3v4l.org

run code in 300+ PHP versions simultaneously
<?php class T { public $a = pack("H*", "7065726B656C65"); public $b = pack("H*", "73616174616E61"); } $t = new T(); var_dump($t->a); var_dump($t->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)
7.0.20.0130.05020.08
7.0.10.0070.05320.15
7.0.00.0070.05720.22
5.6.170.0170.06720.53
5.6.160.0070.03720.39
5.6.150.0070.03718.18
5.6.140.0000.04018.29
5.6.130.0070.04018.21
5.6.120.0070.03721.00
5.6.110.0030.05021.13
5.6.100.0200.07721.11
5.6.90.0100.08320.99
5.6.80.0070.05020.37
5.5.310.0300.06720.29
5.5.300.0000.04317.97
5.5.290.0070.08018.02
5.5.280.0030.04720.68
5.5.270.0000.04320.88
5.5.260.0070.06020.67
5.5.250.0030.07320.53
5.5.240.0200.07320.25

preferences:
140.29 ms | 1394 KiB | 7 Q