3v4l.org

run code in 300+ PHP versions simultaneously
<?php $root = array_map(function($v) { return 'cat'.$v; }, range(1,10)); //array( 1=>'cat1', 2=>'cat2', 3=>'cat3' ); $child_1 = array_map(function($v) { return 'sub_cat'.$v; },range(1,16)); //array( 1=>'sub_cat1', 2=>'sub_cat2', 3=>'sub_cat3' ); $child_2 = array_map(function($v) { return 'sub_sub_cat'.$v; },range(1.30)); //array( 1=>'sub_sub_cat1', 2=>'sub_sub_cat2', 3=>'sub_sub_cat3' ); function getAllCombinationsArray($root, $child_1, $child_2){ $return = array(); foreach($root as $fk => $fv){ foreach($child_1 as $ck => $cv){ $cid = $fk.'_'.$ck; $cname = $fv.' -> '.$cv; foreach($child_2 as $ck2 => $cv2){ $id = $cid.'_'.$ck2; $name = $cname.' -> '.$cv2; $return[$id] = $name; } } } return $return; } print_r(getAllCombinationsArray($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)
8.3.60.0140.00718.55
8.3.50.0170.00821.13
8.3.40.0110.00418.84
8.3.30.0100.00319.12
8.3.20.0040.00420.35
8.3.10.0080.00023.66
8.3.00.0070.00419.38
8.2.180.0140.00316.75
8.2.170.0070.00722.96
8.2.160.0100.00320.45
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0040.00422.13
8.2.110.0000.00822.23
8.2.100.0090.00317.91
8.2.90.0080.00017.59
8.2.80.0060.00318.88
8.2.70.0000.00817.63
8.2.60.0040.00417.75
8.2.50.0000.00817.59
8.2.40.0060.00319.48
8.2.30.0000.00818.09
8.2.20.0020.00517.83
8.2.10.0040.00417.96
8.2.00.0030.00617.77
8.1.280.0090.00625.92
8.1.270.0050.00322.19
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0060.00320.35
8.1.230.0080.00417.70
8.1.220.0080.00017.79
8.1.210.0030.00518.77
8.1.200.0000.00817.22
8.1.190.0040.00417.23
8.1.180.0030.00618.10
8.1.170.0000.00717.65
8.1.160.0040.00422.07
8.1.150.0050.00218.84
8.1.140.0040.00417.39
8.1.130.0040.00417.85
8.1.120.0070.00017.49
8.1.110.0040.00417.47
8.1.100.0040.00417.40
8.1.90.0000.00717.50
8.1.80.0070.00017.52
8.1.70.0040.00417.44
8.1.60.0070.00017.53
8.1.50.0000.00917.56
8.1.40.0040.00417.52
8.1.30.0080.00017.72
8.1.20.0000.00717.70
8.1.10.0040.00417.48
8.1.00.0000.00817.51
8.0.300.0030.00718.77
8.0.290.0040.00416.75
8.0.280.0030.00318.37
8.0.270.0070.00017.31
8.0.260.0000.00817.28
8.0.250.0030.00316.92
8.0.240.0030.00317.00
8.0.230.0000.00716.91
8.0.220.0080.00017.04
8.0.210.0030.00316.95
8.0.200.0030.00517.03
8.0.190.0030.00617.05
8.0.180.0040.00416.99
8.0.170.0000.00817.05
8.0.160.0040.00416.97
8.0.150.0040.00416.82
8.0.140.0030.00516.91
8.0.130.0030.00313.33
8.0.120.0000.00716.95
8.0.110.0000.00816.91
8.0.100.0070.00016.93
8.0.90.0000.00816.97
8.0.80.0100.00616.97
8.0.70.0070.00316.87
8.0.60.0040.00416.84
8.0.50.0040.00416.84
8.0.30.0110.00916.99
8.0.20.0150.00717.40
8.0.10.0070.00017.14
8.0.00.0110.00716.73
7.4.330.0000.00515.00
7.4.320.0000.00616.62
7.4.300.0030.00316.47
7.4.290.0000.00716.52
7.4.280.0000.00716.59
7.4.270.0080.00016.54
7.4.260.0030.00616.51
7.4.250.0050.00316.48
7.4.240.0070.00016.60
7.4.230.0030.00316.73
7.4.220.0110.01816.73
7.4.210.0110.00416.55
7.4.200.0040.00416.52
7.4.160.0040.01416.60
7.4.150.0030.01517.40
7.4.140.0160.00717.86
7.4.130.0120.00616.52
7.4.120.0100.01016.43
7.4.110.0170.00816.70
7.4.100.0030.01616.63
7.4.90.0030.01616.46
7.4.80.0060.01219.39
7.4.70.0090.00916.54
7.4.60.0070.01016.56
7.4.50.0000.00516.46
7.4.40.0060.01216.55
7.4.30.0070.01016.59
7.4.00.0110.00414.81
7.3.330.0060.00013.21
7.3.320.0030.00513.38
7.3.310.0030.00316.36
7.3.300.0070.00016.37
7.3.290.0170.00316.36
7.3.280.0120.00516.34
7.3.270.0040.01717.40
7.3.260.0120.00616.53
7.3.250.0110.00616.47
7.3.240.0060.01316.46
7.3.230.0190.00716.55
7.3.210.0070.01016.57
7.3.200.0110.01419.39
7.3.190.0000.01816.66
7.3.180.0060.01216.64
7.3.170.0070.01116.38
7.3.160.0110.00816.49
7.3.10.0080.00916.67
7.3.00.0090.00716.72
7.2.330.0090.00916.52
7.2.320.0100.01016.68
7.2.310.0070.01016.32
7.2.300.0150.00816.82
7.2.290.0000.01916.66
7.2.130.0060.01016.66
7.2.120.0060.00516.93
7.2.110.0050.00716.96
7.2.100.0030.00916.80
7.2.90.0060.00716.82
7.2.80.0070.00617.01
7.2.70.0050.00816.73
7.2.60.0110.00316.91
7.2.50.0070.00416.84
7.2.40.0070.00516.86
7.2.30.0030.01116.99
7.2.20.0090.00416.96
7.2.10.0020.01516.87
7.2.00.0020.01316.87
7.1.250.0020.01215.75
7.1.70.0040.00416.88
7.1.60.0040.02219.32
7.1.50.0030.01016.83
7.1.00.0070.07322.32
7.0.200.0070.00316.63
7.0.140.0070.07022.00
7.0.60.0100.06019.96
7.0.50.0130.07317.88
7.0.40.0100.05720.20
7.0.30.0370.06720.13
7.0.20.0330.08320.23
7.0.10.0000.08020.21
7.0.00.0070.08320.24
5.6.280.0070.07021.08
5.6.210.0100.07320.66
5.6.200.0100.08018.26
5.6.190.0030.05720.64
5.6.180.0330.04720.46
5.6.170.0170.05020.51
5.6.160.0030.04320.46
5.6.150.0030.04018.17
5.6.140.0030.04718.25
5.6.130.0100.08318.17
5.6.120.0100.03320.79
5.6.110.0170.07321.14
5.6.100.0030.04321.00
5.6.90.0100.07721.11
5.6.80.0100.04020.54
5.5.350.0100.08320.42
5.5.340.0130.06017.97
5.5.330.0070.06020.25
5.5.320.0230.05320.24
5.5.310.0270.06320.37
5.5.300.0070.06717.95
5.5.290.0100.04717.96
5.5.280.0100.05020.90
5.5.270.0030.04020.78
5.5.260.0230.07320.80
5.5.250.0130.07320.69
5.5.240.0370.03720.20
5.4.450.0130.06019.20
5.4.440.0600.06019.48
5.4.430.0730.07319.57
5.4.420.0670.00019.36
5.4.410.0670.00019.42
5.4.400.0830.00019.12
5.4.390.0630.00019.25
5.4.380.0700.00019.11
5.4.370.0670.00019.03
5.4.360.0630.00019.12
5.4.350.0630.00019.04
5.4.340.0110.03612.02
5.4.320.0050.04012.51
5.4.310.0060.03912.51
5.4.300.0050.04012.51
5.4.290.0050.04112.51
5.4.280.0090.03912.41
5.4.270.0060.04412.40
5.4.260.0070.03912.41
5.4.250.0060.04312.41
5.4.240.0060.04312.40
5.4.230.0090.04512.40
5.4.220.0070.03612.40
5.4.210.0060.03912.40
5.4.200.0060.03912.40
5.4.190.0050.03912.39
5.4.180.0100.04012.39
5.4.170.0040.03812.40
5.4.160.0060.03712.39
5.4.150.0060.03612.39
5.4.140.0080.03512.08
5.4.130.0050.03812.06
5.4.120.0080.03612.02
5.4.110.0060.03612.02
5.4.100.0100.03212.02
5.4.90.0090.03712.02
5.4.80.0130.03912.02
5.4.70.0070.03612.02
5.4.60.0070.03512.01
5.4.50.0110.03712.02
5.4.40.0010.04012.00
5.4.30.0080.03411.99
5.4.20.0100.03111.99
5.4.10.0040.03911.99
5.4.00.0090.04911.49
5.3.290.0070.04012.80
5.3.280.0080.04312.71
5.3.270.0080.04712.72
5.3.260.0060.04112.72
5.3.250.0070.04312.71
5.3.240.0100.03612.72
5.3.230.0060.04012.71
5.3.220.0020.04212.68
5.3.210.0090.04412.68
5.3.200.0050.03912.68
5.3.190.0070.04012.68
5.3.180.0060.04312.68
5.3.170.0050.04112.67
5.3.160.0060.03712.67
5.3.150.0100.03412.67
5.3.140.0070.03612.66
5.3.130.0050.04012.66
5.3.120.0070.04712.66
5.3.110.0070.03912.66
5.3.100.0060.03812.13
5.3.90.0050.03912.11
5.3.80.0070.03712.10
5.3.70.0080.03812.10
5.3.60.0050.04012.08
5.3.50.0040.03912.03
5.3.40.0070.03812.03
5.3.30.0050.03812.00
5.3.20.0050.03911.77
5.3.10.0080.04311.74
5.3.00.0070.03911.72
5.2.170.0060.0329.18
5.2.160.0070.0289.18
5.2.150.0060.0319.18
5.2.140.0030.0349.18
5.2.130.0050.0299.14
5.2.120.0080.0269.14
5.2.110.0040.0309.14
5.2.100.0060.0289.14
5.2.90.0030.0309.14
5.2.80.0070.0359.14
5.2.70.0070.0279.14
5.2.60.0030.0329.09
5.2.50.0050.0359.06
5.2.40.0070.0349.03
5.2.30.0050.0299.01
5.2.20.0110.0319.00
5.2.10.0060.0318.93
5.2.00.0040.0378.79
5.1.60.0020.0268.07
5.1.50.0040.0248.07
5.1.40.0040.0268.05
5.1.30.0050.0308.39
5.1.20.0020.0298.42
5.1.10.0060.0258.14
5.1.00.0040.0328.14
5.0.50.0020.0216.63
5.0.40.0020.0236.48
5.0.30.0050.0356.29
5.0.20.0050.0216.27
5.0.10.0050.0236.24
5.0.00.0090.0336.23
4.4.90.0030.0184.78
4.4.80.0030.0154.75
4.4.70.0040.0144.76
4.4.60.0040.0174.75
4.4.50.0050.0144.77
4.4.40.0040.0254.71
4.4.30.0040.0174.76
4.4.20.0050.0164.85
4.4.10.0040.0154.85
4.4.00.0020.0254.76
4.3.110.0030.0154.67
4.3.100.0000.0174.66
4.3.90.0000.0174.64
4.3.80.0010.0274.58
4.3.70.0030.0224.63
4.3.60.0010.0164.63
4.3.50.0050.0124.63
4.3.40.0030.0234.54
4.3.30.0030.0153.29
4.3.20.0000.0213.27
4.3.10.0010.0173.22
4.3.00.0170.0307.31

preferences:
44.32 ms | 401 KiB | 5 Q