3v4l.org

run code in 300+ PHP versions simultaneously
<?php foo(unset($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)
7.0.20.0170.04020.16
7.0.10.0030.04720.12
7.0.00.0030.08720.12
5.6.170.0200.03720.56
5.6.160.0230.05020.55
5.6.150.0130.06018.18
5.6.140.0030.04018.23
5.6.130.0070.08318.18
5.6.120.0130.07320.89
5.6.110.0100.08021.02
5.6.100.0200.07020.97
5.6.90.0030.08020.98
5.6.80.0000.08020.40
5.5.310.0300.06020.31
5.5.300.0070.07317.92
5.5.290.0030.08017.94
5.5.280.0000.04320.87
5.5.270.0170.07720.83
5.5.260.0000.09020.88
5.5.250.0100.06720.77
5.5.240.0170.07320.16

preferences:
141.11 ms | 1394 KiB | 7 Q