320.04
5.6.160.0100.03720.61
5.6.150.0130.05718.18
5.6.140.0130.04718.13
5.6.130.0030.04018.15
5.6.120.0130.06720.99
5.6.110.0070.05321.11
5.6.100.0030.04021.04
5.6.90.0030.04720.88
5.6.80.0100.08020.29
5.5.300.0130.07018.08
5.5.290.0030.04017.98
5.5.280.0100.06720.77
5.5.270.0170.07020.93
5.5.260.0100.08320.87
5.5.250.0030.04020.69
5.5.240.0300.07020.27

preferences:
140.11 ms | 1394 KiB | 7 Q