3v4l.org

run code in 300+ PHP versions simultaneously
<?php $links = [ [ 1, 3], [ 3, 5], [ 3, 7], [ 3, 9], [ 1, 10], [10, 15], ]; $input = array_map(function ($link) { return ['id' => $link[1], 'parent' => $link[0]]; }, $links); function buildTreeMap($input, $child = 'id', $parent = 'parent') { $map = array(); foreach ($input as $node) { // init self if (!array_key_exists($node[$child], $map)) { $map[$node[$child]] = []; } // init parent if (!array_key_exists($node[$parent], $map)) { $map[$node[$parent]] = []; } // add to parent $map[$node[$parent]][$node[$child]] =& $map[$node[$child]]; } return $map; } print_r( buildTreeMap($input) );

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)
8.3.70.0140.00418.31
8.3.60.0140.00018.55
8.3.50.0160.00522.05
8.3.40.0090.00918.88
8.3.30.0070.01119.26
8.3.20.0070.00020.24
8.3.10.0040.00420.48
8.3.00.0050.00319.38
8.2.180.0180.00016.50
8.2.170.0040.01122.96
8.2.160.0070.01020.36
8.2.150.0070.00424.18
8.2.140.0130.00324.66
8.2.130.0070.00026.16
8.2.120.0040.00422.29
8.2.110.0100.00022.13
8.2.100.0070.00418.16
8.2.90.0050.00317.74
8.2.80.0030.00619.66
8.2.70.0030.00618.05
8.2.60.0040.00417.93
8.2.50.0050.00318.10
8.2.40.0040.00420.55
8.2.30.0000.00819.17
8.2.20.0000.00817.73
8.2.10.0070.00018.06
8.2.00.0030.00517.75
8.1.280.0060.00925.92
8.1.270.0040.00423.84
8.1.260.0030.00526.35
8.1.250.0070.00028.09
8.1.240.0000.00922.07
8.1.230.0060.00620.80
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.36
8.1.190.0040.00417.22
8.1.180.0000.00818.10
8.1.170.0040.00418.65
8.1.160.0000.00721.91
8.1.150.0040.00418.91
8.1.140.0040.00417.45
8.1.130.0080.00017.90
8.1.120.0000.00717.38
8.1.110.0040.00417.48
8.1.100.0000.00817.44
8.1.90.0030.00317.52
8.1.80.0000.00717.44
8.1.70.0030.00317.41
8.1.60.0000.00917.64
8.1.50.0080.00017.54
8.1.40.0030.00617.57
8.1.30.0080.00017.61
8.1.20.0000.00817.51
8.1.10.0020.00517.61
8.1.00.0070.00317.51
8.0.300.0000.00821.38
8.0.290.0000.00816.63
8.0.280.0000.00718.37
8.0.270.0080.00017.31
8.0.260.0030.00317.23
8.0.250.0020.00516.88
8.0.240.0000.00716.87
8.0.230.0070.00016.85
8.0.220.0000.00716.89
8.0.210.0070.00016.92
8.0.200.0000.00616.86
8.0.190.0030.00516.95
8.0.180.0000.00716.90
8.0.170.0000.00816.83
8.0.160.0000.00816.96
8.0.150.0040.00416.84
8.0.140.0070.00016.82
8.0.130.0030.00313.37
8.0.120.0040.00416.78
8.0.110.0000.00716.88
8.0.100.0000.00716.88
8.0.90.0030.00516.89
8.0.80.0060.01016.95
8.0.70.0000.00716.73
8.0.60.0020.00516.96
8.0.50.0040.00416.75
8.0.30.0110.01117.00
8.0.20.0180.00017.40
8.0.10.0000.00716.89
8.0.00.0110.00916.71
7.4.330.0020.00215.02
7.4.320.0060.00016.59
7.4.300.0030.00316.63
7.4.290.0000.00716.59
7.4.280.0050.00316.47
7.4.270.0000.00816.63
7.4.260.0040.00416.48
7.4.250.0020.00516.59
7.4.240.0020.00616.54
7.4.230.0000.00716.67
7.4.220.0120.00616.46
7.4.210.0080.00616.54
7.4.200.0000.00916.65
7.4.160.0090.00916.46
7.4.150.0070.01717.40
7.4.140.0110.00717.86
7.4.130.0120.00616.46
7.4.120.0080.01116.52
7.4.110.0060.01216.39
7.4.100.0100.00716.56
7.4.90.0140.00316.54
7.4.80.0150.00419.37
7.4.70.0140.00616.54
7.4.60.0090.00816.38
7.4.50.0040.00416.29
7.4.40.0100.00716.52
7.4.30.0110.00516.52
7.4.00.0090.00414.83
7.3.330.0000.00613.38
7.3.320.0050.00013.34
7.3.310.0000.00716.40
7.3.300.0030.00316.39
7.3.290.0060.01316.38
7.3.280.0090.01016.39
7.3.270.0070.01117.40
7.3.260.0110.00516.54
7.3.250.0120.00816.50
7.3.240.0070.01016.32
7.3.230.0130.00316.46
7.3.210.0160.00016.44
7.3.200.0090.00819.39
7.3.190.0140.00716.66
7.3.180.0090.00616.40
7.3.170.0060.01316.57
7.3.160.0150.00316.38
7.3.120.0160.00314.67
7.3.110.0090.00614.59
7.3.100.0080.00414.70
7.3.90.0100.00714.80
7.3.80.0060.00314.94
7.3.70.0080.00614.92
7.3.60.0070.00714.73
7.3.50.0040.00914.62
7.3.40.0070.00714.95
7.3.30.0110.00414.59
7.3.20.0030.01016.72
7.3.10.0070.00716.78
7.3.00.0060.00616.39
7.2.330.0070.01016.71
7.2.320.0070.01016.80
7.2.310.0150.00316.75
7.2.300.0060.01016.88
7.2.290.0090.00916.49
7.2.250.0120.00415.31
7.2.240.0030.01614.97
7.2.230.0040.00715.05
7.2.220.0060.00615.27
7.2.210.0060.00615.29
7.2.200.0030.00715.00
7.2.190.0080.00515.13
7.2.180.0060.00615.20
7.2.170.0070.01014.99
7.2.00.0000.01119.14
7.1.330.0040.00815.74
7.1.320.0070.00415.80
7.1.310.0040.01215.98
7.1.300.0060.00615.97
7.1.290.0030.00915.86
7.1.280.0110.00015.44
7.1.270.0030.01015.63
7.1.260.0000.01315.60
7.1.200.0090.00615.53
7.1.100.0030.00918.25
7.1.70.0200.00417.14
7.1.60.0120.00619.32
7.1.50.0060.00616.85
7.1.00.0100.07022.35
7.0.200.0000.01016.86
7.0.140.0000.07721.95
7.0.60.0070.07019.79
7.0.50.0100.08017.87
7.0.40.0100.05720.04
7.0.30.0270.04020.12
7.0.20.0300.04320.07
7.0.10.0030.07020.30
7.0.00.0100.07720.22
5.6.280.0100.07020.85
5.6.210.0130.03720.48
5.6.200.0170.07318.15
5.6.190.0030.05020.57
5.6.180.0100.05720.63
5.6.170.0270.05720.54
5.6.160.0170.07320.47
5.6.150.0070.04718.16
5.6.140.0130.08018.21
5.6.130.0070.05318.18
5.6.120.0030.04321.05
5.6.110.0130.08321.00
5.6.100.0170.07021.00
5.6.90.0100.06720.97
5.6.80.0030.04720.54
5.5.350.0030.03320.49
5.5.340.0170.05317.95
5.5.330.0030.04720.21
5.5.320.0270.05320.38
5.5.310.0130.04320.26
5.5.300.0100.06018.08
5.5.290.0130.07017.98
5.5.280.0030.05320.81
5.5.270.0000.04320.76
5.5.260.0070.08320.64
5.5.250.0170.06720.46
5.5.240.0270.05720.04
5.4.450.0730.04719.28
5.4.440.0570.05319.39
5.4.430.0730.06319.38
5.4.420.0700.00019.52
5.4.410.0700.00019.52
5.4.400.0630.00019.24
5.4.390.0670.00019.11
5.4.380.0500.05018.76
5.4.370.0470.05018.75
5.4.360.0570.04318.84
5.4.350.0530.05018.73
5.4.340.0500.05018.47
5.4.320.0080.03412.51
5.4.310.0060.03812.51
5.4.300.0070.03512.51
5.4.290.0090.04012.50
5.4.280.0100.03512.40
5.4.270.0080.04712.40
5.4.260.0120.03812.40
5.4.250.0110.03912.40
5.4.240.0070.04012.41
5.4.230.0070.04312.39
5.4.220.0110.03612.39
5.4.210.0120.03712.39
5.4.200.0090.03612.39
5.4.190.0080.03512.39
5.4.180.0060.03712.39
5.4.170.0090.03712.40
5.4.160.0070.03712.40
5.4.150.0060.03712.39
5.4.140.0090.03812.08
5.4.130.0060.03612.06
5.4.120.0120.03112.02
5.4.110.0090.03412.02
5.4.100.0060.03612.02
5.4.90.0070.04012.02
5.4.80.0110.04012.02
5.4.70.0070.03712.01
5.4.60.0080.03712.01
5.4.50.0070.04112.01
5.4.40.0130.03012.00
5.4.30.0090.03312.00
5.4.20.0080.03912.00
5.4.10.0090.03412.00
5.4.00.0020.04011.49
5.3.290.0050.04112.80
5.3.280.0070.04212.71
5.3.270.0110.04512.72
5.3.260.0060.03812.72
5.3.250.0050.03712.72
5.3.240.0030.03912.72
5.3.230.0100.03612.71
5.3.220.0060.03712.68
5.3.210.0070.04612.68
5.3.200.0080.03512.68
5.3.190.0070.03812.68
5.3.180.0060.04012.67
5.3.170.0040.03912.67
5.3.160.0070.03712.67
5.3.150.0080.03712.67
5.3.140.0060.04212.66
5.3.130.0060.04012.66
5.3.120.0110.04212.66
5.3.110.0060.04612.66
5.3.100.0070.03512.12
5.3.90.0070.03512.08
5.3.80.0050.03712.08
5.3.70.0060.03512.07
5.3.60.0060.03512.06
5.3.50.0030.03812.00
5.3.40.0050.03612.00
5.3.30.0080.03111.95
5.3.20.0040.03611.73
5.3.10.0030.03711.70
5.3.00.0060.03511.68
5.2.170.0010.0339.18
5.2.160.0040.0349.18
5.2.150.0060.0329.18
5.2.140.0090.0329.18
5.2.130.0080.0279.14
5.2.120.0070.0339.14
5.2.110.0050.0329.15
5.2.100.0050.0299.14
5.2.90.0040.0309.15
5.2.80.0020.0349.14
5.2.70.0090.0269.13
5.2.60.0050.0299.09
5.2.50.0020.0349.05
5.2.40.0080.0329.03
5.2.30.0070.0289.01
5.2.20.0040.0309.01
5.2.10.0080.0258.92
5.2.00.0020.0318.79
5.1.60.0030.0258.07
5.1.50.0030.0258.06
5.1.40.0030.0258.05
5.1.30.0060.0238.39
5.1.20.0040.0268.42
5.1.10.0040.0258.14
5.1.00.0040.0258.14
5.0.50.0020.0226.62
5.0.40.0030.0206.48
5.0.30.0030.0316.29
5.0.20.0030.0206.26
5.0.10.0040.0256.24
5.0.00.0030.0326.23
4.4.90.0030.0154.78
4.4.80.0030.0144.75
4.4.70.0020.0164.75
4.4.60.0040.0144.75
4.4.50.0040.0144.77
4.4.40.0010.0274.71
4.4.30.0040.0184.76
4.4.20.0030.0154.84
4.4.10.0020.0164.85
4.4.00.0020.0294.76
4.3.110.0020.0164.67
4.3.100.0020.0154.67
4.3.90.0040.0134.64
4.3.80.0030.0244.58
4.3.70.0010.0164.63
4.3.60.0020.0144.63
4.3.50.0030.0194.63
4.3.40.0040.0224.54
4.3.30.0030.0153.29
4.3.20.0020.0213.26
4.3.10.0050.0183.22
4.3.00.0000.01315.62

preferences:
37.34 ms | 401 KiB | 5 Q