3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isAssoc($array) { $array = array_keys($array); var_dump($array, array_keys($array)); return ($array !== array_keys($array)); } var_dump(isAssoc(0=>'a',2=>'b',1=>'c'));

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)
5.6.80.0100.07020.44
5.5.240.0030.07020.37
5.4.400.0070.06318.83
5.4.390.0170.05318.48
5.4.380.0200.05318.59
5.4.370.0230.04718.56
5.4.360.0170.05318.77
5.4.350.0100.06018.49
5.4.340.0230.04718.79
5.4.320.0230.04718.75
5.4.310.0100.05718.82
5.4.300.0130.05718.73
5.4.290.0270.04318.62
5.4.280.0200.04718.56
5.4.270.0200.04718.58
5.4.260.0070.06018.56
5.4.250.0100.06018.50
5.4.240.0130.06018.73
5.4.230.0130.05318.71
5.4.220.0100.06018.75
5.4.210.0100.06018.74
5.4.200.0230.04316.53
5.4.190.0130.05318.60
5.4.180.0230.04718.57
5.4.170.0200.05018.75
5.4.160.0330.03318.53
5.4.150.0270.04018.66
5.4.140.0300.03716.21
5.4.130.0170.04716.45
5.4.120.0100.05316.30
5.4.110.0170.04716.44
5.4.100.0170.05016.28
5.4.90.0070.06316.30
5.4.80.0170.04716.18
5.4.70.0330.03716.25
5.4.60.0100.05716.19
5.4.50.0100.05316.42
5.4.40.0130.05016.24
5.4.30.0130.05716.11
5.4.20.0130.05316.15
5.4.10.0200.05016.38
5.4.00.0130.05315.73
5.3.290.0130.06314.72
5.3.280.0130.05314.76
5.3.270.0200.04714.71
5.3.260.0170.05314.64
5.3.250.0270.05014.64
5.3.240.0200.06014.63
5.3.230.0270.04714.78
5.3.220.0170.06014.61
5.3.210.0130.05714.71
5.3.200.0200.04714.68
5.3.190.0130.05314.67
5.3.180.0200.04314.57
5.3.170.0200.04714.59
5.3.160.0230.04714.69
5.3.150.0170.05314.69
5.3.140.0200.04714.54
5.3.130.0230.05314.58
5.3.120.0300.04014.55
5.3.110.0230.05014.73
5.3.100.0100.05714.22
5.3.90.0170.04714.13
5.3.80.0170.05014.04
5.3.70.0070.05714.18
5.3.60.0170.04714.05
5.3.50.0200.04314.15
5.3.40.0170.05013.95
5.3.30.0230.05013.89
5.3.20.0130.05013.86
5.3.10.0100.06013.67
5.3.00.0100.05713.73
5.2.170.0100.04311.27
5.2.160.0270.03311.26
5.2.150.0170.03711.35
5.2.140.0170.03711.18
5.2.130.0130.04011.08
5.2.120.0170.03311.14
5.2.110.0070.05011.14
5.2.100.0070.04311.08
5.2.90.0130.04311.21
5.2.80.0170.04011.13
5.2.70.0100.04311.30
5.2.60.0100.05011.08
5.2.50.0130.04311.04
5.2.40.0100.04311.20
5.2.30.0070.05011.09
5.2.20.0130.03711.02
5.2.10.0200.03010.98
5.2.00.0130.04010.92
5.1.60.0130.0309.97
5.1.50.0030.04010.20
5.1.40.0100.03310.17
5.1.30.0070.04010.52
5.1.20.0130.03310.57
5.1.10.0170.04010.09
5.1.00.0070.04310.25
5.0.50.0100.0238.57
5.0.40.0070.0278.43
5.0.30.0100.0408.35
5.0.20.0070.0278.32
5.0.10.0130.0208.25
5.0.00.0070.0478.26
4.4.90.0030.0235.92
4.4.80.0030.0235.88
4.4.70.0070.0235.98
4.4.60.0000.0275.91
4.4.50.0030.0236.02
4.4.40.0030.0475.96
4.4.30.0070.0235.87
4.4.20.0000.0276.00
4.4.10.0030.0235.95
4.4.00.0030.0405.93
4.3.110.0100.0205.91
4.3.100.0000.0275.89
4.3.90.0070.0205.90
4.3.80.0170.0335.88
4.3.70.0030.0235.79
4.3.60.0030.0235.82
4.3.50.0100.0175.78
4.3.40.0000.0375.83
4.3.30.0000.0234.60
4.3.20.0030.0304.52
4.3.10.0030.0204.50
4.3.00.0000.0236.93

preferences:
142.53 ms | 1394 KiB | 7 Q