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)
8.3.60.0090.00918.43
8.3.50.0130.01021.70
8.3.40.0090.00619.75
8.3.30.0090.00620.21
8.3.20.0050.00321.16
8.3.10.0080.00023.48
8.3.00.0110.00018.63
8.2.180.0130.00617.25
8.2.170.0120.00322.96
8.2.160.0110.00721.52
8.2.150.0040.00424.18
8.2.140.0050.00524.66
8.2.130.0040.00426.16
8.2.120.0040.00419.38
8.2.110.0030.00622.18
8.2.100.0080.00418.78
8.2.90.0040.00420.41
8.2.80.0060.00318.50
8.2.70.0060.00318.63
8.2.60.0040.00418.93
8.2.50.0030.00618.63
8.2.40.0030.00619.94
8.2.30.0000.00819.07
8.2.20.0030.00618.87
8.2.10.0040.00419.23
8.2.00.0070.00318.87
8.1.280.0150.00025.92
8.1.270.0060.00323.14
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0110.00023.91
8.1.230.0030.00921.89
8.1.220.0030.00618.66
8.1.210.0000.00918.77
8.1.200.0000.01018.35
8.1.190.0060.00318.23
8.1.180.0040.00418.51
8.1.170.0040.00419.59
8.1.160.0030.00523.07
8.1.150.0040.00419.91
8.1.140.0050.00318.46
8.1.130.0060.00318.89
8.1.120.0030.00518.52
8.1.110.0050.00218.52
8.1.100.0030.00618.53
8.1.90.0050.00318.48
8.1.80.0080.00018.57
8.1.70.0040.00418.50
8.1.60.0000.00818.57
8.1.50.0030.00618.50
8.1.40.0040.00418.45
8.1.30.0000.00818.65
8.1.20.0060.00318.63
8.1.10.0000.00918.57
8.1.00.0030.00618.43
8.0.300.0040.00418.77
8.0.290.0000.00817.38
8.0.280.0040.00419.23
8.0.270.0030.00618.98
8.0.260.0070.00018.23
8.0.250.0000.00817.87
8.0.240.0040.00417.69
8.0.230.0060.00317.79
8.0.220.0000.00717.71
8.0.210.0030.00517.83
8.0.200.0080.00017.90
8.0.190.0000.00917.82
8.0.180.0030.00517.90
8.0.170.0040.00417.88
8.0.160.0000.00817.85
8.0.150.0000.00817.72
8.0.140.0050.00517.67
8.0.130.0020.00514.38
8.0.120.0080.00017.72
8.0.110.0000.00817.64
8.0.100.0030.00617.64
8.0.90.0050.00317.82
8.0.80.0060.01217.76
8.0.70.0030.00617.66
8.0.60.0050.00317.81
8.0.50.0040.00417.70
8.0.30.0060.01517.95
8.0.20.0100.01017.87
8.0.10.0000.00817.78
8.0.00.0110.00817.55
7.4.330.0070.00015.00
7.4.320.0070.00017.35
7.4.300.0060.00317.32
7.4.290.0040.00417.39
7.4.280.0060.00317.31
7.4.270.0050.00317.43
7.4.260.0040.00417.42
7.4.250.0030.00617.30
7.4.240.0010.00717.38
7.4.230.0000.00817.49
7.4.220.0070.01317.39
7.4.210.0080.00817.34
7.4.200.0060.00317.56
7.4.160.0100.00717.54
7.4.150.0030.01617.40
7.4.140.0110.01117.86
7.4.130.0090.01217.47
7.4.120.0120.00717.38
7.4.110.0160.01017.56
7.4.100.0070.01717.49
7.4.90.0000.01917.37
7.4.80.0140.00519.39
7.4.70.0070.01417.52
7.4.60.0160.00317.28
7.4.50.0070.00317.54
7.4.40.0150.00317.29
7.4.30.0150.00317.34
7.4.00.0040.00715.78
7.3.330.0070.00014.27
7.3.320.0040.00414.44
7.3.310.0060.00317.27
7.3.300.0040.00417.12
7.3.290.0030.01317.30
7.3.280.0090.01017.22
7.3.270.0120.00917.40
7.3.260.0090.01417.61
7.3.240.0060.01317.28
7.3.230.0030.01417.17
7.3.210.0110.01217.23
7.3.200.0050.01619.39
7.3.190.0060.01217.15
7.3.180.0110.00717.25
7.3.170.0120.00617.26
7.3.160.0110.00817.46
7.2.330.0090.00917.48
7.2.320.0120.01217.38
7.2.310.0110.00717.55
7.2.300.0120.01217.64
7.2.290.0140.01017.67
7.2.60.0040.01116.84
7.2.50.0060.00916.96
7.1.200.0060.00915.92
7.1.70.0000.00816.89
7.1.60.0120.01219.32
7.1.50.0040.01817.07
7.0.200.0070.00716.66

preferences:
47.39 ms | 401 KiB | 5 Q