3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace { function foo($n) { return $n; } } namespace A { use function foo; function foo($n) { return foo(2*$n); } namespace A { var_dump(foo(1)); }

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)
7.0.00.0000.09319.99
5.6.160.0030.04020.46
5.6.150.0170.07018.14
5.6.140.0030.08318.11
5.6.130.0130.04018.21
5.6.120.0130.08021.00
5.6.110.0100.05020.99
5.6.100.0230.05721.03
5.6.90.0100.08021.11
5.6.80.0170.03320.41
5.5.300.0130.07318.09
5.5.290.0100.03318.01
5.5.280.0030.06020.77
5.5.270.0100.08320.80
5.5.260.0070.06020.84
5.5.250.0130.07720.78
5.5.240.0270.07020.07

preferences:
140.76 ms | 1394 KiB | 7 Q