3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($a) { $a = 'ssss'; } $b = '1111'; foo(&$b); var_Dump($b);

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)
7.0.00.0200.07020.07
5.6.160.0000.05320.39
5.6.150.0070.05718.25
5.6.140.0070.08318.13
5.6.130.0030.08018.25
5.6.120.0030.05021.12
5.6.110.0170.07320.86
5.6.100.0100.08020.98
5.6.90.0030.08720.95
5.6.80.0130.07320.29
5.5.300.0000.04018.03
5.5.290.0000.05718.03
5.5.280.0100.03720.80
5.5.270.0100.03720.67
5.5.260.0030.04720.76
5.5.250.0070.08020.50
5.5.240.4400.03720.24

preferences:
142.69 ms | 939 KiB | 8 Q