3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace CParent { class Helper{} class Test{ /** * @var Helper */ public $helper; public function __construnct() { $this->helper = new Helper(); } } } namespace Child { class Helper{} class Test extends \CParent\Test {} } namespace \ { $qwe = new Child\Test(); var_dump($qwe->helper); }

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)
5.4.290.0370.04719.26
5.4.280.0230.04718.99
5.4.270.0330.04319.06
5.4.260.0300.04719.10
5.4.250.0370.07018.96
5.4.240.0430.04319.22
5.4.230.0430.06019.17
5.4.220.0370.05319.19
5.4.210.0330.06718.98
5.4.200.0330.04318.91
5.4.190.0130.04319.11
5.4.180.0230.04019.04
5.4.170.0370.06719.14
5.4.160.0430.06019.25
5.4.150.0430.06019.13
5.4.140.0200.03716.40
5.4.130.0270.05316.49
5.4.120.0400.02316.39
5.4.110.0370.07316.61
5.4.100.0370.05016.57
5.4.90.0270.04016.51
5.4.80.0300.07316.56
5.4.70.0300.03316.47
5.4.60.0230.04016.61
5.4.50.0370.05016.62
5.4.40.0330.05016.49
5.4.30.0330.06716.48
5.4.20.0300.07016.32
5.4.10.0470.05716.30
5.4.00.0300.05315.70
5.3.280.0300.07014.65
5.3.270.0270.07314.60
5.3.260.0300.06014.65
5.3.250.0330.03314.68
5.3.240.0170.03714.50
5.3.230.0300.06314.60
5.3.220.0270.03714.53
5.3.210.0270.04714.62
5.3.200.0430.05314.62
5.3.190.0230.04014.71
5.3.180.0300.05314.56
5.3.170.0470.04714.58
5.3.160.0330.05014.59
5.3.150.0370.06714.45
5.3.140.0400.05014.61
5.3.130.0470.05314.56
5.3.120.0470.06314.56
5.3.110.0300.06314.55
5.3.100.0330.07013.93
5.3.90.0330.06714.07
5.3.80.0400.06313.98
5.3.70.0370.05714.09
5.3.60.0430.03713.97
5.3.50.0400.06313.84
5.3.40.0330.07314.00
5.3.30.0370.06713.95
5.3.20.0300.04013.77
5.3.10.0300.05013.73
5.3.00.0330.07013.61

preferences:
140.99 ms | 1394 KiB | 7 Q