3v4l.org

run code in 300+ PHP versions simultaneously
<?php class a { public function __constructor() { $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)
5.4.260.0100.05018.90
5.4.250.0030.05318.96
5.4.240.0030.05319.09
5.4.230.0130.05019.01
5.4.220.0130.07718.93
5.4.210.0200.04318.88
5.4.200.0070.05718.84
5.4.190.0030.07718.83
5.4.180.0100.04718.96
5.4.170.0100.05018.93
5.4.160.0100.05018.71
5.4.150.0200.05019.00
5.4.140.0070.05016.37
5.4.130.0100.04716.52
5.4.120.0070.05016.36
5.4.110.0070.05016.48
5.4.100.0070.04716.61
5.4.90.0070.05316.61
5.4.80.0030.05316.51
5.4.70.0100.07716.38
5.4.60.0070.07316.32
5.4.50.0100.04316.32
5.4.40.0130.04716.50
5.4.30.0070.05316.48
5.4.20.0130.04016.34
5.4.10.0070.05016.44
5.4.00.0100.04315.84
5.3.280.0070.05014.75
5.3.270.0000.06314.43
5.3.260.0130.04714.44
5.3.250.0100.04714.43
5.3.240.0070.05314.63
5.3.230.0130.04314.56
5.3.220.0100.05014.63
5.3.210.0070.05314.39
5.3.200.0030.06014.74
5.3.190.0100.05014.74
5.3.180.0130.07014.64
5.3.170.0100.06314.64
5.3.160.0130.04314.66
5.3.150.0030.05314.56
5.3.140.0070.05314.55
5.3.130.0070.05314.61
5.3.120.0000.06014.63
5.3.110.0170.05014.77
5.3.100.0000.05714.01
5.3.90.0130.04714.17
5.3.80.0070.05013.98
5.3.70.0070.05314.09
5.3.60.0070.05313.99
5.3.50.0070.05014.01
5.3.40.0070.06013.86
5.3.30.0000.05313.97
5.3.20.0030.05313.52
5.3.10.0100.04713.71
5.3.00.0070.04713.62
5.2.170.0030.04311.23
5.2.160.0070.04011.00
5.2.150.0070.04711.22
5.2.140.0070.04311.23
5.2.130.0100.03311.26
5.2.120.0070.03710.93
5.2.110.0100.03311.10
5.2.100.0170.02711.25
5.2.90.0070.04010.92
5.2.80.0100.04011.13
5.2.70.0070.06311.14
5.2.60.0030.04310.95
5.2.50.0070.04311.17
5.2.40.0100.03310.95
5.2.30.0070.05011.18
5.2.20.0130.04011.04
5.2.10.0100.05010.82
5.2.00.0030.06010.93
5.1.60.0030.03710.19
5.1.50.0030.03310.06
5.1.40.0100.0279.80
5.1.30.0000.04010.55
5.1.20.0030.03710.33
5.1.10.0000.03710.03
5.1.00.0070.04710.16
5.0.50.0030.0338.69
5.0.40.0100.0208.46
5.0.30.0070.0438.17
5.0.20.0030.0278.02
5.0.10.0070.0278.22
5.0.00.0070.0378.17
4.4.90.0000.0235.84
4.4.80.0000.0235.80
4.4.70.0000.0235.82
4.4.60.0030.0205.75
4.4.50.0030.0235.86
4.4.40.0030.0475.91
4.4.30.0030.0205.75
4.4.20.0030.0305.90
4.4.10.0030.0235.87
4.4.00.0030.0375.86
4.3.110.0000.0335.83
4.3.100.0000.0235.78
4.3.90.0070.0175.77
4.3.80.0000.0435.77
4.3.70.0000.0235.71
4.3.60.0030.0305.76
4.3.50.0070.0175.73
4.3.40.0000.0375.69
4.3.30.0000.0304.89
4.3.20.0000.0274.89
4.3.10.0030.0234.89
4.3.00.0000.0235.61

preferences:
140.04 ms | 1394 KiB | 7 Q