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(array(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)
8.3.40.0070.00718.89
8.3.30.0140.00019.08
8.3.20.0000.00720.25
8.3.10.0070.00021.89
8.3.00.0110.00017.23
8.2.170.0090.00622.96
8.2.160.0030.01021.99
8.2.150.0000.00824.18
8.2.140.0050.00224.66
8.2.130.0070.00026.16
8.2.120.0040.00419.64
8.2.110.0000.00920.89
8.2.100.0060.00617.63
8.2.90.0040.00419.09
8.2.80.0050.00517.97
8.2.70.0060.00317.63
8.2.60.0040.00417.93
8.2.50.0030.00518.07
8.2.40.0040.00418.07
8.2.30.0040.00418.06
8.2.20.0030.00617.53
8.2.10.0000.00817.93
8.2.00.0040.00417.61
8.1.270.0030.00620.61
8.1.260.0080.00026.35
8.1.250.0030.00528.09
8.1.240.0040.00423.84
8.1.230.0070.00318.75
8.1.220.0060.00317.74
8.1.210.0000.00918.77
8.1.200.0030.00617.00
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0060.00320.29
8.1.160.0000.00721.95
8.1.150.0000.00718.83
8.1.140.0080.00017.29
8.1.130.0030.00317.81
8.1.120.0000.00717.36
8.1.110.0080.00017.43
8.1.100.0000.00717.29
8.1.90.0070.00017.41
8.1.80.0040.00417.29
8.1.70.0000.00817.47
8.1.60.0030.00617.55
8.1.50.0000.00817.54
8.1.40.0040.00417.58
8.1.30.0030.00517.54
8.1.20.0070.00017.59
8.1.10.0060.00317.43
8.1.00.0040.00717.33
8.0.300.0070.00018.77
8.0.290.0050.00316.63
8.0.280.0000.00718.39
8.0.270.0030.00317.11
8.0.260.0070.00017.14
8.0.250.0040.00416.92
8.0.240.0060.00016.89
8.0.230.0050.00216.79
8.0.220.0000.00716.79
8.0.210.0000.00716.84
8.0.200.0060.00016.89
8.0.190.0040.00416.82
8.0.180.0000.00716.88
8.0.170.0000.00816.80
8.0.160.0030.00316.82
8.0.150.0000.00716.69
8.0.140.0030.00316.78
8.0.130.0000.00713.23
8.0.120.0040.00416.75
8.0.110.0030.00516.78
8.0.100.0000.00716.77
8.0.90.0030.00516.87
8.0.80.0070.01516.85
8.0.70.0080.00016.87
8.0.60.0050.00316.95
8.0.50.0040.00416.71
8.0.30.0140.01017.19
8.0.20.0110.01117.40
8.0.10.0040.00416.93
8.0.00.0070.01216.80
7.4.330.0050.00015.09
7.4.320.0000.00716.52
7.4.300.0030.00316.61
7.4.290.0050.00316.43
7.4.280.0070.00316.59
7.4.270.0000.00716.50
7.4.260.0000.00616.48
7.4.250.0000.00716.59
7.4.240.0040.00316.58
7.4.230.0070.00016.41
7.4.220.0120.00616.47
7.4.210.0090.00616.59
7.4.200.0040.00216.48
7.4.160.0080.00816.29
7.4.150.0090.00917.40
7.4.140.0230.02317.86
7.4.130.0130.00616.54
7.4.120.0080.01016.56
7.4.110.0100.01016.48
7.4.100.0170.00616.64
7.4.90.0070.01016.40
7.4.80.0100.01319.39
7.4.70.0080.00916.70
7.4.60.0070.01116.57
7.4.50.0050.00016.35
7.4.40.0090.00616.33
7.4.30.0130.00916.51
7.4.00.0070.00914.92
7.3.330.0000.00513.29
7.3.320.0130.00013.14
7.3.310.0000.00716.16
7.3.300.0000.00716.31
7.3.290.0030.00316.30
7.3.280.0060.01216.29
7.3.270.0070.01017.40
7.3.260.0090.00916.28
7.3.250.0120.00816.33
7.3.240.0120.00916.21
7.3.230.0050.01416.39
7.3.210.0110.00716.27
7.3.200.0120.00619.39
7.3.190.0030.01216.13
7.3.180.0150.00616.23
7.3.170.0060.01116.44
7.3.160.0160.00016.47
7.3.120.0100.00814.84
7.3.110.0050.01114.70
7.3.100.0030.01014.73
7.3.90.0070.00714.89
7.3.80.0050.01014.77
7.3.70.0080.00714.82
7.3.60.0080.00614.69
7.3.50.0080.00514.70
7.3.40.0070.00314.69
7.3.30.0070.00814.82
7.3.20.0060.00716.68
7.3.10.0080.00716.62
7.3.00.0080.00516.64
7.2.330.0100.01316.54
7.2.320.0130.01016.56
7.2.310.0090.00816.64
7.2.300.0070.01016.59
7.2.290.0100.01016.63
7.2.250.0110.00914.80
7.2.240.0090.00914.74
7.2.230.0080.00914.95
7.2.220.0070.00514.77
7.2.210.0040.00914.78
7.2.200.0060.00914.91
7.2.190.0050.00914.78
7.2.180.0090.00614.81
7.2.170.0070.00814.71
7.2.160.0060.01014.94
7.2.150.0070.01116.59
7.2.140.0040.01416.76
7.2.130.0030.00916.66
7.2.120.0090.00916.99
7.2.110.0040.01116.43
7.2.100.0000.01116.80
7.2.90.0060.00616.91
7.2.80.0070.00416.63
7.2.70.0090.00616.69
7.2.60.0070.00716.88
7.2.50.0000.01416.82
7.2.40.0030.00716.41
7.2.30.0060.00916.69
7.2.20.0040.00716.88
7.2.10.0030.01216.86
7.2.00.0020.01117.97
7.1.330.0080.00715.73
7.1.320.0040.00715.80
7.1.310.0070.00615.80
7.1.300.0090.00715.69
7.1.290.0070.00915.81
7.1.280.0060.00815.78
7.1.270.0060.00815.80
7.1.260.0060.00615.55
7.1.250.0090.00615.63
7.1.100.0040.00817.98
7.1.70.0040.01117.18
7.1.60.0030.02019.46
7.1.50.0250.01434.86
7.1.00.0000.07722.46
7.0.200.0100.00316.51
7.0.140.0030.03322.10
7.0.60.0000.04319.78
7.0.50.0070.08717.84
7.0.40.0070.04020.28
7.0.30.0270.08320.13
7.0.20.0230.04020.20
7.0.10.0070.05320.09
7.0.00.0130.07720.06
5.6.280.0070.07020.99
5.6.210.0030.08020.77
5.6.200.0030.05718.19
5.6.190.0100.07320.45
5.6.180.3370.04320.41
5.6.170.0270.08020.48
5.6.160.0070.07720.67
5.6.150.0070.08018.27
5.6.140.0030.08718.21
5.6.130.0070.04018.23
5.6.120.0170.07321.14
5.6.110.0030.04321.02
5.6.100.0100.08321.04
5.6.90.0070.03721.03
5.6.80.0030.07020.53
5.6.70.4430.04320.28
5.5.350.0070.07320.42
5.5.340.0070.08018.03
5.5.330.0000.04720.27
5.5.320.0170.06020.36
5.5.310.0130.04320.38
5.5.300.0070.05018.07
5.5.290.0130.07318.02
5.5.280.0170.07020.89
5.5.270.0100.04720.68
5.5.260.0130.07320.87
5.5.250.0130.05020.59
5.5.240.0030.08320.16
5.4.450.0270.05019.59
5.4.440.1070.07019.31
5.4.430.0330.06719.62
5.4.420.0830.05019.70
5.4.410.0130.06719.04
5.4.400.0270.04318.84
5.4.390.0300.04018.62
5.4.380.0200.05018.75
5.4.370.0130.05718.68
5.4.360.0270.04318.48
5.4.350.0200.05318.45
5.4.340.0200.05018.71
5.4.320.0230.04718.53
5.4.310.0170.05318.68
5.4.300.0170.05318.62
5.4.290.0230.04718.56
5.4.280.0130.05718.75
5.4.270.0130.05718.44
5.4.260.0270.04718.71
5.4.250.0200.05318.72
5.4.240.0200.05018.50
5.4.230.0200.05018.76
5.4.220.0130.05718.43
5.4.210.0170.05018.74
5.4.200.0170.05016.50
5.4.190.0230.04718.77
5.4.180.0170.05318.73
5.4.170.0030.06718.75
5.4.160.0230.04718.73
5.4.150.0200.05018.48
5.4.140.0200.04716.45
5.4.130.0170.05016.27
5.4.120.0170.05016.30
5.4.110.0270.03716.40
5.4.100.0170.05016.16
5.4.90.0170.05316.27
5.4.80.0200.05016.31
5.4.70.0200.04716.27
5.4.60.0070.05716.28
5.4.50.0170.04716.21
5.4.40.0200.04716.30
5.4.30.0330.03316.26
5.4.20.0130.05716.31
5.4.10.0230.04316.41
5.4.00.0030.06715.72
5.3.290.0200.06014.69
5.3.280.0070.06014.60
5.3.270.0130.05714.82
5.3.260.0170.05314.71
5.3.250.0330.03714.70
5.3.240.0200.05014.60
5.3.230.0170.05014.61
5.3.220.0130.05714.75
5.3.210.0270.05014.62
5.3.200.0170.06714.75
5.3.190.0130.05714.59
5.3.180.0170.04714.59
5.3.170.0130.05014.59
5.3.160.0170.04714.73
5.3.150.0270.04314.78
5.3.140.0130.05714.54
5.3.130.0200.05014.57
5.3.120.0130.06014.59
5.3.110.0230.05014.57
5.3.100.0130.05314.09
5.3.90.0130.05314.07
5.3.80.0130.05314.07
5.3.70.0170.05014.22
5.3.60.0170.05014.08
5.3.50.0170.05014.02
5.3.40.0200.04714.15
5.3.30.0100.05713.97
5.3.20.0170.04713.80
5.3.10.0130.05013.75
5.3.00.0130.05313.71
5.2.170.0100.04311.14
5.2.160.0230.03311.35
5.2.150.0200.03311.26
5.2.140.0070.05011.18
5.2.130.0100.04311.15
5.2.120.0100.04311.16
5.2.110.0100.04311.15
5.2.100.0170.03311.08
5.2.90.0070.04711.15
5.2.80.0100.04311.14
5.2.70.0230.04011.29
5.2.60.0100.04711.03
5.2.50.0130.04011.24
5.2.40.0070.04311.03
5.2.30.0130.04011.02
5.2.20.0030.04711.18
5.2.10.0130.03710.92
5.2.00.0070.04310.73
5.1.60.0070.03710.02
5.1.50.0100.03310.12
5.1.40.0230.02010.15
5.1.30.0100.03710.38
5.1.20.0030.04310.55
5.1.10.0070.04010.05
5.1.00.0170.03010.20
5.0.50.0000.0338.72
5.0.40.0070.0278.43
5.0.30.0070.0438.35
5.0.20.0130.0208.30
5.0.10.0130.0238.28
5.0.00.0200.0478.16
4.4.90.0070.0205.89
4.4.80.0030.0236.01
4.4.70.0130.0135.98
4.4.60.0070.0205.87
4.4.50.0000.0276.02
4.4.40.0070.0335.97
4.4.30.0070.0205.94
4.4.20.0030.0235.95
4.4.10.0070.0206.05
4.4.00.0130.0305.90
4.3.110.0000.0305.81
4.3.100.0030.0235.82
4.3.90.0030.0235.90
4.3.80.0070.0335.83
4.3.70.0030.0235.92
4.3.60.0070.0205.89
4.3.50.0100.0275.91
4.3.40.0070.0335.74
4.3.30.0030.0334.55
4.3.20.0070.0204.66
4.3.10.0000.0274.53
4.3.00.0000.0236.93

preferences:
46.65 ms | 400 KiB | 5 Q