3v4l.org

run code in 300+ PHP versions simultaneously
<?php $root = array( 1=>'cat1', 2=>'cat2', 3=>'cat3' ); $child_1 = array( 1=>'sub_cat1', 2=>'sub_cat2', 3=>'sub_cat3' ); $child_2 = array( 1=>'sub_sub_cat1', 2=>'sub_sub_cat2', 3=>'sub_sub_cat3' ); function getAllCombinationsArray($source_arrays = array(), $kd = array(), $vd = array()){ $return = array(); foreach(array_shift($source_arrays) as $ck => $cv) { if(!empty($source_arrays)) { $return += getAllCombinationsArray($source_arrays, $kd + (array)$ck, $vd + (array)$cv); } else { $return[implode('_', $kd)] = implode(' -> ', $vd); } } return $return; } print_r(getAllCombinationsArray(array($root, $child_1, $child_2)));

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)
8.3.40.0040.01118.84
8.3.30.0110.00319.22
8.3.20.0080.00020.33
8.3.10.0050.00321.89
8.3.00.0070.00317.63
8.2.170.0070.00722.96
8.2.160.0190.00018.88
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0030.00622.13
8.2.110.0100.00022.22
8.2.100.0130.00017.88
8.2.90.0000.00819.22
8.2.80.0060.00317.97
8.2.70.0000.00917.88
8.2.60.0030.00618.04
8.2.50.0040.00418.07
8.2.40.0040.00418.28
8.2.30.0030.00518.02
8.2.20.0000.00917.77
8.2.10.0040.00418.06
8.2.00.0050.00517.76
8.1.270.0060.00322.09
8.1.260.0050.00226.35
8.1.250.0070.00028.09
8.1.240.0050.00523.98
8.1.230.0040.00817.48
8.1.220.0050.00317.76
8.1.210.0000.00718.77
8.1.200.0030.00617.34
8.1.190.0040.00417.35
8.1.180.0050.00218.10
8.1.170.0030.00518.66
8.1.160.0040.00422.08
8.1.150.0000.00718.84
8.1.140.0040.00417.34
8.1.130.0080.00017.84
8.1.120.0040.00417.45
8.1.110.0040.00417.53
8.1.100.0000.00817.46
8.1.90.0050.00217.44
8.1.80.0000.00717.44
8.1.70.0040.00417.39
8.1.60.0000.00817.51
8.1.50.0040.00417.43
8.1.40.0040.00417.52
8.1.30.0000.01017.64
8.1.20.0080.00017.62
8.1.10.0000.00717.61
8.1.00.0040.00417.56
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0040.00418.47
8.0.270.0000.00717.15
8.0.260.0070.00017.29
8.0.250.0080.00017.02
8.0.240.0030.00317.05
8.0.230.0040.00417.01
8.0.220.0030.00316.98
8.0.210.0030.00317.03
8.0.200.0030.00317.02
8.0.190.0040.00416.98
8.0.180.0000.00716.95
8.0.170.0000.00816.98
8.0.160.0070.00017.01
8.0.150.0000.00716.88
8.0.140.0050.00216.83
8.0.130.0060.00013.44
8.0.120.0000.00716.83
8.0.110.0040.00416.89
8.0.100.0040.00417.00
8.0.90.0030.00716.80
8.0.80.0060.00916.97
8.0.70.0000.00717.01
8.0.60.0040.00416.81
8.0.50.0000.00716.87
8.0.30.0090.01017.17
8.0.20.0140.00517.40
8.0.10.0030.00617.16
8.0.00.0130.00517.07
7.4.330.0040.00015.00
7.4.320.0060.00016.43
7.4.300.0060.00016.37
7.4.290.0030.00316.55
7.4.280.0000.00716.54
7.4.270.0070.00016.43
7.4.260.0000.00716.52
7.4.250.0050.00316.48
7.4.240.0020.00516.52
7.4.230.0000.00716.50
7.4.220.0070.01316.47
7.4.210.0030.01416.70
7.4.200.0030.00316.62
7.4.160.0110.00516.57
7.4.150.0090.00917.40
7.4.140.0100.00917.86
7.4.130.0060.01216.46
7.4.120.0120.00916.47
7.4.110.0090.00916.48
7.4.100.0070.01116.48
7.4.90.0090.00816.39
7.4.80.0110.00719.39
7.4.70.0150.00616.65
7.4.60.0080.00816.56
7.4.50.0000.00816.33
7.4.40.0070.01016.36
7.4.30.0100.00516.58
7.4.00.0130.00314.98
7.3.330.0050.00013.34
7.3.320.0030.00313.16
7.3.310.0040.00416.45
7.3.300.0030.00316.42
7.3.290.0070.00716.36
7.3.280.0100.00816.35
7.3.270.0150.00317.40
7.3.260.0090.00916.22
7.3.250.0080.01016.44
7.3.240.0090.00916.39
7.3.230.0190.00316.57
7.3.210.0120.00616.41
7.3.200.0040.01619.39
7.3.190.0080.00816.43
7.3.180.0120.00416.67
7.3.170.0100.00716.45
7.3.160.0100.00716.65
7.2.330.0030.01316.75
7.2.320.0100.01016.67
7.2.310.0060.00916.44
7.2.300.0100.00716.74
7.2.290.0160.00016.39
7.2.00.0070.01119.01
7.1.100.0100.00317.89
7.1.70.0070.00017.09
7.1.60.0130.01019.32
7.1.50.0040.01816.53
7.1.00.0000.08022.42
7.0.200.0050.00316.56
7.0.140.0030.07321.97
7.0.70.4200.04019.88
7.0.60.0030.04019.87
7.0.50.0070.08317.88
7.0.40.0070.08720.10
7.0.30.0200.03720.17
7.0.20.0270.08320.30
7.0.10.0230.08720.21
7.0.00.0000.05020.27
5.6.280.0070.07020.78
5.6.210.0100.07320.49
5.6.200.0000.04718.18
5.6.190.0070.06320.64
5.6.180.0230.08020.56
5.6.170.0430.06720.41
5.6.160.0070.08720.72
5.6.150.0100.06018.29
5.6.140.0030.05018.21
5.6.130.0100.04718.18
5.6.120.0130.06720.99
5.6.110.0000.04321.13
5.6.100.0130.07321.11
5.6.90.0070.03720.87
5.6.80.0070.08020.29
5.6.70.0330.07020.28
5.5.350.0100.07320.44
5.5.340.0000.08018.05
5.5.330.0100.04020.57
5.5.320.0000.09020.38
5.5.310.0230.08320.36
5.5.300.0030.04017.93
5.5.290.0170.07018.00
5.5.280.0030.08320.98
5.5.270.0070.08720.87
5.5.260.0130.04720.89
5.5.250.0030.05720.55
5.5.240.0030.04020.24
5.4.450.0770.05019.39
5.4.440.0770.06319.61
5.4.430.0930.05719.62
5.4.420.0630.00019.68
5.4.410.0630.00019.30
5.4.400.0630.00019.23
5.4.390.0600.00019.09
5.4.380.0630.00019.16
5.4.370.0630.00019.26
5.4.360.0600.00019.12
5.4.350.0630.00019.25
5.4.340.0080.03312.01
5.4.320.0050.04112.50
5.4.310.0040.04012.50
5.4.300.0090.04112.51
5.4.290.0070.04212.50
5.4.280.0080.03612.40
5.4.270.0080.03712.39
5.4.260.0050.04112.40
5.4.250.0060.04012.40
5.4.240.0060.03612.40
5.4.230.0040.03912.39
5.4.220.0080.03312.39
5.4.210.0050.03612.39
5.4.200.0050.04112.39
5.4.190.0080.03412.39
5.4.180.0090.03312.39
5.4.170.0070.03512.39
5.4.160.0050.03712.39
5.4.150.0070.03512.38
5.4.140.0080.03512.07
5.4.130.0060.03612.06
5.4.120.0080.03312.02
5.4.110.0050.03612.01
5.4.100.0060.03512.01
5.4.90.0090.03312.02
5.4.80.0030.05012.01
5.4.70.0090.03112.01
5.4.60.0100.03112.01
5.4.50.0070.03412.01
5.4.40.0070.03312.00
5.4.30.0030.04212.00
5.4.20.0080.03911.99
5.4.10.0060.03311.99
5.4.00.0040.03811.49
5.3.290.0060.03912.80
5.3.280.0060.03812.71
5.3.270.0050.04012.72
5.3.260.0050.04012.72
5.3.250.0070.03712.72
5.3.240.0070.03712.72
5.3.230.0080.03612.71
5.3.220.0080.03512.68
5.3.210.0030.04412.68
5.3.200.0030.04212.68
5.3.190.0050.03812.68
5.3.180.0070.03512.67
5.3.170.0040.03812.67
5.3.160.0050.03812.68
5.3.150.0040.04012.67
5.3.140.0050.03712.66
5.3.130.0070.04212.66
5.3.120.0120.04012.66
5.3.110.0030.04312.65
5.3.100.0090.03912.12
5.3.90.0080.04312.10
5.3.80.0050.04012.09
5.3.70.0060.03512.09
5.3.60.0100.03112.08
5.3.50.0040.03812.02
5.3.40.0050.03712.03
5.3.30.0060.03611.99
5.3.20.0070.03311.77
5.3.10.0040.03711.73
5.3.00.0060.03711.71
5.2.170.0080.0279.22
5.2.160.0030.0319.22
5.2.150.0070.0299.22
5.2.140.0010.0349.22
5.2.130.0040.0309.18
5.2.120.0030.0309.18
5.2.110.0040.0329.18
5.2.100.0080.0329.18
5.2.90.0020.0319.18
5.2.80.0040.0319.18
5.2.70.0060.0349.18
5.2.60.0050.0329.13
5.2.50.0100.0309.10
5.2.40.0020.0319.08
5.2.30.0010.0339.05
5.2.20.0040.0299.04
5.2.10.0050.0318.95
5.2.00.0040.0328.82
5.1.60.0030.0318.10
5.1.50.0030.0348.09
5.1.40.0040.0258.07
5.1.30.0050.0288.43
5.1.20.0070.0298.44
5.1.10.0040.0268.17
5.1.00.0040.0258.17
5.0.50.0050.0266.65
5.0.40.0030.0196.50
5.0.30.0030.0376.32
5.0.20.0020.0226.29
5.0.10.0060.0176.27
5.0.00.0060.0286.26
4.4.90.0030.0154.78
4.4.80.0030.0154.75
4.4.70.0050.0134.75
4.4.60.0060.0154.76
4.4.50.0040.0184.77
4.4.40.0020.0274.71
4.4.30.0020.0164.76
4.4.20.0050.0194.85
4.4.10.0030.0214.85
4.4.00.0040.0274.76
4.3.110.0040.0154.66
4.3.100.0010.0174.66
4.3.90.0040.0134.63
4.3.80.0040.0234.58
4.3.70.0050.0124.63
4.3.60.0030.0144.63
4.3.50.0020.0164.62
4.3.40.0030.0234.54
4.3.30.0030.0163.31
4.3.20.0000.0193.30
4.3.10.0020.0163.25
4.3.00.0170.0237.17

preferences:
39.68 ms | 400 KiB | 5 Q