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 + $ck, $vd + $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)
8.3.60.0110.00418.56
8.3.50.0110.00922.06
8.3.40.0070.00718.84
8.3.30.0150.00018.95
8.3.20.0070.00020.16
8.3.10.0040.00421.73
8.3.00.0000.01117.63
8.2.180.0090.00916.63
8.2.170.0090.00622.96
8.2.160.0030.01020.52
8.2.150.0090.00024.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0080.00022.20
8.2.110.0070.00322.26
8.2.100.0050.00517.75
8.2.90.0040.00419.35
8.2.80.0040.00417.97
8.2.70.0030.00617.75
8.2.60.0040.00417.80
8.2.50.0050.00318.07
8.2.40.0040.00419.94
8.2.30.0020.00518.00
8.2.20.0000.00717.67
8.2.10.0000.00718.12
8.2.00.0040.00417.70
8.1.280.0170.00725.92
8.1.270.0040.00422.14
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00323.92
8.1.230.0110.00017.48
8.1.220.0000.00817.79
8.1.210.0000.00818.77
8.1.200.0040.00417.38
8.1.190.0050.00317.35
8.1.180.0000.00818.10
8.1.170.0040.00418.64
8.1.160.0040.00422.07
8.1.150.0040.00418.95
8.1.140.0060.00317.47
8.1.130.0070.00017.75
8.1.120.0040.00417.41
8.1.110.0050.00317.47
8.1.100.0040.00417.50
8.1.90.0000.00717.42
8.1.80.0040.00417.43
8.1.70.0030.00317.41
8.1.60.0070.00017.58
8.1.50.0000.00817.59
8.1.40.0040.00417.55
8.1.30.0000.01017.57
8.1.20.0000.00717.54
8.1.10.0080.00017.55
8.1.00.0030.00517.52
8.0.300.0070.00018.77
8.0.290.0070.00016.75
8.0.280.0000.00718.48
8.0.270.0030.00317.29
8.0.260.0000.00617.18
8.0.250.0000.00816.94
8.0.240.0030.00317.10
8.0.230.0000.00717.09
8.0.220.0070.00016.97
8.0.210.0000.00816.93
8.0.200.0030.00317.00
8.0.190.0050.00317.07
8.0.180.0000.00717.09
8.0.170.0080.00016.90
8.0.160.0030.00316.87
8.0.150.0050.00316.81
8.0.140.0040.00416.97
8.0.130.0000.00513.46
8.0.120.0000.00716.89
8.0.110.0050.00216.88
8.0.100.0080.00017.01
8.0.90.0030.00516.93
8.0.80.0100.00616.93
8.0.70.0020.00516.96
8.0.60.0000.00717.00
8.0.50.0070.00016.97
8.0.30.0120.00716.90
8.0.20.0110.01117.40
8.0.10.0030.00616.98
8.0.00.0100.00816.95
7.4.330.0030.00315.00
7.4.320.0060.00016.54
7.4.300.0030.00316.58
7.4.290.0030.00316.61
7.4.280.0070.00016.50
7.4.270.0000.00716.51
7.4.260.0040.00416.59
7.4.250.0050.00316.59
7.4.240.0040.00416.55
7.4.230.0000.00716.71
7.4.220.0060.01316.62
7.4.210.0090.00316.54
7.4.200.0040.00416.64
7.4.160.0100.00616.76
7.4.150.0040.01417.40
7.4.140.0150.00317.86
7.4.130.0100.00716.67
7.4.120.0090.00916.47
7.4.110.0110.00716.57
7.4.100.0090.00916.61
7.4.90.0030.02016.60
7.4.80.0070.01119.39
7.4.70.0060.00916.68
7.4.60.0070.01116.50
7.4.50.0040.00416.57
7.4.40.0100.00716.64
7.4.30.0170.00016.67
7.4.00.0070.01015.18
7.3.330.0000.00513.34
7.3.320.0030.00313.45
7.3.310.0030.00316.47
7.3.300.0000.00716.38
7.3.290.0090.00616.42
7.3.280.0080.00916.34
7.3.270.0100.00717.40
7.3.260.0090.00916.57
7.3.240.0080.00916.39
7.3.230.0220.00416.51
7.3.210.0100.00516.36
7.3.200.0120.00919.39
7.3.190.0060.01416.38
7.3.180.0060.00916.59
7.3.170.0030.01316.56
7.3.160.0110.00716.45
7.2.330.0110.00616.77
7.2.320.0090.00916.86
7.2.310.0100.00716.73
7.2.300.0090.00916.63
7.2.290.0110.01116.66
7.2.60.0110.00416.73
7.2.00.0030.01319.21
7.1.200.0090.00015.73
7.1.100.0000.01518.01
7.1.70.0000.00817.16
7.1.60.0150.00919.32
7.1.50.0060.01616.92
7.1.00.0070.07322.54
7.0.200.0000.00916.73
7.0.140.0030.07322.15
7.0.60.0030.08719.83
7.0.50.0070.08317.88
7.0.40.0070.07320.14
7.0.30.0430.04720.06
7.0.20.0430.07720.22
7.0.10.0100.09020.30
7.0.00.0100.08320.33
5.6.280.0070.06721.13
5.6.210.0000.09320.55
5.6.200.0070.08018.19
5.6.190.0130.07020.63
5.6.180.0170.04720.55
5.6.170.0400.08320.55
5.6.160.0030.08320.57
5.6.150.0070.07318.29
5.6.140.0130.08018.26
5.6.130.0070.06718.14
5.6.120.0130.03021.10
5.6.110.0100.04021.00
5.6.100.0070.08320.99
5.6.90.0030.09021.07
5.6.80.0030.08720.40
5.5.350.0170.07720.42
5.5.340.0170.07018.03
5.5.330.0030.04320.13
5.5.320.0300.04020.30
5.5.310.0270.05320.27
5.5.300.0070.08017.94
5.5.290.0130.05317.99
5.5.280.0100.08020.89
5.5.270.0030.05720.87
5.5.260.0100.08020.68
5.5.250.0100.04320.66
5.5.240.0230.05320.25
5.4.450.0630.05719.61
5.4.440.0730.07719.48
5.4.430.0200.04319.46
5.4.420.0630.00019.21
5.4.410.0670.00019.46
5.4.400.0600.00019.25
5.4.390.0630.00019.16
5.4.380.0670.00019.16
5.4.370.0600.00019.21
5.4.360.0630.00019.07
5.4.350.0630.00019.02
5.4.340.0080.03512.02
5.4.320.0060.04312.50
5.4.310.0080.03612.50
5.4.300.0050.03712.50
5.4.290.0080.04812.50
5.4.280.0070.03812.40
5.4.270.0040.03812.40
5.4.260.0040.03912.40
5.4.250.0110.04212.40
5.4.240.0040.04312.40
5.4.230.0070.03612.39
5.4.220.0070.03512.39
5.4.210.0060.03712.39
5.4.200.0040.04112.39
5.4.190.0060.03612.38
5.4.180.0050.03712.39
5.4.170.0040.03712.39
5.4.160.0060.03612.39
5.4.150.0060.03612.39
5.4.140.0030.04012.07
5.4.130.0060.03512.05
5.4.120.0080.03412.02
5.4.110.0050.03612.02
5.4.100.0070.04012.02
5.4.90.0090.03712.01
5.4.80.0050.04012.01
5.4.70.0050.03912.01
5.4.60.0080.03312.01
5.4.50.0040.04212.01
5.4.40.0070.04212.00
5.4.30.0040.04611.99
5.4.20.0060.04411.99
5.4.10.0080.03312.00
5.4.00.0040.04111.49
5.3.290.0060.03912.80
5.3.280.0110.04312.71
5.3.270.0120.04712.73
5.3.260.0050.04012.72
5.3.250.0040.03912.72
5.3.240.0030.04012.72
5.3.230.0040.03912.71
5.3.220.0050.03912.68
5.3.210.0090.03512.68
5.3.200.0060.03612.68
5.3.190.0050.03812.68
5.3.180.0060.03712.67
5.3.170.0050.03712.67
5.3.160.0040.03912.68
5.3.150.0090.03612.67
5.3.140.0050.03812.66
5.3.130.0090.03612.66
5.3.120.0070.03612.66
5.3.110.0060.03712.66
5.3.100.0050.04112.12
5.3.90.0050.03812.11
5.3.80.0060.03612.09
5.3.70.0080.03412.10
5.3.60.0070.04112.08
5.3.50.0070.03912.03
5.3.40.0040.03912.03
5.3.30.0030.03811.99
5.3.20.0090.03611.77
5.3.10.0020.03911.73
5.3.00.0050.04011.72
5.2.170.0040.0329.22
5.2.160.0050.0299.22
5.2.150.0020.0379.22
5.2.140.0040.0339.22
5.2.130.0040.0339.18
5.2.120.0070.0289.18
5.2.110.0090.0259.19
5.2.100.0060.0289.19
5.2.90.0040.0429.18
5.2.80.0030.0399.18
5.2.70.0060.0389.18
5.2.60.0080.0339.13
5.2.50.0020.0359.10
5.2.40.0050.0329.08
5.2.30.0070.0279.05
5.2.20.0020.0349.05
5.2.10.0060.0288.95
5.2.00.0030.0308.81
5.1.60.0040.0248.09
5.1.50.0050.0248.09
5.1.40.0040.0248.07
5.1.30.0060.0258.42
5.1.20.0060.0248.44
5.1.10.0030.0268.16
5.1.00.0030.0268.17
5.0.50.0030.0236.65
5.0.40.0050.0196.51
5.0.30.0030.0326.32
5.0.20.0060.0196.29
5.0.10.0030.0206.26
5.0.00.0030.0326.26
4.4.90.0010.0174.78
4.4.80.0020.0154.75
4.4.70.0020.0194.75
4.4.60.0040.0144.75
4.4.50.0030.0154.77
4.4.40.0010.0274.71
4.4.30.0030.0164.76
4.4.20.0040.0164.84
4.4.10.0030.0154.85
4.4.00.0020.0264.76
4.3.110.0010.0174.67
4.3.100.0020.0214.66
4.3.90.0040.0174.63
4.3.80.0030.0244.58
4.3.70.0030.0144.63
4.3.60.0040.0144.63
4.3.50.0030.0154.63
4.3.40.0010.0264.54
4.3.30.0030.0163.31
4.3.20.0030.0153.29
4.3.10.0020.0153.24
4.3.00.0130.0207.17

preferences:
47.09 ms | 401 KiB | 5 Q