3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(string $bar = null) : null { // } var_dump(foo(123));

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)
7.0.10.0070.09320.20
7.0.00.0070.06320.18
5.6.160.0070.07720.47
5.6.150.0100.08318.25
5.6.140.0000.04718.15
5.6.130.0070.05718.12
5.6.120.0100.07020.98
5.6.110.0070.08321.11
5.6.100.0030.08321.00
5.6.90.0200.07020.96
5.6.80.0030.04020.51
5.5.300.0030.08717.92
5.5.290.0030.05318.04
5.5.280.0000.04720.73
5.5.270.0130.07720.77
5.5.260.0030.08720.79
5.5.250.0130.08020.71
5.5.240.0130.07720.01

preferences:
140.29 ms | 1394 KiB | 7 Q