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'.$v; },range(1,30)); //array( 1=>'sub_sub_cat1', 2=>'sub_sub_cat2', 3=>'sub_sub_cat3' ); function getAllCombinationsArray($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 { $return[$kd.$ck] = $vd.$cv; } } 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)
8.3.60.0120.00618.34
8.3.50.0140.01021.64
8.3.40.0100.01319.90
8.3.30.0080.00820.38
8.3.20.0040.00421.50
8.3.10.0080.00023.57
8.3.00.0120.00018.63
8.2.180.0110.00817.75
8.2.170.0060.01022.96
8.2.160.0140.00721.60
8.2.150.0100.00624.18
8.2.140.0030.00624.66
8.2.130.0080.00026.16
8.2.120.0080.00021.97
8.2.110.0160.00021.00
8.2.100.0100.00318.88
8.2.90.0040.00420.47
8.2.80.0040.00418.88
8.2.70.0070.00318.88
8.2.60.0060.00319.29
8.2.50.0000.00818.63
8.2.40.0040.00419.95
8.2.30.0080.00019.21
8.2.20.0040.00418.99
8.2.10.0080.00019.41
8.2.00.0030.00618.86
8.1.280.0090.00625.92
8.1.270.0090.00023.91
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00324.02
8.1.230.0080.00618.48
8.1.220.0000.00818.79
8.1.210.0040.00418.77
8.1.200.0060.00318.47
8.1.190.0030.00618.73
8.1.180.0090.00018.76
8.1.170.0060.00319.82
8.1.160.0040.00423.19
8.1.150.0000.00820.05
8.1.140.0040.00418.70
8.1.130.0030.00519.06
8.1.120.0030.00518.56
8.1.110.0030.00618.54
8.1.100.0040.00418.69
8.1.90.0030.00618.63
8.1.80.0000.00818.69
8.1.70.0000.00818.53
8.1.60.0000.01018.79
8.1.50.0030.00618.74
8.1.40.0030.00618.54
8.1.30.0060.00318.66
8.1.20.0030.00718.67
8.1.10.0060.00318.65
8.1.00.0090.00018.61
8.0.300.0050.00318.77
8.0.290.0000.00817.75
8.0.280.0000.00819.38
8.0.270.0050.00318.31
8.0.260.0040.00418.43
8.0.250.0000.00818.01
8.0.240.0040.00417.92
8.0.230.0000.00817.96
8.0.220.0040.00417.87
8.0.210.0000.00917.93
8.0.200.0060.00318.04
8.0.190.0030.00618.02
8.0.180.0000.01018.08
8.0.170.0000.01018.00
8.0.160.0000.00918.08
8.0.150.0030.00617.88
8.0.140.0000.00817.86
8.0.130.0040.00414.55
8.0.120.0030.00618.00
8.0.110.0000.00918.00
8.0.100.0090.00017.84
8.0.90.0060.00317.91
8.0.80.0070.01017.98
8.0.70.0030.00617.86
8.0.60.0090.00017.98
8.0.50.0030.00618.02
8.0.30.0090.01318.22
8.0.20.0070.01318.01
8.0.10.0090.00017.93
8.0.00.0140.00617.76
7.4.330.0040.00415.14
7.4.320.0070.00017.51
7.4.300.0000.00817.58
7.4.290.0080.00017.53
7.4.280.0040.00717.63
7.4.270.0060.00317.63
7.4.260.0050.00317.59
7.4.250.0090.00017.52
7.4.240.0030.00617.55
7.4.230.0040.00417.61
7.4.220.0090.01317.43
7.4.210.0030.01317.71
7.4.200.0040.00417.54
7.4.160.0150.00917.38
7.4.150.0060.01417.51
7.4.140.0140.01117.86
7.4.130.0190.00817.66
7.4.120.0090.01417.63
7.4.110.0030.01717.64
7.4.100.0110.01117.60
7.4.90.0140.00517.55
7.4.80.0160.00319.39
7.4.70.0060.01617.60
7.4.60.0100.01017.64
7.4.50.0030.00717.27
7.4.40.0160.01317.57
7.4.30.0090.00917.70
7.3.330.0030.00514.55
7.3.320.0070.00014.30
7.3.310.0040.00417.48
7.3.300.0080.00017.46
7.3.290.0080.00817.41
7.3.280.0060.01117.41
7.3.270.0130.01017.48
7.3.260.0120.00817.56
7.3.240.0130.01217.38
7.3.230.0110.01117.49
7.3.210.0110.01417.48
7.3.200.0120.01519.39
7.3.190.0100.01017.33
7.3.180.0140.00617.48
7.3.170.0040.01717.41
7.3.160.0000.01817.47
7.2.330.0070.01517.76
7.2.320.0170.00817.63
7.2.310.0170.00617.42
7.2.300.0100.01017.59
7.2.290.0150.00717.62
7.2.100.1190.00315.46
7.2.90.0860.00915.64
7.2.80.0170.00815.73
7.2.70.0960.00615.80
7.2.60.0720.01315.61
7.2.50.0930.00415.96
7.2.40.0110.01115.64
7.2.30.0600.00815.87
7.2.20.0980.00915.67
7.2.10.0140.00715.86
7.2.00.0890.01216.04
7.1.220.0930.00414.95
7.1.210.0140.00415.03
7.1.200.0110.01115.02
7.1.190.0910.00014.96
7.1.180.1040.00014.66
7.1.170.0960.00314.93
7.1.160.0770.00714.95
7.1.150.1030.00415.03
7.1.140.1160.00914.71
7.1.130.0910.00714.69
7.1.120.0920.00714.43
7.1.110.1080.00614.86
7.1.100.0910.00614.95
7.1.90.1010.00814.98
7.1.80.0100.00714.64
7.1.70.1090.00314.73
7.1.60.1540.00332.91
7.1.50.1310.01332.92
7.1.40.0530.00633.16
7.1.30.0280.00633.00
7.1.20.0890.00933.05
7.1.10.0230.00314.71
7.1.00.1300.01014.97
7.0.310.0140.01414.48
7.0.300.0520.00614.42
7.0.290.1180.01514.32
7.0.280.0300.00314.16
7.0.270.1200.01914.11
7.0.260.1300.00614.27
7.0.250.0450.01113.90
7.0.240.0200.02414.12
7.0.230.0420.00913.94
7.0.220.0650.02013.98
7.0.210.0700.02114.25
7.0.200.1400.01114.08
7.0.190.1330.00614.09
7.0.180.1390.01314.04
7.0.170.1220.01214.50
7.0.160.0650.00814.60
7.0.150.0140.01114.21
7.0.140.1490.02314.21
7.0.130.1610.01114.41
7.0.120.0980.01314.18
7.0.110.0320.02014.34
7.0.100.1720.01914.57
7.0.90.0340.00914.50
7.0.80.1610.00914.38
7.0.70.1470.00614.50
7.0.60.0670.00614.52
7.0.50.1480.00614.23
7.0.40.0400.00314.57
7.0.30.0350.00814.17
7.0.20.1390.00614.32
7.0.10.0700.01114.50
7.0.00.1630.00614.27
5.6.380.0350.01115.25
5.6.370.0080.01915.23
5.6.360.0150.01215.49
5.6.350.0150.01515.29
5.6.340.0170.01415.36
5.6.330.0080.02115.23
5.6.320.0130.01715.64
5.6.310.0270.01915.43
5.6.300.0350.01215.52
5.6.290.0130.01915.74
5.6.280.0460.01515.50
5.6.270.0410.01315.28
5.6.260.0040.04015.68
5.6.250.0280.01415.60
5.6.240.0250.02215.33
5.6.230.0180.01815.55
5.6.220.0260.01315.45
5.6.210.0280.00915.64
5.6.200.0180.01115.60
5.6.190.0430.00815.43
5.6.180.0190.02515.55
5.6.170.0330.00815.35
5.6.160.0320.01215.37
5.6.150.0320.01015.60
5.6.140.0330.01215.35
5.6.130.0320.00815.27
5.6.120.0280.00915.53
5.6.110.0210.00715.60
5.6.100.0210.01615.39
5.6.90.0280.01915.52
5.6.80.0220.01115.23
5.6.70.0310.01215.49
5.6.60.0230.01615.60
5.6.50.0390.02515.47
5.6.40.0510.00915.54
5.6.30.0230.01015.50
5.6.20.0210.02115.47
5.5.380.0150.00612.66
5.5.370.0180.02212.66
5.5.360.0230.01412.66
5.5.350.0390.00412.66
5.5.340.0160.02012.66
5.5.330.0330.01112.66
5.5.320.0410.01412.66
5.5.310.0300.01012.66
5.5.300.0270.01112.66
5.5.290.0260.01612.66
5.5.280.0350.00612.66
5.5.270.0120.01212.66
5.5.260.0160.01612.66
5.5.250.0310.00312.66
5.5.240.0230.01412.66
5.5.230.0180.01412.66
5.5.220.0250.02512.66
5.5.210.0250.01312.66
5.5.200.0290.00912.66
5.5.190.0100.02012.66
5.4.450.0310.01112.66
5.4.440.0370.02012.66
5.4.430.0140.01012.66
5.4.420.0160.01012.66
5.4.410.0180.01912.66
5.4.400.0280.01012.66
5.4.390.0260.01712.66
5.4.380.0250.01312.66
5.4.370.0370.01512.66
5.4.360.0240.01612.66
5.4.350.0400.00412.66

preferences:
69.37 ms | 401 KiB | 5 Q