3v4l.org

run code in 300+ PHP versions simultaneously
<?php &$arr = [1, 2, 3]; foreach ($arr as &$a); foreach ($arr as $a); print_r($arr);

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)
5.4.260.0170.04318.75
5.4.250.0100.05018.66
5.4.240.0070.05019.00
5.4.230.0070.05718.96
5.4.220.0030.06018.75
5.4.210.0030.08018.77
5.4.200.0130.04718.84
5.4.190.0170.04719.01
5.4.180.0170.05318.77
5.4.170.0230.04018.94
5.4.160.0130.04718.79
5.4.150.0130.05018.94
5.4.140.0130.04716.48
5.4.130.0000.06316.38
5.4.120.0130.04716.30
5.4.110.0030.05716.42
5.4.100.0100.04716.37
5.4.90.0130.05716.65
5.4.80.0030.05016.55
5.4.70.0070.05716.40
5.4.60.0100.04316.49
5.4.50.0130.06316.33
5.4.40.0100.04716.50
5.4.30.0100.05016.39
5.4.20.0130.05716.38
5.4.10.0070.05716.38
5.4.00.0130.05716.02
5.3.280.0030.07314.45
5.3.270.0030.05714.49
5.3.260.0100.05014.61
5.3.250.0100.04714.61
5.3.240.0100.05314.61
5.3.230.0170.04314.37
5.3.220.0070.07714.49
5.3.210.0130.05014.48
5.3.200.0070.05014.48
5.3.190.0130.05014.45
5.3.180.0170.04714.61
5.3.170.0070.05014.58
5.3.160.0100.05314.66
5.3.150.0070.05314.57
5.3.140.0100.04714.56
5.3.130.0070.05014.57
5.3.120.0130.05014.70
5.3.110.0130.04714.39
5.3.100.0130.04713.88
5.3.90.0070.04713.91
5.3.80.0170.04313.86
5.3.70.0070.05313.93
5.3.60.0200.04314.05
5.3.50.0030.06013.78
5.3.40.0100.05013.83
5.3.30.0030.05713.79
5.3.20.0130.06313.70
5.3.10.0230.05313.35
5.3.00.0170.06313.65
5.2.170.0070.05711.04
5.2.160.0100.03711.25
5.2.150.0030.06311.15
5.2.140.0170.05011.05
5.2.130.0000.06711.11
5.2.120.0130.05011.00
5.2.110.0200.07711.25
5.2.100.0070.06010.86
5.2.90.0070.04011.09
5.2.80.0030.04311.02
5.2.70.0100.04310.92
5.2.60.0030.04310.88
5.2.50.0030.04310.86
5.2.40.0070.04010.96
5.2.30.0100.04010.98
5.2.20.0100.05310.96
5.2.10.0130.03010.76
5.2.00.0030.04010.93
5.1.60.0030.0379.84
5.1.50.0130.0409.93
5.1.40.0100.03010.04
5.1.30.0070.05010.54
5.1.20.0000.04310.41
5.1.10.0000.04010.25
5.1.00.0070.04010.21
5.0.50.0000.0378.74
5.0.40.0030.0278.55
5.0.30.0000.0638.45
5.0.20.0030.0308.14
5.0.10.0030.0308.14
5.0.00.0100.0338.11
4.4.90.0030.0206.79
4.4.80.0030.0206.79
4.4.70.0070.0176.79
4.4.60.0070.0176.79
4.4.50.0070.0206.79
4.4.40.0100.0336.79
4.4.30.0030.0336.79
4.4.20.0000.0276.79
4.4.10.0000.0236.79
4.4.00.0030.0336.79
4.3.110.0030.0236.79
4.3.100.0000.0236.79
4.3.90.0000.0236.79
4.3.80.0030.0336.79
4.3.70.0070.0176.79
4.3.60.0070.0206.79
4.3.50.0070.0176.79
4.3.40.0030.0336.79
4.3.30.0000.0306.79
4.3.20.0070.0276.79
4.3.10.0130.0236.79
4.3.00.0000.0239.23

preferences:
143.32 ms | 1394 KiB | 7 Q