3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(-1); var_dump(class_exists('Closure')); return; /** * @author Abel de Beer <abel@thispagecannotbefound.com> */ class Slot { /** * @var mixed */ public $listener; /** * @var boolean */ public $once; function __construct($listener, $once) { $this->listener = $listener; $this->once = $once; } } /** * @author Abel de Beer <abel@thispagecannotbefound.com> */ interface OnceSignalInterface { /** * Add a listener to the signal, which will be removed once it has been * executed. * * @param callable $listener A valid callable */ public function addOnce($listener); /** * Execute the signal's listeners. * * @param mixed ... Values to send to listeners */ public function dispatch(); } /** * @author Abel de Beer <abel@thispagecannotbefound.com> */ class OnceSignal implements OnceSignalInterface { /** * @var Slot[] */ protected $slots; function __construct() { $this->slots = array(); } public function addOnce($listener) { $this->slots[] = new Slot($listener, true); } public function dispatch() { foreach ($this->slots as $index => $slot) { if ($slot->once) { unset($this->slots[$index]); } $callback = $slot->listener; call_user_func($callback); } } } function myListener() { echo __FILE__.' : '.__LINE__."\n"; } $signal = new OnceSignal(); $signal->addOnce('myListener'); $signal->dispatch();

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)
8.3.60.0170.00318.31
8.3.50.0130.00821.94
8.3.40.0110.00418.63
8.3.30.0070.01418.98
8.3.20.0070.00720.29
8.3.10.0080.00023.71
8.3.00.0070.00020.70
8.2.180.0160.00316.75
8.2.170.0180.00422.96
8.2.160.0130.00022.27
8.2.150.0060.00924.18
8.2.140.0050.00324.66
8.2.130.0160.00326.16
8.2.120.0040.00422.32
8.2.110.0090.00022.21
8.2.100.0060.00617.66
8.2.90.0000.00719.09
8.2.80.0060.00317.97
8.2.70.0030.00617.50
8.2.60.0050.00317.80
8.2.50.0040.00418.07
8.2.40.0030.00818.09
8.2.30.0000.00718.02
8.2.20.0040.00417.58
8.2.10.0070.00017.66
8.2.00.0030.00617.68
8.1.280.0190.00325.92
8.1.270.0030.01223.82
8.1.260.0180.00026.35
8.1.250.0030.01028.09
8.1.240.0050.00523.88
8.1.230.0070.00319.15
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0030.00717.23
8.1.190.0000.00917.38
8.1.180.0080.00018.10
8.1.170.0050.00318.51
8.1.160.0000.00821.92
8.1.150.0040.00418.48
8.1.140.0000.00717.42
8.1.130.0000.00717.77
8.1.120.0040.00417.34
8.1.110.0030.00417.39
8.1.100.0040.00417.35
8.1.90.0000.00717.26
8.1.80.0070.00017.38
8.1.70.0000.00717.38
8.1.60.0000.00917.47
8.1.50.0050.00317.46
8.1.40.0080.00017.48
8.1.30.0040.00417.58
8.1.20.0030.00517.50
8.1.10.0040.00417.31
8.1.00.0000.00717.34
8.0.300.0040.00418.77
8.0.290.0070.00017.16
8.0.280.0070.00018.28
8.0.270.0030.00317.20
8.0.260.0030.00316.66
8.0.250.0060.00016.88
8.0.240.0080.00016.80
8.0.230.0050.00216.85
8.0.220.0070.00016.88
8.0.210.0000.00816.68
8.0.200.0000.00716.96
8.0.190.0030.00516.77
8.0.180.0000.00816.73
8.0.170.0030.00316.88
8.0.160.0000.00716.65
8.0.150.0000.00716.79
8.0.140.0040.00416.82
8.0.130.0060.00013.20
8.0.120.0000.00816.82
8.0.110.0040.00416.83
8.0.100.0000.00716.77
8.0.90.0030.00616.62
8.0.80.0070.01416.74
8.0.70.0000.00716.87
8.0.60.0070.00016.64
8.0.50.0040.00416.88
8.0.30.0080.01417.01
8.0.20.0110.00717.40
8.0.10.0030.00317.00
8.0.00.0080.01116.59
7.4.330.0060.00015.00
7.4.320.0030.00316.34
7.4.300.0060.00016.33
7.4.290.0070.00016.52
7.4.280.0000.00716.34
7.4.270.0000.00716.39
7.4.260.0030.00316.43
7.4.250.0000.00716.35
7.4.240.0030.00316.45
7.4.230.0030.00316.61
7.4.220.0110.00716.45
7.4.210.0030.01316.49
7.4.200.0070.00016.63
7.4.190.0040.00416.39
7.4.160.0080.00816.63
7.4.150.0070.01117.40
7.4.140.0110.00817.86
7.4.130.0150.00516.42
7.4.120.0120.00916.38
7.4.110.0040.01216.69
7.4.100.0130.01216.55
7.4.90.0100.00716.41
7.4.80.0070.01416.47
7.4.70.0130.00316.14
7.4.60.0100.00616.52
7.4.50.0060.00316.48
7.4.40.0030.01322.77
7.4.30.0130.00316.37
7.4.00.0060.00314.56
7.3.330.0050.00013.13
7.3.320.0000.00613.27
7.3.310.0070.00016.20
7.3.300.0060.00316.17
7.3.290.0120.00916.26
7.3.280.0110.00816.20
7.3.270.0150.00617.40
7.3.260.0060.01116.41
7.3.250.0080.00916.16
7.3.240.0070.01016.18
7.3.230.0030.01416.40
7.3.210.0090.00916.20
7.3.200.0140.00619.39
7.3.190.0180.00416.07
7.3.180.0080.00816.30
7.3.170.0090.00616.39
7.3.160.0130.00316.52
7.3.120.0060.00914.61
7.2.330.0030.01516.52
7.2.320.0140.00416.60
7.2.310.0070.01116.17
7.2.300.0110.00516.55
7.2.290.0070.01016.57
7.2.00.0030.01219.18
7.1.100.0060.00617.95
7.1.70.0060.00316.79
7.1.60.0070.01719.22
7.1.50.0070.01316.80
7.1.00.0000.08022.30
7.0.200.0000.01016.32
7.0.140.0000.07721.98
7.0.60.0070.04320.02
7.0.50.0030.05017.89
7.0.40.0070.04020.40
7.0.30.0370.07320.30
7.0.20.0300.07320.07
7.0.10.0270.05720.25
7.0.00.0100.08720.33
5.6.280.0030.07320.80
5.6.210.0130.06020.70
5.6.200.0030.09018.14
5.6.190.0070.05720.64
5.6.180.0300.04320.33
5.6.170.0330.03720.51
5.6.160.0070.07320.66
5.6.150.0100.07718.13
5.6.140.0130.07318.18
5.6.130.0100.06318.34
5.6.120.0030.09020.97
5.6.110.0100.07021.13
5.6.100.0130.06321.02
5.6.90.0070.06321.00
5.6.80.0030.08020.42
5.6.70.4030.03720.38
5.5.350.0000.04720.45
5.5.340.0000.04017.96
5.5.330.0170.04320.57
5.5.320.0070.08020.32
5.5.310.0200.04720.24
5.5.300.0030.08317.93
5.5.290.0100.06017.98
5.5.280.0070.08320.75
5.5.270.0070.04320.78
5.5.260.0070.07020.88
5.5.250.0070.07320.56
5.5.240.0030.07720.16
5.4.450.1430.04019.28
5.4.440.0500.05019.64
5.4.430.0900.04319.52
5.4.420.0830.04019.27
5.4.410.0170.04319.20
5.4.400.0430.05718.63
5.4.390.0600.06018.51
5.4.380.0200.04718.79
5.4.370.0070.05718.50
5.4.360.0170.05318.73
5.4.350.0130.06018.46
5.4.340.0200.05718.73
5.4.320.0070.03512.52
5.4.310.0080.03612.51
5.4.300.0070.03512.52
5.4.290.0040.04612.51
5.4.280.0140.05712.38
5.4.270.0120.04612.38
5.4.260.0140.07112.38
5.4.250.0140.04712.38
5.4.240.0150.04612.39
5.4.230.0140.04812.38
5.4.220.0090.05412.38
5.4.210.0090.05012.37
5.4.200.0100.05112.38
5.4.190.0150.04512.38
5.4.180.0070.05212.38
5.4.170.0140.04712.38
5.4.160.0140.04512.38
5.4.150.0050.05312.37
5.4.140.0090.05212.05
5.4.130.0100.04712.04
5.4.120.0150.04512.00
5.4.110.0100.06612.00
5.4.100.0200.06412.00
5.4.90.0140.07112.00
5.4.80.0110.05511.99
5.4.70.0110.05811.99
5.4.60.0120.04812.00
5.4.50.0100.06211.99
5.4.40.0100.06911.98
5.4.30.0150.05211.98
5.4.20.0110.07111.98
5.4.10.0110.05411.98
5.4.00.0070.05811.46
5.3.290.0100.05012.80
5.3.280.0210.06512.71
5.3.270.0160.07212.73
5.3.260.0150.06012.72
5.3.250.0230.07312.72
5.3.240.0130.06312.72
5.3.230.0230.07412.71
5.3.220.0280.10512.68
5.3.210.0120.06212.68
5.3.200.0150.05612.68
5.3.190.0130.06112.68
5.3.180.0190.07012.68
5.3.170.0110.05612.67
5.3.160.0260.09712.67
5.3.150.0070.04212.67
5.3.140.0080.04212.66
5.3.130.0060.04312.66
5.3.120.0100.04212.66
5.3.110.0050.04512.66
5.3.100.0180.11012.12
5.3.90.0060.06312.09
5.3.80.0070.04112.08
5.3.70.0050.04212.08
5.3.60.0060.04712.07
5.3.50.0050.04212.01
5.3.40.0110.05012.01
5.3.30.0080.04511.97
5.3.20.0080.03811.76
5.3.10.0060.03811.72
5.3.00.0160.05711.71
5.2.170.0180.0529.21
5.2.160.0100.0519.21
5.2.150.0080.0519.21
5.2.140.0050.0369.21
5.2.130.0080.0369.17
5.2.120.0160.0519.17
5.2.110.0090.0299.17
5.2.100.0060.0329.18
5.2.90.0050.0339.17
5.2.80.0020.0379.17
5.2.70.0060.0349.16
5.2.60.0070.0319.12
5.2.50.0070.0389.09
5.2.40.0040.0449.07
5.2.30.0090.0359.04
5.2.20.0040.0349.03
5.2.10.0040.0328.94
5.2.00.0050.0328.81
5.1.60.0060.0288.09
5.1.50.0060.0328.09
5.1.40.0030.0298.08
5.1.30.0060.0288.41
5.1.20.0050.0308.44
5.1.10.0050.0278.17
5.1.00.0050.0288.17
5.0.50.0070.0286.64
5.0.40.0060.0306.50
5.0.30.0040.0346.31
5.0.20.0060.0206.29
5.0.10.0070.0206.27
5.0.00.0040.0336.25
4.4.90.0070.0284.78
4.4.80.0030.0174.75
4.4.70.0020.0194.75
4.4.60.0020.0204.76
4.4.50.0050.0144.77
4.4.40.0030.0274.71
4.4.30.0040.0184.76
4.4.20.0020.0194.85
4.4.10.0040.0204.85
4.4.00.0050.0384.76
4.3.110.0090.0394.67
4.3.100.0040.0254.67
4.3.90.0050.0224.64
4.3.80.0070.0314.58
4.3.70.0050.0214.63
4.3.60.0090.0304.63
4.3.50.0030.0294.63
4.3.40.0110.0584.54
4.3.30.0060.0233.29
4.3.20.0040.0213.27
4.3.10.0020.0313.23
4.3.00.0130.00713.14

preferences:
30.9 ms | 401 KiB | 5 Q