3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array ( 0 => 'nested array', 1 => 'nested array', 2 => 'nested array', 3 => 'nested array', 4 => 'nested array', 5 => 'nested array', ); for ($key = 0, $end = max(array_keys($arr)) + 1; array_key_exists($key, $arr); $key++); var_dump($key);

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)
8.3.60.0040.01918.03
8.3.50.0080.00821.02
8.3.40.0070.00718.42
8.3.30.0070.00719.18
8.3.20.0140.00319.92
8.3.10.0090.00022.02
8.3.00.0040.00422.40
8.2.180.0100.01018.41
8.2.170.0110.00322.96
8.2.160.0070.00720.23
8.2.150.0120.00324.18
8.2.140.0080.00324.66
8.2.130.0050.00226.16
8.2.120.0100.00019.83
8.2.110.0030.00622.06
8.2.100.0100.00019.41
8.2.90.0000.00719.13
8.2.80.0040.00417.97
8.2.70.0000.01117.50
8.2.60.0030.00617.78
8.2.50.0080.00018.07
8.2.40.0000.00818.14
8.2.30.0000.00818.05
8.2.20.0000.00817.65
8.2.10.0040.00417.64
8.2.00.0040.00417.54
8.1.280.0130.00725.92
8.1.270.0040.00420.31
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.97
8.1.230.0030.00719.21
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0040.00417.22
8.1.190.0080.00017.29
8.1.180.0020.00518.70
8.1.170.0000.00818.50
8.1.160.0000.00722.01
8.1.150.0050.00218.57
8.1.140.0040.00417.29
8.1.130.0070.00017.73
8.1.120.0040.00417.43
8.1.110.0070.00017.41
8.1.100.0070.00017.37
8.1.90.0050.00217.46
8.1.80.0030.00317.32
8.1.70.0000.00717.34
8.1.60.0000.00817.52
8.1.50.0060.00317.42
8.1.40.0040.00417.46
8.1.30.0000.00817.41
8.1.20.0000.00817.48
8.1.10.0040.00417.45
8.1.00.0030.00917.34
8.0.300.0000.00818.77
8.0.290.0000.00717.05
8.0.280.0070.00018.30
8.0.270.0030.00317.19
8.0.260.0030.00316.66
8.0.250.0000.00716.79
8.0.240.0000.00916.89
8.0.230.0000.00716.94
8.0.220.0040.00316.79
8.0.210.0000.00616.84
8.0.200.0070.00016.81
8.0.190.0030.00616.74
8.0.180.0000.00716.88
8.0.170.0040.00416.84
8.0.160.0030.00316.87
8.0.150.0000.00716.73
8.0.140.0040.00416.75
8.0.130.0000.00713.32
8.0.120.0050.00316.79
8.0.110.0040.00416.81
8.0.100.0000.00716.78
8.0.90.0050.00216.64
8.0.80.0090.00616.84
8.0.70.0000.00716.83
8.0.60.0000.00816.77
8.0.50.0070.00016.85
8.0.30.0160.00916.99
8.0.20.0100.01217.40
8.0.10.0030.00516.93
8.0.00.0080.01216.76
7.4.330.0050.00015.00
7.4.320.0030.00316.55
7.4.300.0000.00716.59
7.4.290.0070.00016.51
7.4.280.0000.00716.56
7.4.270.0030.00316.43
7.4.260.0040.00416.43
7.4.250.0070.00016.53
7.4.240.0040.00316.61
7.4.230.0080.00016.60
7.4.220.0100.01716.61
7.4.210.0100.00616.56
7.4.200.0000.00816.39
7.4.190.0030.00316.56
7.4.160.0060.00916.43
7.4.150.0090.00917.40
7.4.140.0050.01217.86
7.4.130.0080.00916.37
7.4.120.0100.01016.47
7.4.110.0090.00916.41
7.4.100.0090.00816.45
7.4.90.0040.01416.36
7.4.80.0160.01019.39
7.4.70.0100.00716.42
7.4.60.0150.00316.66
7.4.50.0000.00916.42
7.4.40.0060.00822.77
7.4.30.0000.01616.29
7.4.00.0100.00314.87
7.3.330.0000.00512.99
7.3.320.0050.00013.05
7.3.310.0000.00616.14
7.3.300.0000.00716.14
7.3.290.0080.00616.25
7.3.280.0100.00516.16
7.3.270.0100.01317.40
7.3.260.0170.01216.36
7.3.250.0120.00616.28
7.3.240.0180.00616.36
7.3.230.0070.01116.45
7.3.210.0150.00816.41
7.3.200.0130.00319.39
7.3.190.0160.00616.49
7.3.180.0120.00816.49
7.3.170.0090.00916.51
7.3.160.0060.01116.11
7.3.120.0060.01014.69
7.2.330.0060.01116.51
7.2.320.0090.00916.73
7.2.310.0060.01316.38
7.2.300.0090.00916.57
7.2.290.0030.01316.41
7.2.60.0080.00016.68
7.1.200.0030.00915.82
7.1.70.0000.00717.30
7.1.60.0110.01119.50
7.1.50.0100.01316.92
7.1.00.0000.05722.46
7.0.200.0000.00716.91
7.0.140.0100.06722.18
7.0.60.0030.06319.84
7.0.50.0030.05317.85
7.0.40.0070.06720.05
7.0.30.0230.04720.30
7.0.20.0300.06720.16
7.0.10.0270.05319.98
7.0.00.0100.07320.16
5.6.280.0000.07320.90
5.6.210.0030.05320.68
5.6.200.0100.06318.22
5.6.190.0030.07320.48
5.6.180.3330.04720.67
5.6.170.0270.08020.38
5.6.160.0170.06720.49
5.6.150.0070.05718.12
5.6.140.0100.03318.13
5.6.130.0070.04018.17
5.6.120.0100.08320.99
5.6.110.0100.08321.01
5.6.100.0030.07720.98
5.6.90.0170.07320.96
5.6.80.0070.05020.28
5.5.350.0230.07720.31
5.5.340.0030.04318.02
5.5.330.0000.06020.32
5.5.320.0300.08020.34
5.5.310.0230.03320.34
5.5.300.0030.04017.95
5.5.290.0130.07317.91
5.5.280.0000.04320.79
5.5.270.0100.08320.64
5.5.260.0070.05320.89
5.5.250.0100.04020.61
5.5.240.0030.06320.20
5.4.450.0830.05719.47
5.4.440.0770.05719.55
5.4.430.0830.06319.54
5.4.420.1030.07019.58
5.4.410.0800.06319.00
5.4.400.1270.05318.61
5.4.390.0900.05318.73
5.4.380.0300.04718.61
5.4.370.0200.04318.50
5.4.360.0200.04718.63
5.4.350.0100.03611.98
5.4.340.0060.03811.97
5.4.320.0110.04312.46
5.4.310.0110.04212.45
5.4.300.0040.03712.46
5.4.290.0100.03312.45
5.4.280.0060.03412.35
5.4.270.0070.04312.35
5.4.260.0030.04112.35
5.4.250.0170.04318.73
5.4.240.0070.05018.77
5.4.230.0100.05018.92
5.4.220.0100.05019.02
5.4.210.0130.04718.72
5.4.200.0070.05018.86
5.4.190.0070.05318.91
5.4.180.0030.06018.86
5.4.170.0170.04718.82
5.4.160.0030.05318.97
5.4.150.0070.07318.73
5.4.140.0100.07016.43
5.4.130.0130.04316.27
5.4.120.0030.05016.43
5.4.110.0100.05716.44
5.4.100.0030.06716.34
5.4.90.0130.03716.27
5.4.80.0070.04716.39
5.4.70.0100.04716.41
5.4.60.0030.05016.26
5.4.50.0070.04716.17
5.4.40.0100.04316.37
5.4.30.0000.05716.49
5.4.20.0030.05716.46
5.4.10.0100.05016.39
5.4.00.0070.04715.71
5.3.290.0090.04812.80
5.3.280.0070.05014.46
5.3.270.0070.05014.44
5.3.260.0070.05314.46
5.3.250.0030.06314.52
5.3.240.0000.05714.72
5.3.230.0170.06314.62
5.3.220.0070.05014.66
5.3.210.0070.07014.27
5.3.200.0070.07714.67
5.3.190.0000.05714.26
5.3.180.0170.04014.71
5.3.170.0100.04714.40
5.3.160.0070.04714.41
5.3.150.0070.05014.40
5.3.140.0100.04714.41
5.3.130.0070.05014.55
5.3.120.0100.05014.40
5.3.110.0000.06014.24
5.3.100.0000.05714.04
5.3.90.0070.05313.90
5.3.80.0070.04714.11
5.3.70.0100.04714.01
5.3.60.0170.06014.01
5.3.50.0130.04713.64
5.3.40.0070.05013.96
5.3.30.0070.06013.79
5.3.20.0100.04713.54
5.3.10.0130.04013.52
5.3.00.0130.04713.52
5.2.170.0070.04011.15
5.2.160.0030.04011.16
5.2.150.0100.03711.14
5.2.140.0030.04711.05
5.2.130.0100.03310.86
5.2.120.0000.04311.02
5.2.110.0030.04311.01
5.2.100.0070.03711.02
5.2.90.0030.04010.98
5.2.80.0100.03710.99
5.2.70.0070.04011.00
5.2.60.0070.04011.07
5.2.50.0070.05010.85
5.2.40.0100.03311.00
5.2.30.0100.03310.89
5.2.20.0070.03710.72
5.2.10.0030.04010.62
5.2.00.0070.04310.77
5.1.60.0070.03010.14
5.1.50.0100.03010.02
5.1.40.0100.0279.90
5.1.30.0000.04010.21
5.1.20.0070.03310.11
5.1.10.0000.04010.16
5.1.00.0030.0339.95
5.0.50.0070.0238.63
5.0.40.0030.0338.36
5.0.30.0070.0378.13
5.0.20.0030.0238.42
5.0.10.0000.0278.13
5.0.00.0000.0407.94
4.4.90.0000.0236.50
4.4.80.0000.0236.50
4.4.70.0000.0236.50
4.4.60.0030.0206.50
4.4.50.0000.0206.50
4.4.40.0000.0436.50
4.4.30.0000.0306.50
4.4.20.0000.0206.50
4.4.10.0030.0206.50
4.4.00.0030.0306.50
4.3.110.0000.0206.50
4.3.100.0030.0176.50
4.3.90.0000.0206.50
4.3.80.0030.0306.50
4.3.70.0000.0206.50
4.3.60.0000.0206.50
4.3.50.0030.0236.50
4.3.40.0030.0306.50
4.3.30.0000.0236.50
4.3.20.0000.0236.50
4.3.10.0000.0236.50
4.3.00.0070.0236.91

preferences:
41.3 ms | 401 KiB | 5 Q