3v4l.org

run code in 300+ PHP versions simultaneously
<?php var x=array(1,2,3,4); unset(x,1); var_dump(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)
7.0.20.0200.09020.09
7.0.10.0100.08020.19
7.0.00.0030.09020.15
5.6.170.0300.05720.52
5.6.160.0070.07720.62
5.6.150.0030.08018.17
5.6.140.0130.06018.15
5.6.130.0000.05318.18
5.6.120.0100.06721.11
5.6.110.0030.05321.11
5.6.100.0130.07320.98
5.6.90.0070.05720.99
5.6.80.0070.08320.48
5.5.310.0130.05320.33
5.5.300.0100.08018.08
5.5.290.0030.09018.01
5.5.280.0000.06020.97
5.5.270.0070.05020.84
5.5.260.0170.07020.95
5.5.250.0070.06720.54
5.5.240.0070.06320.25

preferences:
144.98 ms | 1398 KiB | 7 Q