3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace Foo { class Baz { } } namespace Bar { class Baz { } } namespace { if (true) { use Foo\Baz; } else { use Bar\Baz; } $baz = new Baz(); var_dump(get_class($baz)); }

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)
5.4.290.0230.04019.26
5.4.280.0200.07019.03
5.4.270.0200.04718.98
5.4.260.0270.04019.23
5.4.250.0200.05019.21
5.4.240.0430.06718.98
5.4.230.0200.04019.15
5.4.220.0200.05718.89
5.4.210.0200.03719.21
5.4.200.0400.04719.07
5.4.190.0200.06719.30
5.4.180.0300.03719.23
5.4.170.0300.05019.08
5.4.160.0100.04318.89
5.4.150.0230.05719.07
5.4.140.0200.05016.70
5.4.130.0200.03316.49
5.4.120.0130.03716.38
5.4.110.0130.03716.33
5.4.100.0170.04316.56
5.4.90.0130.03716.24
5.4.80.0200.04316.48
5.4.70.0130.03716.55
5.4.60.0130.03716.34
5.4.50.0300.03716.33
5.4.40.0170.05016.43
5.4.30.0100.04316.53
5.4.20.0170.03316.51
5.4.10.0130.03716.38
5.4.00.0100.04015.87
5.3.280.0130.03314.64
5.3.270.0000.04314.60
5.3.260.0130.04014.70
5.3.250.0200.04714.61
5.3.240.0330.03314.69
5.3.230.0170.04014.60
5.3.220.0200.04714.48
5.3.210.0300.06314.81
5.3.200.0270.04014.57
5.3.190.0230.07314.54
5.3.180.0200.03314.64
5.3.170.0170.07314.70
5.3.160.0270.03714.59
5.3.150.0200.03314.64
5.3.140.0200.04314.41
5.3.130.0130.04014.54
5.3.120.0300.05714.61
5.3.110.0130.05014.66
5.3.100.0270.05714.02
5.3.90.0100.05714.03
5.3.80.0270.03314.03
5.3.70.0170.04313.92
5.3.60.0130.07014.00
5.3.50.0230.06313.85
5.3.40.0270.06313.85
5.3.30.0270.06313.98
5.3.20.0270.05013.62
5.3.10.0200.04013.63
5.3.00.0200.06713.53

preferences:
139.54 ms | 1386 KiB | 7 Q