3v4l.org

run code in 300+ PHP versions simultaneously
<?php class a { public function change() { $this = new b(); } } class b { } $class = new a(); var_dump(get_class($class)); $class->change(); var_dump(get_class($class));

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)
5.4.260.0130.07318.95
5.4.250.0030.06018.73
5.4.240.0170.07018.99
5.4.230.0070.06019.08
5.4.220.0030.06718.92
5.4.210.0070.06018.75
5.4.200.0170.06718.84
5.4.190.0130.06318.89
5.4.180.0070.05318.94
5.4.170.0100.07018.78
5.4.160.0070.07318.75
5.4.150.0070.06018.83
5.4.140.0100.06016.57
5.4.130.0170.06016.56
5.4.120.0030.05716.39
5.4.110.0200.06016.32
5.4.100.0130.05016.35
5.4.90.0030.06016.40
5.4.80.0130.05316.33
5.4.70.0070.07016.39
5.4.60.0130.06716.24
5.4.50.0030.05016.40
5.4.40.0100.04716.29
5.4.30.0130.04016.39
5.4.20.0100.07016.52
5.4.10.0030.05716.50
5.4.00.0130.04315.90
5.3.280.0100.05314.68
5.3.270.0100.07314.61
5.3.260.0130.05714.59
5.3.250.0070.05714.76
5.3.240.0130.06014.69
5.3.230.0070.05014.68
5.3.220.0170.05714.65
5.3.210.0100.06014.56
5.3.200.0030.05314.64
5.3.190.0030.05314.65
5.3.180.0130.04714.53
5.3.170.0100.05314.63
5.3.160.0100.06314.55
5.3.150.0170.04314.39
5.3.140.0100.04714.71
5.3.130.0070.07714.51
5.3.120.0100.05014.38
5.3.110.0200.03714.55
5.3.100.0070.05314.17
5.3.90.0030.05314.23
5.3.80.0130.05714.02
5.3.70.0070.06314.10
5.3.60.0070.07013.98
5.3.50.0200.04314.04
5.3.40.0130.05314.17
5.3.30.0070.07313.90
5.3.20.0070.06713.78
5.3.10.0130.06713.86
5.3.00.0100.05313.85
5.2.170.0070.06011.36
5.2.160.0100.04011.14
5.2.150.0070.04011.00
5.2.140.0100.04311.12
5.2.130.0170.04011.18
5.2.120.0130.03311.19
5.2.110.0100.03711.07
5.2.100.0000.04311.00
5.2.90.0030.04011.18
5.2.80.0000.04711.30
5.2.70.0030.04311.14
5.2.60.0030.04711.13
5.2.50.0030.04010.98
5.2.40.0030.04010.98
5.2.30.0070.04010.92
5.2.20.0200.04011.12
5.2.10.0000.04310.86
5.2.00.0130.03310.70
5.1.60.0070.0479.99
5.1.50.0030.03310.06
5.1.40.0030.03710.02
5.1.30.0070.05010.33
5.1.20.0070.03310.43
5.1.10.0070.03310.16
5.1.00.0100.03710.06
5.0.50.0070.0278.76
5.0.40.0070.0378.50
5.0.30.0030.0478.22
5.0.20.0030.0308.28
5.0.10.0000.0308.14
5.0.00.0000.0508.15
4.4.90.0070.0175.84
4.4.80.0000.0235.80
4.4.70.0030.0205.79
4.4.60.0030.0205.84
4.4.50.0030.0205.87
4.4.40.0030.0335.86
4.4.30.0000.0235.80
4.4.20.0000.0235.89
4.4.10.0030.0205.88
4.4.00.0030.0435.87
4.3.110.0070.0275.78
4.3.100.0070.0175.80
4.3.90.0000.0335.73
4.3.80.0000.0335.75
4.3.70.0030.0205.76
4.3.60.0000.0235.89
4.3.50.0000.0235.73
4.3.40.0070.0375.68
4.3.30.0000.0275.04
4.3.20.0030.0275.04
4.3.10.0000.0275.04
4.3.00.0030.0204.53

preferences:
143.68 ms | 1394 KiB | 7 Q