3v4l.org

run code in 300+ PHP versions simultaneously
<?php function permutation($arr) { while($ele=array_shift($arr)) { $row=array($ele); foreach($arr as $rest) { $row[]=$rest; if(count($row)==2) var_dump($row); } } } permutation(array("1","2","3","4"));

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)
8.3.40.0090.00618.89
8.3.30.0090.00619.11
8.3.20.0070.00020.02
8.3.10.0080.00021.97
8.3.00.0040.00422.36
8.2.170.0110.00422.96
8.2.160.0090.00620.94
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0080.00019.36
8.2.110.0030.00619.38
8.2.100.0040.00817.91
8.2.90.0050.00319.28
8.2.80.0040.00417.97
8.2.70.0000.00817.63
8.2.60.0050.00318.16
8.2.50.0060.00318.07
8.2.40.0060.00318.13
8.2.30.0030.00718.11
8.2.20.0050.00317.68
8.2.10.0050.00217.76
8.2.00.0040.00417.78
8.1.270.0080.00023.96
8.1.260.0050.00326.35
8.1.250.0050.00328.09
8.1.240.0030.00620.95
8.1.230.0040.00817.42
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0040.00817.23
8.1.190.0040.00417.36
8.1.180.0000.00818.10
8.1.170.0030.00618.49
8.1.160.0000.00722.07
8.1.150.0000.00818.64
8.1.140.0040.00417.37
8.1.130.0000.01017.86
8.1.120.0070.00017.48
8.1.110.0030.00317.29
8.1.100.0000.00717.48
8.1.90.0040.00417.51
8.1.80.0070.00017.50
8.1.70.0040.00417.45
8.1.60.0040.00417.62
8.1.50.0000.00817.56
8.1.40.0060.00317.40
8.1.30.0080.00017.50
8.1.20.0060.00317.61
8.1.10.0060.00317.55
8.1.00.0000.00817.38
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0040.00418.32
8.0.270.0050.00317.34
8.0.260.0040.00416.76
8.0.250.0030.00316.97
8.0.240.0040.00416.95
8.0.230.0070.00016.98
8.0.220.0040.00416.84
8.0.210.0000.00716.75
8.0.200.0000.00616.94
8.0.190.0080.00316.94
8.0.180.0060.00616.91
8.0.170.0040.00416.94
8.0.160.0000.00716.94
8.0.150.0000.00816.83
8.0.140.0000.00816.87
8.0.130.0000.00513.31
8.0.120.0000.00816.84
8.0.110.0050.00216.91
8.0.100.0030.00516.95
8.0.90.0040.00416.84
8.0.80.0040.01116.80
8.0.70.0040.00416.79
8.0.60.0080.00016.83
8.0.50.0070.00016.84
8.0.30.0090.01317.01
8.0.20.0090.01017.40
8.0.10.0020.00517.07
8.0.00.0100.00816.74
7.4.330.0050.00015.00
7.4.320.0000.00616.51
7.4.300.0070.00016.64
7.4.290.0000.00716.64
7.4.280.0000.00716.48
7.4.270.0030.00516.59
7.4.260.0000.00816.42
7.4.250.0000.00716.53
7.4.240.0040.00416.55
7.4.230.0040.00416.30
7.4.220.0060.01916.69
7.4.210.0080.00816.49
7.4.200.0050.00216.61
7.4.190.0030.00316.42
7.4.160.0220.00016.43
7.4.150.0090.00917.40
7.4.140.0100.01117.86
7.4.130.0100.01016.48
7.4.120.0100.00716.53
7.4.110.0130.00716.40
7.4.100.0120.00616.54
7.4.90.0140.00316.39
7.4.80.0050.01219.39
7.4.70.0090.00916.56
7.4.60.0100.00716.54
7.4.50.0030.00316.48
7.4.40.0070.01022.77
7.4.30.0040.01116.46
7.4.00.0030.01214.69
7.3.330.0060.00013.25
7.3.320.0030.00313.30
7.3.310.0000.00716.18
7.3.300.0070.00016.35
7.3.290.0040.01116.30
7.3.280.0080.01016.28
7.3.270.0060.01217.40
7.3.260.0170.00016.37
7.3.250.0070.01116.51
7.3.240.0130.00416.64
7.3.230.0090.00616.39
7.3.210.0110.00716.47
7.3.200.0150.00619.39
7.3.190.0140.00316.54
7.3.180.0100.01216.31
7.3.170.0110.01116.67
7.3.160.0060.00916.29
7.3.120.0060.00914.88
7.2.330.0100.00716.43
7.2.320.0070.01316.73
7.2.310.0060.01316.80
7.2.300.0170.00016.77
7.2.290.0100.00716.69
7.2.00.0000.01519.45
7.1.200.0030.00915.83
7.1.100.0030.00618.19
7.1.70.0040.00417.27
7.1.60.0070.01719.82
7.1.50.0070.00716.94
7.1.00.0000.08022.30
7.0.200.1970.01016.70
7.0.140.0000.07722.00
7.0.60.0170.07720.02
7.0.50.0030.04317.72
7.0.40.0070.08020.27
7.0.30.0270.06020.17
7.0.20.0270.07020.26
7.0.10.0100.08720.07
7.0.00.0000.04320.23
5.6.280.0100.06721.08
5.6.210.0030.08320.73
5.6.200.0070.07318.27
5.6.190.0030.05020.66
5.6.180.3300.04720.77
5.6.170.0100.04720.46
5.6.160.0070.04020.52
5.6.150.0000.09018.15
5.6.140.0030.07318.17
5.6.130.0100.05718.25
5.6.120.0170.07321.00
5.6.110.0130.06721.12
5.6.100.0130.07320.94
5.6.90.0100.06321.00
5.6.80.0170.03320.39
5.6.70.4570.04020.36
5.5.350.0070.08720.47
5.5.340.0070.04318.02
5.5.330.0070.03720.31
5.5.320.0200.04020.31
5.5.310.0300.05020.34
5.5.300.0100.05017.98
5.5.290.0100.07317.97
5.5.280.0070.06320.98
5.5.270.0070.06020.79
5.5.260.0170.05720.80
5.5.250.0100.07020.58
5.5.240.0230.06320.23
5.4.450.0370.04719.43
5.4.440.0370.03719.57
5.4.430.0500.05019.58
5.4.420.0500.03019.45
5.4.410.0100.05319.06
5.4.400.0170.04718.62
5.4.390.0170.04718.61
5.4.380.0170.05018.73
5.4.370.0170.04718.75
5.4.360.0130.05318.63
5.4.350.0130.05718.47
5.4.340.0100.05718.75
5.4.320.0100.04212.50
5.4.310.0050.04012.50
5.4.300.0040.03812.51
5.4.290.0070.04312.50
5.4.280.0060.03612.38
5.4.270.0040.03812.37
5.4.260.0030.04012.37
5.4.250.0040.03912.37
5.4.240.0050.03712.38
5.4.230.0080.03812.37
5.4.220.0070.03412.36
5.4.210.0080.03312.36
5.4.200.0050.03912.36
5.4.190.0020.03912.36
5.4.180.0060.04012.36
5.4.170.0040.03812.37
5.4.160.0040.03712.36
5.4.150.0070.03912.36
5.4.140.0060.03812.04
5.4.130.0100.03112.03
5.4.120.0030.03911.99
5.4.110.0030.04011.98
5.4.100.0070.03511.98
5.4.90.0070.03611.98
5.4.80.0040.03911.99
5.4.70.0090.04211.98
5.4.60.0090.03911.98
5.4.50.0050.03711.98
5.4.40.0030.03711.97
5.4.30.0070.04011.96
5.4.20.0040.03811.96
5.4.10.0060.03611.96
5.4.00.0090.03311.46
5.3.290.0060.03912.80
5.3.280.0050.03912.71
5.3.270.0020.05012.72
5.3.260.0050.04012.72
5.3.250.0070.03912.72
5.3.240.0090.03412.72
5.3.230.0040.04012.71
5.3.220.0090.03512.68
5.3.210.0080.03712.68
5.3.200.0070.04312.68
5.3.190.0090.03612.68
5.3.180.0100.03412.68
5.3.170.0090.04812.67
5.3.160.0080.04312.67
5.3.150.0080.03512.67
5.3.140.0070.03512.66
5.3.130.0060.03912.65
5.3.120.0050.03912.66
5.3.110.0080.03712.66
5.3.100.0090.03412.12
5.3.90.0060.03612.08
5.3.80.0080.03412.08
5.3.70.0040.03812.07
5.3.60.0060.03612.06
5.3.50.0070.03812.00
5.3.40.0050.03712.00
5.3.30.0060.03611.95
5.3.20.0070.03711.74
5.3.10.0060.03411.70
5.3.00.0030.03911.69
5.2.170.0060.0299.18
5.2.160.0040.0309.18
5.2.150.0030.0339.19
5.2.140.0060.0309.18
5.2.130.0040.0299.14
5.2.120.0040.0299.14
5.2.110.0070.0279.15
5.2.100.0030.0309.15
5.2.90.0060.0289.14
5.2.80.0050.0309.14
5.2.70.0070.0369.14
5.2.60.0080.0289.10
5.2.50.0030.0319.07
5.2.40.0050.0299.04
5.2.30.0050.0329.01
5.2.20.0040.0369.00
5.2.10.0040.0328.92
5.2.00.0060.0338.78
5.1.60.0050.0248.07
5.1.50.0020.0288.07
5.1.40.0040.0258.05
5.1.30.0040.0338.39
5.1.20.0030.0328.42
5.1.10.0040.0268.15
5.1.00.0040.0258.15
5.0.50.0040.0226.62
5.0.40.0050.0256.48
5.0.30.0030.0316.29
5.0.20.0030.0196.26
5.0.10.0040.0196.24
5.0.00.0040.0306.23
4.4.90.0050.0144.78
4.4.80.0040.0154.76
4.4.70.0020.0164.75
4.4.60.0020.0164.75
4.4.50.0040.0154.77
4.4.40.0070.0214.71
4.4.30.0050.0144.75
4.4.20.0030.0154.84
4.4.10.0050.0144.85
4.4.00.0050.0264.76
4.3.110.0040.0194.67
4.3.100.0040.0184.67
4.3.90.0040.0204.63
4.3.80.0050.0294.59
4.3.70.0060.0204.63
4.3.60.0040.0204.63
4.3.50.0050.0214.63
4.3.40.0080.0254.54
4.3.30.0030.0253.29
4.3.20.0020.0183.27
4.3.10.0020.0183.24
4.3.00.0000.02015.11

preferences:
40.67 ms | 400 KiB | 5 Q