3v4l.org

run code in 300+ PHP versions simultaneously
<?php $assoc = array( "a" => 1, "b" => 0, 0 => 0 ); function is_assoc($array){ $sorted = ksort(array_keys($array)); return !ctype_digit( implode('', $sorted)); } echo is_assoc($assoc); ?>

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)
8.3.60.0070.00718.40
8.3.50.0140.00421.08
8.3.40.0090.00618.61
8.3.30.0110.00419.17
8.3.20.0080.00020.35
8.3.10.0050.00321.91
8.3.00.0040.00422.52
8.2.180.0170.00316.38
8.2.170.0090.00522.96
8.2.160.0190.00319.21
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00419.29
8.2.110.0030.00620.58
8.2.100.0090.00317.84
8.2.90.0090.00019.22
8.2.80.0000.00917.97
8.2.70.0000.00817.48
8.2.60.0080.00017.91
8.2.50.0040.00418.07
8.2.40.0070.00318.09
8.2.30.0030.00518.08
8.2.20.0040.00417.58
8.2.10.0000.00717.79
8.2.00.0000.00817.67
8.1.280.0060.00925.92
8.1.270.0040.00420.29
8.1.260.0140.00726.35
8.1.250.0040.00428.09
8.1.240.0090.00022.18
8.1.230.0070.00418.86
8.1.220.0000.00717.74
8.1.210.0080.00018.77
8.1.200.0080.00317.25
8.1.190.0050.00317.53
8.1.180.0040.00420.53
8.1.170.0040.00418.48
8.1.160.0080.00022.09
8.1.150.0000.00718.54
8.1.140.0070.00017.38
8.1.130.0030.00317.75
8.1.120.0000.00817.41
8.1.110.0050.00317.29
8.1.100.0000.00817.37
8.1.90.0000.00717.29
8.1.80.0030.00517.36
8.1.70.0030.00317.36
8.1.60.0080.00017.56
8.1.50.0050.00217.48
8.1.40.0060.00317.50
8.1.30.0020.00517.58
8.1.20.0030.00517.66
8.1.10.0000.00817.55
8.1.00.0020.00517.50
8.0.300.0070.00018.77
8.0.290.0070.00017.16
8.0.280.0030.00318.27
8.0.270.0070.00017.18
8.0.260.0000.00616.70
8.0.250.0030.00316.86
8.0.240.0040.00416.95
8.0.230.0070.00016.99
8.0.220.0000.00716.77
8.0.210.0000.00716.76
8.0.200.0000.00716.95
8.0.190.0040.00816.95
8.0.180.0060.00316.82
8.0.170.0040.00416.93
8.0.160.0030.00516.83
8.0.150.0000.00916.80
8.0.140.0030.00516.81
8.0.130.0030.00313.30
8.0.120.0090.00016.76
8.0.110.0040.00416.94
8.0.100.0050.00516.71
8.0.90.0000.00716.89
8.0.80.0030.01316.89
8.0.70.0070.00016.93
8.0.60.0080.00016.79
8.0.50.0040.00416.71
8.0.30.0080.01317.03
8.0.20.0090.01017.40
8.0.10.0070.00416.91
8.0.00.0110.00616.89
7.4.330.0020.00215.00
7.4.320.0000.00616.55
7.4.300.0000.00616.57
7.4.290.0040.00416.62
7.4.280.0040.00416.59
7.4.270.0030.00316.65
7.4.260.0050.00216.58
7.4.250.0040.00416.41
7.4.240.0050.00216.62
7.4.230.0070.00016.70
7.4.220.0160.00916.40
7.4.210.0080.00816.60
7.4.200.0070.00016.30
7.4.190.0000.00816.56
7.4.160.0030.01216.41
7.4.150.0130.00417.40
7.4.140.0130.00517.86
7.4.130.0130.00416.36
7.4.120.0140.00316.45
7.4.110.0130.01016.71
7.4.100.0030.01716.45
7.4.90.0100.00716.59
7.4.80.0130.00319.39
7.4.70.0030.01816.30
7.4.60.0090.00916.55
7.4.50.0000.00416.37
7.4.40.0060.01022.77
7.4.30.0030.01316.46
7.4.00.0030.01514.98
7.3.330.0000.00513.31
7.3.320.0060.00013.34
7.3.310.0000.00616.36
7.3.300.0030.00316.23
7.3.290.0100.00316.41
7.3.280.0070.00816.34
7.3.270.0070.01017.40
7.3.260.0150.00316.29
7.3.250.0060.01116.44
7.3.240.0070.01116.57
7.3.230.0060.01516.45
7.3.210.0040.01216.41
7.3.200.0100.01419.39
7.3.190.0090.01316.39
7.3.180.0070.01016.52
7.3.170.0030.01416.44
7.3.160.0060.01016.44
7.3.120.0110.00315.09
7.3.10.0070.00716.70
7.3.00.0150.00016.52
7.2.330.0110.00716.71
7.2.320.0060.01216.74
7.2.310.0060.01016.48
7.2.300.0070.01016.57
7.2.290.0080.00816.40
7.2.130.0150.00016.70
7.2.120.0060.01016.82
7.2.110.0110.00416.80
7.2.100.0000.01016.79
7.2.90.0090.00616.77
7.2.80.0080.00816.99
7.2.70.0040.00816.74
7.2.60.0060.00816.77
7.2.50.0040.00816.81
7.2.40.0030.01216.88
7.2.30.0070.00717.08
7.2.20.0100.01016.67
7.2.10.0130.00716.36
7.2.00.0060.01218.00
7.1.250.0040.00415.68
7.1.200.0000.01015.59
7.1.100.0080.00418.29
7.1.70.0030.00717.30
7.1.60.0140.01019.82
7.1.50.0160.00616.95
7.1.00.0030.03322.34
7.0.200.0070.00016.48
7.0.140.0000.07022.04
7.0.60.0270.06319.96
7.0.50.0030.09017.94
7.0.40.0030.08320.30
7.0.30.0170.05320.09
7.0.20.0330.07320.33
7.0.10.0170.04320.09
7.0.00.0030.04020.15
5.6.280.0000.07721.03
5.6.210.0000.09020.45
5.6.200.0070.06718.24
5.6.190.0030.04720.77
5.6.180.0400.07720.49
5.6.170.0230.07720.71
5.6.160.0170.07320.54
5.6.150.0100.03318.18
5.6.140.0030.05718.14
5.6.130.0130.04018.21
5.6.120.0130.06321.01
5.6.110.0100.08021.14
5.6.100.0100.08721.00
5.6.90.0130.07720.95
5.6.80.0100.08020.38
5.5.350.0100.03320.31
5.5.340.0100.08318.09
5.5.330.0030.04320.13
5.5.320.0230.03720.27
5.5.310.0370.07020.34
5.5.300.0170.06717.92
5.5.290.0100.07317.98
5.5.280.0070.05020.77
5.5.270.0030.04020.77
5.5.260.0130.08020.87
5.5.250.0070.08020.58
5.5.240.0130.07020.26
5.4.450.0730.05719.48
5.4.440.0670.08019.61
5.4.430.0770.05719.34
5.4.420.0170.04719.61
5.4.410.0730.05319.05
5.4.400.0500.06018.85
5.4.390.0370.07318.70
5.4.380.0230.06018.89
5.4.370.0130.05018.53
5.4.360.0070.05718.78
5.4.350.0080.04812.02
5.4.340.0140.03812.02
5.4.320.0050.03612.50
5.4.310.0030.04012.50
5.4.300.0090.03312.51
5.4.290.0080.03412.50
5.4.280.0080.03612.40
5.4.270.0050.03612.40
5.4.260.0060.04112.40
5.4.250.0070.05318.93
5.4.240.0170.04018.78
5.4.230.0100.04719.06
5.4.220.0030.05718.95
5.4.210.0000.05718.93
5.4.200.0070.05018.97
5.4.190.0070.05318.91
5.4.180.0070.05018.96
5.4.170.0000.05718.80
5.4.160.0100.06718.74
5.4.150.0130.05718.91
5.4.140.0130.04316.58
5.4.130.0100.06716.43
5.4.120.0000.07716.44
5.4.110.0100.05016.58
5.4.100.0130.04716.45
5.4.90.0000.05316.52
5.4.80.0070.04716.44
5.4.70.0030.05016.42
5.4.60.0100.04316.30
5.4.50.0130.04316.46
5.4.40.0070.06716.46
5.4.30.0130.06016.55
5.4.20.0130.04016.41
5.4.10.0030.05016.39
5.4.00.0070.04716.01
5.3.290.0080.04512.80
5.3.280.0030.05014.77
5.3.270.0070.05314.60
5.3.260.0130.06314.82
5.3.250.0170.04314.76
5.3.240.0000.06014.83
5.3.230.0000.05714.62
5.3.220.0000.08014.64
5.3.210.0030.07014.70
5.3.200.0030.05314.64
5.3.190.0100.05014.64
5.3.180.0170.04014.72
5.3.170.0170.04014.64
5.3.160.0030.05014.78
5.3.150.0030.05314.59
5.3.140.0200.03714.38
5.3.130.0100.04714.77
5.3.120.0170.04014.63
5.3.110.0070.05014.77
5.3.100.0130.04314.01
5.3.90.0100.04314.09
5.3.80.0100.04314.10
5.3.70.0100.04714.09
5.3.60.0100.04314.15
5.3.50.0100.04313.96
5.3.40.0000.05314.03
5.3.30.0170.05314.08
5.3.20.0070.05713.77
5.3.10.0130.05313.71
5.3.00.0130.06313.64
5.2.170.0000.04711.22
5.2.160.0030.04011.23
5.2.150.0070.03711.21
5.2.140.0030.04011.23
5.2.130.0130.04311.27
5.2.120.0030.04311.00
5.2.110.0070.03311.18
5.2.100.0070.03711.16
5.2.90.0000.04311.18
5.2.80.0000.05011.16
5.2.70.0100.03711.08
5.2.60.0070.04011.01
5.2.50.0030.04311.11
5.2.40.0000.04711.02
5.2.30.0030.04311.04
5.2.20.0030.04311.03
5.2.10.0100.04710.76
5.2.00.0030.04010.79
5.1.60.0100.0279.84
5.1.50.0070.03010.09
5.1.40.0000.04310.13
5.1.30.0100.03310.43
5.1.20.0030.03310.51
5.1.10.0030.03710.16
5.1.00.0030.03710.13
5.0.50.0100.0238.58
5.0.40.0070.0378.46
5.0.30.0000.0438.18
5.0.20.0070.0238.43
5.0.10.0030.0278.16
5.0.00.0000.0438.11
4.4.90.0030.0276.66
4.4.80.0000.0236.66
4.4.70.0000.0236.66
4.4.60.0070.0236.66
4.4.50.0000.0236.66
4.4.40.0000.0336.66
4.4.30.0000.0276.66
4.4.20.0070.0176.66
4.4.10.0030.0206.66
4.4.00.0000.0376.66
4.3.110.0000.0236.66
4.3.100.0030.0206.66
4.3.90.0070.0176.66
4.3.80.0070.0276.66
4.3.70.0030.0236.66
4.3.60.0000.0206.66
4.3.50.0070.0236.66
4.3.40.0030.0306.66
4.3.30.0000.0236.66
4.3.20.0030.0206.66
4.3.10.0030.0206.66
4.3.00.0170.0207.59

preferences:
35.7 ms | 401 KiB | 5 Q