3v4l.org

run code in 300+ PHP versions simultaneously
<?php class BaseObserver { protected $events = array(); public function register($callable, $event){ if (!isset($this->events[$event])) { $this->events[$event] = array(); } $this->events[$event][] = $callable; } public function notify($event, $params = array()) { if (isset($this->events[$event])) { foreach ($this->events[$event] AS $callable){ call_user_func_array($callable, $params); } } } } function print_meta($p1, $p2) { echo $p1 . ' ' . $p2; } function multiply_meta($p1, $p2) { echo $p1 * $p2; } function add_meta($p1, $p2) { echo $p1 + $p2; } $observer = new BaseObserver(); $observer->register('print_meta', 'event1'); $observer->register('multiply_meta', 'event1'); $observer->register('print_meta', 'event2'); $observer->register('add_meta', 'event2'); $observer->register('multiply_meta', 'event3'); $observer->register('add_meta', 'event3'); $observer->notify('event1', array(1, 2)); $observer->notify('event2', array(3, 4)); $observer->notify('event3', array(5, 6));

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)
8.3.60.0070.01416.25
8.3.50.0230.00522.97
8.3.40.0120.00318.90
8.3.30.0110.00319.22
8.3.20.0000.00720.31
8.3.10.0040.00423.63
8.3.00.0080.00017.59
8.2.180.0110.00416.88
8.2.170.0070.00722.96
8.2.160.0070.00720.38
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0170.00026.16
8.2.120.0070.00020.89
8.2.110.0030.00622.25
8.2.100.0040.00717.72
8.2.90.0000.00819.30
8.2.80.0000.00817.97
8.2.70.0000.00817.75
8.2.60.0050.00317.80
8.2.50.0050.00318.07
8.2.40.0040.00418.22
8.2.30.0040.00418.05
8.2.20.0040.00417.67
8.2.10.0030.00518.14
8.2.00.0040.00417.68
8.1.280.0150.00025.92
8.1.270.0040.00422.20
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0040.00423.84
8.1.230.0070.00418.98
8.1.220.0000.00917.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0000.00817.25
8.1.180.0060.00318.10
8.1.170.0030.00518.72
8.1.160.0000.00722.07
8.1.150.0040.00418.95
8.1.140.0050.00317.38
8.1.130.0050.00217.84
8.1.120.0070.00017.50
8.1.110.0000.00917.50
8.1.100.0000.00717.49
8.1.90.0070.00017.47
8.1.80.0040.00417.54
8.1.70.0000.00717.37
8.1.60.0000.00817.49
8.1.50.0000.00817.58
8.1.40.0040.00417.57
8.1.30.0080.00017.64
8.1.20.0000.01017.55
8.1.10.0040.00417.58
8.1.00.0030.00517.41
8.0.300.0000.00818.77
8.0.290.0030.00616.75
8.0.280.0000.00718.46
8.0.270.0080.00017.23
8.0.260.0000.00717.16
8.0.250.0030.00316.96
8.0.240.0060.00317.01
8.0.230.0040.00416.93
8.0.220.0030.00316.92
8.0.210.0030.00316.88
8.0.200.0030.00316.93
8.0.190.0000.00716.94
8.0.180.0000.00716.85
8.0.170.0000.00816.95
8.0.160.0030.00616.93
8.0.150.0070.00016.95
8.0.140.0070.00016.89
8.0.130.0030.00313.31
8.0.120.0040.00416.77
8.0.110.0060.00316.75
8.0.100.0040.00416.90
8.0.90.0040.00417.00
8.0.80.0030.01216.84
8.0.70.0000.00716.76
8.0.60.0040.00416.76
8.0.50.0000.00716.84
8.0.30.0120.01217.20
8.0.20.0150.00517.40
8.0.10.0040.00416.85
8.0.00.0110.00716.95
7.4.330.0000.00715.00
7.4.320.0060.00016.63
7.4.300.0030.00316.61
7.4.290.0030.00316.55
7.4.280.0050.00316.57
7.4.270.0040.00416.51
7.4.260.0040.00416.60
7.4.250.0040.00416.55
7.4.240.0040.00416.59
7.4.230.0000.00816.40
7.4.220.0070.01116.64
7.4.210.0080.00816.58
7.4.200.0000.00716.62
7.4.160.0160.00816.53
7.4.150.0090.00917.40
7.4.140.0080.01117.86
7.4.130.0160.00616.61
7.4.120.0090.00816.55
7.4.110.0100.01316.46
7.4.100.0120.01216.59
7.4.90.0140.00516.61
7.4.80.0030.01519.39
7.4.70.0130.00716.61
7.4.60.0040.01516.50
7.4.50.0040.00016.16
7.4.40.0120.00316.58
7.4.30.0030.01316.59
7.4.00.0030.01414.97
7.3.330.0060.00013.38
7.3.320.0000.00613.39
7.3.310.0070.00016.17
7.3.300.0030.00316.32
7.3.290.0030.01216.35
7.3.280.0100.00816.36
7.3.270.0030.01417.40
7.3.260.0130.00416.38
7.3.240.0170.00016.44
7.3.230.0040.01216.56
7.3.210.0060.02216.57
7.3.200.0090.00919.39
7.3.190.0150.00916.55
7.3.180.0090.00916.25
7.3.170.0090.00916.36
7.3.160.0100.01316.57
7.3.120.0070.01014.76
7.3.110.0090.00915.08
7.3.100.0030.01614.79
7.3.90.0150.00014.93
7.3.80.0030.01314.89
7.3.70.0040.01414.99
7.3.60.0100.00314.68
7.3.50.0120.00315.05
7.3.40.0040.01115.05
7.3.30.0040.01214.84
7.3.20.0030.01216.38
7.3.10.0070.01016.66
7.3.00.0110.00716.67
7.2.330.0090.00916.83
7.2.320.0150.00916.72
7.2.310.0060.01116.79
7.2.300.0080.00916.66
7.2.290.0000.01616.52
7.2.250.0100.01015.07
7.2.240.0130.00315.25
7.2.230.0100.01015.23
7.2.220.0060.00915.14
7.2.210.0070.00715.34
7.2.200.0130.00314.83
7.2.190.0040.01415.09
7.2.180.0040.00814.88
7.2.170.0090.00614.82
7.2.60.0070.00717.00
7.2.00.0030.01019.18
7.1.330.0100.00716.01
7.1.320.0030.01215.79
7.1.310.0060.00615.91
7.1.300.0130.00315.55
7.1.290.0000.01215.92
7.1.280.0000.01315.58
7.1.270.0030.01415.91
7.1.260.0040.00715.80
7.1.200.0090.00015.49
7.1.100.0030.01018.43
7.1.70.0030.00317.09
7.1.60.0130.01319.40
7.1.50.0140.01017.07
7.1.00.0030.07322.31
7.0.200.0040.00416.79
7.0.140.0070.07321.98
7.0.60.0030.08719.96
7.0.50.0070.08317.90
7.0.40.0070.06720.11
7.0.30.0330.06320.21
7.0.20.0200.05320.08
7.0.10.0130.05020.20
7.0.00.0030.08720.16
5.6.280.0070.07020.81
5.6.210.0100.06320.75
5.6.200.0170.04318.29
5.6.190.0030.04720.46
5.6.180.0070.05020.67
5.6.170.0230.05020.44
5.6.160.0170.07720.52
5.6.150.0000.04718.29
5.6.140.0100.08018.28
5.6.130.0200.06318.15
5.6.120.0030.08721.00
5.6.110.0100.07721.14
5.6.100.0170.07321.14
5.6.90.0000.06320.99
5.6.80.0070.06020.42
5.5.350.0270.07020.35
5.5.340.0130.07717.97
5.5.330.0100.08320.28
5.5.320.0170.06320.32
5.5.310.0270.07320.36
5.5.300.0130.07317.97
5.5.290.0030.08317.97
5.5.280.0100.08020.81
5.5.270.0170.08020.66
5.5.260.0100.07720.77
5.5.250.0070.09320.59
5.5.240.0000.03320.04
5.4.450.0700.07319.38
5.4.440.0830.05019.61
5.4.430.0770.05719.57
5.4.420.0730.05719.22
5.4.410.0700.06019.30
5.4.400.0300.05318.91
5.4.390.0270.07718.48
5.4.380.0070.05318.55
5.4.370.0070.04018.50
5.4.360.0100.03718.52
5.4.350.0060.03712.03
5.4.340.0030.04912.02
5.4.320.0040.03912.52
5.4.310.0060.03912.52
5.4.300.0120.03212.52
5.4.290.0060.03912.51
5.4.280.0080.03312.41
5.4.270.0070.03412.41
5.4.260.0010.04212.40
5.4.250.0080.03612.41
5.4.240.0090.04712.41
5.4.230.0060.04312.40
5.4.220.0070.03612.40
5.4.210.0080.03412.40
5.4.200.0070.03812.40
5.4.190.0070.04312.39
5.4.180.0100.04712.39
5.4.170.0110.03212.40
5.4.160.0080.03612.40
5.4.150.0110.03212.39
5.4.140.0050.03612.07
5.4.130.0070.03412.07
5.4.120.0130.03812.02
5.4.110.0090.03912.02
5.4.100.0070.04112.02
5.4.90.0040.03912.02
5.4.80.0050.03812.02
5.4.70.0070.04012.02
5.4.60.0070.04612.02
5.4.50.0070.04012.02
5.4.40.0050.03612.00
5.4.30.0050.03712.00
5.4.20.0040.03812.00
5.4.10.0040.03712.00
5.4.00.0060.03511.48
5.3.290.0030.04412.80
5.3.280.0050.03812.71
5.3.270.0040.04212.73
5.3.260.0060.04112.72
5.3.250.0070.05412.72
5.3.240.0110.04912.72
5.3.230.0070.05012.71
5.3.220.0160.04312.68
5.3.210.0080.04212.68
5.3.200.0090.04112.68
5.3.190.0120.04612.68
5.3.180.0090.05012.67
5.3.170.0040.04412.67
5.3.160.0170.03812.68
5.3.150.0120.03512.67
5.3.140.0020.04112.66
5.3.130.0050.04012.65
5.3.120.0070.03712.66
5.3.110.0100.03512.66
5.3.100.0050.03912.13
5.3.90.0050.03812.11
5.3.80.0060.03912.11
5.3.70.0120.04812.11
5.3.60.0100.05012.09
5.3.50.0090.05212.04
5.3.40.0100.05312.04
5.3.30.0110.04912.00
5.3.20.0040.04311.78
5.3.10.0070.04111.74
5.3.00.0080.04011.73
5.2.170.0050.0339.24
5.2.160.0050.0299.23
5.2.150.0060.0299.23
5.2.140.0020.0349.23
5.2.130.0060.0279.20
5.2.120.0050.0329.20
5.2.110.0030.0319.20
5.2.100.0020.0329.19
5.2.90.0050.0309.19
5.2.80.0040.0329.19
5.2.70.0070.0299.18
5.2.60.0050.0309.15
5.2.50.0070.0289.12
5.2.40.0050.0309.09
5.2.30.0030.0329.06
5.2.20.0050.0299.05
5.2.10.0050.0288.96
5.2.00.0030.0308.82
5.1.60.0040.0248.11
5.1.50.0040.0258.10
5.1.40.0050.0248.09
5.1.30.0050.0268.44
5.1.20.0070.0268.46
5.1.10.0050.0268.18
5.1.00.0070.0268.18
5.0.50.0040.0236.66
5.0.40.0020.0246.52
5.0.30.0030.0356.33
5.0.20.0050.0196.30
5.0.10.0030.0216.27
5.0.00.0040.0366.27
4.4.90.0040.0204.78
4.4.80.0050.0134.76
4.4.70.0030.0164.75
4.4.60.0030.0154.76
4.4.50.0030.0154.77
4.4.40.0020.0264.71
4.4.30.0040.0144.76
4.4.20.0040.0144.85
4.4.10.0030.0154.85
4.4.00.0030.0244.76
4.3.110.0040.0154.67
4.3.100.0030.0144.66
4.3.90.0020.0164.63
4.3.80.0010.0294.58
4.3.70.0030.0174.63
4.3.60.0030.0174.63
4.3.50.0030.0164.63
4.3.40.0030.0324.54
4.3.30.0000.0233.30
4.3.20.0020.0193.28
4.3.10.0020.0163.23
4.3.00.0070.0276.95

preferences:
38.45 ms | 401 KiB | 5 Q