3v4l.org

run code in 300+ PHP versions simultaneously
<?php class MenuElement { public $id; public $children = array(); public function __construct($id) { $this->id = $id; } public function addChild(MenuElement $menuElement) { array_push($this->children, $menuElement); } } $menuElement1 = new MenuElement(1); $menuElement11 = new MenuElement(11); $menuElement12 = new MenuElement(12); $menuElement121 = new MenuElement(121); $menuElement122 = new MenuElement(122); $menuElement123 = new MenuElement(123); $menuElement1211 = new MenuElement(1211); $menuElement121->addChild($menuElement1211); $menuElement12->addChild($menuElement121); $menuElement12->addChild($menuElement122); $menuElement12->addChild($menuElement123); $menuElement1->addChild($menuElement11); $menuElement1->addChild($menuElement12); function foo(MenuElement $elt, $level = 0) { if (0 == $level) echo '<ul>'.PHP_EOL; echo str_repeat(' ', $level+1).'<li>'.$elt->id; if (!count($elt->children)) { echo '</li>'.PHP_EOL; return; } echo PHP_EOL.str_repeat(' ', $level+2).'<ul>'.PHP_EOL; foreach($elt->children as $child) foo($child, $level+2); echo str_repeat(' ', $level+2).'</ul>'.PHP_EOL; echo str_repeat(' ', $level+1).'</li>'.PHP_EOL; if (0 == $level) echo '</ul>'.PHP_EOL; } foo($menuElement1);

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)
8.3.60.0060.00918.56
8.3.50.0150.00522.08
8.3.40.0070.01418.92
8.3.30.0120.00319.16
8.3.20.0070.00020.19
8.3.10.0060.00320.71
8.3.00.0080.00019.38
8.2.180.0150.00416.50
8.2.170.0140.00722.96
8.2.160.0100.01020.35
8.2.150.0060.00324.18
8.2.140.0040.01124.66
8.2.130.0100.00726.16
8.2.120.0120.00322.23
8.2.110.0060.00320.47
8.2.100.0070.00418.22
8.2.90.0030.00519.21
8.2.80.0060.00317.97
8.2.70.0060.00317.38
8.2.60.0040.00418.04
8.2.50.0030.00618.07
8.2.40.0040.00418.20
8.2.30.0000.00819.19
8.2.20.0000.00717.75
8.2.10.0000.00718.18
8.2.00.0060.00317.51
8.1.280.0110.00725.92
8.1.270.0000.00823.88
8.1.260.0070.00726.35
8.1.250.0120.00328.09
8.1.240.0030.00623.81
8.1.230.0110.00019.16
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0000.01017.35
8.1.190.0040.00417.11
8.1.180.0000.00818.10
8.1.170.0100.00318.24
8.1.160.0040.00422.07
8.1.150.0050.00318.86
8.1.140.0030.00517.39
8.1.130.0000.00717.88
8.1.120.0050.00317.47
8.1.110.0000.00717.50
8.1.100.0070.00017.46
8.1.90.0030.00317.50
8.1.80.0030.00317.38
8.1.70.0000.00717.36
8.1.60.0000.00817.61
8.1.50.0040.00417.51
8.1.40.0050.00217.39
8.1.30.0090.00017.61
8.1.20.0000.00817.61
8.1.10.0030.00617.48
8.1.00.0040.00417.43
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0040.00418.32
8.0.270.0040.00417.32
8.0.260.0030.00318.54
8.0.250.0030.00317.05
8.0.240.0000.00816.95
8.0.230.0040.00416.91
8.0.220.0070.00016.99
8.0.210.0080.00016.96
8.0.200.0000.00817.02
8.0.190.0060.00317.00
8.0.180.0000.00716.99
8.0.170.0040.00417.01
8.0.160.0070.00017.05
8.0.150.0000.00816.90
8.0.140.0030.00616.96
8.0.130.0030.00313.39
8.0.120.0030.00616.84
8.0.110.0020.00517.03
8.0.100.0040.00416.80
8.0.90.0040.00417.02
8.0.80.0120.00917.03
8.0.70.0000.00717.01
8.0.60.0000.00817.02
8.0.50.0020.00517.03
8.0.30.0110.00816.97
8.0.20.0100.01217.40
8.0.10.0050.00317.04
8.0.00.0070.01116.86
7.4.330.0050.00015.00
7.4.320.0000.00716.45
7.4.300.0040.00416.57
7.4.290.0040.00416.64
7.4.280.0000.00816.43
7.4.270.0070.00016.56
7.4.260.0030.00316.43
7.4.250.0000.00716.63
7.4.240.0040.00316.64
7.4.230.0070.00016.69
7.4.220.0080.01216.52
7.4.210.0100.00316.73
7.4.200.0040.00416.42
7.4.160.0180.00016.60
7.4.150.0160.01717.40
7.4.140.0110.00917.86
7.4.130.0070.01016.48
7.4.120.0090.00816.58
7.4.110.0030.01516.50
7.4.100.0080.01216.49
7.4.90.0100.00716.53
7.4.80.0100.00719.37
7.4.70.0100.00616.55
7.4.60.0100.00716.49
7.4.50.0030.00516.62
7.4.40.0150.00916.46
7.4.30.0100.01316.42
7.4.00.0000.01415.02
7.3.330.0060.00013.38
7.3.320.0000.00513.14
7.3.310.0030.00516.34
7.3.300.0000.00716.20
7.3.290.0090.00616.35
7.3.280.0080.00716.32
7.3.270.0120.00617.40
7.3.260.0050.01116.39
7.3.250.0080.01316.56
7.3.240.0160.00016.43
7.3.230.0160.00016.40
7.3.210.0150.00616.58
7.3.200.0150.00419.39
7.3.190.0120.00616.73
7.3.180.0090.00916.32
7.3.170.0080.01316.46
7.3.160.0110.01116.38
7.3.10.0060.00816.58
7.3.00.0070.00816.65
7.2.330.0190.01216.74
7.2.320.0170.00616.89
7.2.310.0090.00916.64
7.2.300.0130.00316.49
7.2.290.0160.00616.84
7.2.130.0090.00616.78
7.2.120.0060.00916.75
7.2.110.0050.00917.00
7.2.100.0060.00916.88
7.2.90.0020.01216.91
7.2.80.0020.01217.09
7.2.70.0040.00816.91
7.2.60.0100.00716.88
7.2.50.0070.00717.02
7.2.40.0070.00616.95
7.2.30.0000.01517.09
7.2.20.0030.01217.00
7.2.10.0040.00917.09
7.2.00.0060.00917.83
7.1.250.0070.01015.88
7.1.100.0060.00618.23
7.1.70.0070.00017.16
7.1.60.0060.01019.32
7.1.50.0100.01316.63
7.1.00.0130.06722.51
7.0.200.0080.00016.64
7.0.140.0000.07722.21
7.0.60.0130.07020.02
7.0.50.0070.04017.92
7.0.40.0000.04719.96
7.0.30.0230.07020.25
7.0.20.0270.05320.33
7.0.10.0170.04320.14
7.0.00.0070.08320.11
5.6.280.0030.07321.10
5.6.210.0100.08320.48
5.6.200.0070.04318.29
5.6.190.0170.07320.64
5.6.180.0330.07320.39
5.6.170.0230.04020.55
5.6.160.0030.08320.54
5.6.150.0100.04318.14
5.6.140.0030.05718.15
5.6.130.0030.09018.14
5.6.120.0100.08321.01
5.6.110.0170.07721.00
5.6.100.0130.07721.02
5.6.90.0130.08020.99
5.6.80.0130.06720.52
5.6.70.4330.04320.40
5.5.350.0230.06720.35
5.5.340.0100.05717.93
5.5.330.0000.05020.35
5.5.320.0430.06720.36
5.5.310.0300.07720.37
5.5.300.0030.07017.99
5.5.290.0030.08317.96
5.5.280.0130.04720.89
5.5.270.0100.07720.88
5.5.260.0030.04320.85
5.5.250.0100.08020.56
5.5.240.0100.06720.13
5.4.450.0200.04019.50
5.4.440.0900.05319.46
5.4.430.0970.05319.69
5.4.420.0670.00019.53
5.4.410.0770.00019.42
5.4.400.0630.00019.08
5.4.390.0670.00019.03
5.4.380.0300.05718.76
5.4.370.0300.05718.71
5.4.360.0230.06718.79
5.4.350.0370.04718.57
5.4.340.0300.05318.48
5.4.320.0070.03512.51
5.4.310.0090.04912.51
5.4.300.0070.03412.52
5.4.290.0040.03912.51
5.4.280.0060.03912.41
5.4.270.0060.03612.41
5.4.260.0030.04012.41
5.4.250.0060.03712.41
5.4.240.0150.02712.41
5.4.230.0060.04512.41
5.4.220.0050.03712.40
5.4.210.0060.03412.41
5.4.200.0070.03512.40
5.4.190.0050.03512.40
5.4.180.0030.03812.40
5.4.170.0080.03412.41
5.4.160.0040.03612.40
5.4.150.0010.04112.40
5.4.140.0070.03512.09
5.4.130.0060.03512.07
5.4.120.0090.03112.03
5.4.110.0010.04512.03
5.4.100.0060.03612.03
5.4.90.0060.03612.02
5.4.80.0050.03712.02
5.4.70.0070.03712.02
5.4.60.0080.03812.02
5.4.50.0080.03612.02
5.4.40.0070.04012.01
5.4.30.0090.03512.00
5.4.20.0050.04012.00
5.4.10.0050.03712.00
5.4.00.0030.03811.50
5.3.290.0050.04012.80
5.3.280.0070.03712.71
5.3.270.0040.04012.72
5.3.260.0090.03612.72
5.3.250.0070.03612.71
5.3.240.0080.03512.72
5.3.230.0090.03412.71
5.3.220.0010.04112.68
5.3.210.0030.04012.68
5.3.200.0100.03412.68
5.3.190.0080.03512.68
5.3.180.0070.03512.67
5.3.170.0060.03712.67
5.3.160.0060.03612.67
5.3.150.0050.03812.67
5.3.140.0060.03712.66
5.3.130.0040.04012.66
5.3.120.0090.03612.66
5.3.110.0040.04012.66
5.3.100.0060.03712.14
5.3.90.0050.03812.13
5.3.80.0040.03712.11
5.3.70.0080.03412.11
5.3.60.0050.03912.10
5.3.50.0080.03312.04
5.3.40.0050.03712.04
5.3.30.0070.03312.00
5.3.20.0050.03611.79
5.3.10.0040.03611.75
5.3.00.0050.03811.74
5.2.170.0070.0299.25
5.2.160.0030.0319.25
5.2.150.0060.0299.25
5.2.140.0050.0309.25
5.2.130.0050.0289.20
5.2.120.0050.0319.20
5.2.110.0080.0289.21
5.2.100.0090.0269.21
5.2.90.0060.0299.21
5.2.80.0030.0329.20
5.2.70.0070.0299.20
5.2.60.0050.0319.16
5.2.50.0030.0329.12
5.2.40.0020.0329.11
5.2.30.0070.0309.08
5.2.20.0030.0319.07
5.2.10.0040.0308.97
5.2.00.0050.0298.84
5.1.60.0030.0248.12
5.1.50.0030.0268.12
5.1.40.0050.0238.10
5.1.30.0040.0268.45
5.1.20.0060.0248.47
5.1.10.0030.0278.20
5.1.00.0050.0258.20
5.0.50.0060.0186.69
5.0.40.0020.0216.55
5.0.30.0040.0316.36
5.0.20.0030.0196.33
5.0.10.0040.0196.31
5.0.00.0040.0306.30
4.4.90.0030.0144.78
4.4.80.0030.0154.75
4.4.70.0030.0144.75
4.4.60.0020.0164.75
4.4.50.0030.0154.77
4.4.40.0020.0304.70
4.4.30.0030.0214.76
4.4.20.0040.0204.84
4.4.10.0010.0174.85
4.4.00.0040.0234.76
4.3.110.0030.0154.67
4.3.100.0020.0154.66
4.3.90.0010.0154.64
4.3.80.0010.0254.58
4.3.70.0020.0144.63
4.3.60.0030.0134.63
4.3.50.0020.0164.63
4.3.40.0030.0234.54
4.3.30.0050.0133.30
4.3.20.0020.0163.28
4.3.10.0030.0173.24
4.3.00.0030.0176.34

preferences:
46.96 ms | 401 KiB | 5 Q