3v4l.org

run code in 300+ PHP versions simultaneously
<?php $iterator = 10; $cat = array(1 => 'a',2 => 'b',3 => 'c'); foreach(&$cat as $k => $c) { if ($iterator < 15) { $cat[$iterator] = $iterator; $iterator++; } echo $c; } var_dump($cat);

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)
5.4.270.0070.06018.97
5.4.260.0170.04318.80
5.4.250.0030.08319.06
5.4.240.0170.05019.04
5.4.230.0070.07018.88
5.4.220.0130.07318.88
5.4.210.0030.06018.87
5.4.200.0270.04718.94
5.4.190.0030.06018.94
5.4.180.0130.08018.97
5.4.170.0130.06319.10
5.4.160.0130.05318.89
5.4.150.0100.05719.03
5.4.140.0100.05716.52
5.4.130.0170.04716.52
5.4.120.0070.05316.38
5.4.110.0130.07016.61
5.4.100.0130.06716.61
5.4.90.0170.04716.66
5.4.80.0030.05316.62
5.4.70.0100.07016.42
5.4.60.0270.05316.67
5.4.50.0100.07016.35
5.4.40.0100.05316.52
5.4.30.0030.06016.62
5.4.20.0200.06716.38
5.4.10.0170.06316.46
5.4.00.0100.07015.96
5.3.280.0070.06714.76
5.3.270.0200.05714.80
5.3.260.0130.06714.65
5.3.250.0130.05014.80
5.3.240.0130.05314.77
5.3.230.0130.05714.75
5.3.220.0200.06714.55
5.3.210.0070.07314.71
5.3.200.0100.06714.57
5.3.190.0070.07714.63
5.3.180.0130.07014.49
5.3.170.0130.05014.71
5.3.160.0100.06314.72
5.3.150.0130.05714.57
5.3.140.0070.06314.67
5.3.130.0100.05014.48
5.3.120.0130.07014.73
5.3.110.0170.05014.68
5.3.100.0100.06014.02
5.3.90.0270.05314.21
5.3.80.0070.05014.11
5.3.70.0100.05313.99
5.3.60.0070.05014.09
5.3.50.0170.05713.93
5.3.40.0130.05013.93
5.3.30.0100.04713.99
5.3.20.0230.04013.78
5.3.10.0270.05713.66
5.3.00.0000.07013.76
5.2.170.0170.05311.07
5.2.160.0030.05010.95
5.2.150.0000.05711.37
5.2.140.0170.04311.37
5.2.130.0030.04711.33
5.2.120.0070.06011.09
5.2.110.0000.04711.21
5.2.100.0070.05311.03
5.2.90.0130.05311.08
5.2.80.0130.05311.09
5.2.70.0130.04311.20
5.2.60.0070.05711.25
5.2.50.0100.04311.13
5.2.40.0100.04011.05
5.2.30.0030.04311.12
5.2.20.0070.04310.94
5.2.10.0100.05710.96
5.2.00.0200.04010.76
5.1.60.0130.04010.05
5.1.50.0100.03310.27
5.1.40.0070.04710.06
5.1.30.0030.05710.63
5.1.20.0100.03710.61
5.1.10.0030.04010.11
5.1.00.0270.03010.38
5.0.50.0030.0338.77
5.0.40.0170.0238.61
5.0.30.0030.0478.46
5.0.20.0000.0308.29
5.0.10.0100.0338.32
5.0.00.0030.0538.45
4.4.90.0100.0207.19
4.4.80.0070.0277.19
4.4.70.0030.0277.19
4.4.60.0070.0207.19
4.4.50.0100.0207.19
4.4.40.0070.0377.19
4.4.30.0070.0207.19
4.4.20.0030.0307.19
4.4.10.0100.0207.19
4.4.00.0000.0437.19
4.3.110.0130.0207.19
4.3.100.0000.0277.19
4.3.90.0070.0207.19
4.3.80.0030.0437.19
4.3.70.0030.0207.19
4.3.60.0000.0237.19
4.3.50.0130.0207.19
4.3.40.0100.0407.19
4.3.30.0070.0307.19
4.3.20.0000.0277.19
4.3.10.0000.0277.19
4.3.00.0200.0176.86

preferences:
139.37 ms | 1394 KiB | 7 Q