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 . ' ' . $p2 . "\r\n"; } function multiply_meta($p1, $p2) { echo $p1 * $p2 . "\r\n"; } function add_meta($p1, $p2) { echo $p1 + $p2 . "\r\n"; } $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)
8.3.60.0040.01416.88
8.3.50.0090.00722.90
8.3.40.0120.00319.09
8.3.30.0030.01119.25
8.3.20.0070.00020.34
8.3.10.0000.00823.62
8.3.00.0060.00317.75
8.2.180.0040.01116.50
8.2.170.0100.00322.96
8.2.160.0130.00720.37
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00420.82
8.2.110.0030.00622.17
8.2.100.0040.00817.72
8.2.90.0060.00319.05
8.2.80.0080.00017.97
8.2.70.0030.00517.63
8.2.60.0040.00417.93
8.2.50.0080.00018.07
8.2.40.0040.00418.22
8.2.30.0080.00018.04
8.2.20.0050.00217.73
8.2.10.0060.00318.06
8.2.00.0000.00717.77
8.1.280.0110.00425.92
8.1.270.0060.00322.14
8.1.260.0050.00226.35
8.1.250.0050.00228.09
8.1.240.0030.00623.96
8.1.230.0110.00019.16
8.1.220.0000.00817.76
8.1.210.0040.00418.77
8.1.200.0030.00717.23
8.1.190.0000.00817.23
8.1.180.0090.00018.10
8.1.170.0030.00518.64
8.1.160.0000.00821.94
8.1.150.0000.00818.94
8.1.140.0040.00417.46
8.1.130.0000.00817.89
8.1.120.0030.00517.41
8.1.110.0030.00617.39
8.1.100.0040.00417.53
8.1.90.0000.00717.38
8.1.80.0000.00717.35
8.1.70.0070.00017.45
8.1.60.0090.00017.46
8.1.50.0040.00417.37
8.1.40.0050.00317.43
8.1.30.0040.00417.71
8.1.20.0030.00717.60
8.1.10.0000.00817.63
8.1.00.0080.00017.43
8.0.300.0060.00318.77
8.0.290.0070.00016.58
8.0.280.0000.00718.34
8.0.270.0000.00717.34
8.0.260.0000.00617.20
8.0.250.0030.00316.99
8.0.240.0000.00816.99
8.0.230.0040.00416.81
8.0.220.0030.00316.94
8.0.210.0000.00716.87
8.0.200.0030.00316.82
8.0.190.0030.00516.96
8.0.180.0000.00716.82
8.0.170.0070.00016.95
8.0.160.0050.00316.82
8.0.150.0040.00416.76
8.0.140.0000.00816.89
8.0.130.0030.00613.30
8.0.120.0040.00416.84
8.0.110.0050.00316.82
8.0.100.0070.00016.73
8.0.90.0050.00216.89
8.0.80.0060.01516.92
8.0.70.0050.00216.76
8.0.60.0070.00016.77
8.0.50.0040.00416.93
8.0.30.0160.01017.04
8.0.20.0080.01417.40
8.0.10.0070.00016.89
8.0.00.0140.00816.77
7.4.330.0000.00615.00
7.4.320.0030.00316.55
7.4.300.0030.00316.62
7.4.290.0000.00816.62
7.4.280.0040.00416.61
7.4.270.0070.00016.52
7.4.260.0030.00316.63
7.4.250.0040.00416.48
7.4.240.0000.00716.56
7.4.230.0030.00616.43
7.4.220.0070.01016.56
7.4.210.0090.00616.57
7.4.200.0080.00016.57
7.4.160.0150.01116.72
7.4.150.0130.00717.40
7.4.140.0110.00717.86
7.4.130.0190.00216.57
7.4.120.0110.00616.37
7.4.110.0060.01716.32
7.4.100.0070.01016.36
7.4.90.0090.00916.52
7.4.80.0060.01219.39
7.4.70.0130.00416.43
7.4.60.0090.00916.56
7.4.50.0040.00016.38
7.4.40.0070.01016.56
7.4.30.0090.00916.46
7.4.00.0050.01215.07
7.3.330.0030.00313.38
7.3.320.0050.00013.30
7.3.310.0030.00316.42
7.3.300.0030.00316.20
7.3.290.0070.00716.38
7.3.280.0100.00816.30
7.3.270.0130.00317.40
7.3.260.0150.00916.71
7.3.250.0080.01316.45
7.3.240.0060.00916.36
7.3.230.0080.00816.48
7.3.210.0130.01016.66
7.3.200.0100.01519.39
7.3.190.0120.00616.46
7.3.180.0000.01716.56
7.3.170.0070.01016.29
7.3.160.0120.00916.64
7.3.120.0040.01514.59
7.3.110.0000.01714.86
7.3.100.0090.00914.78
7.3.90.0100.00314.95
7.3.80.0070.00414.91
7.3.70.0130.00314.88
7.3.60.0040.00414.86
7.3.50.0070.00714.88
7.3.40.0000.01714.76
7.3.30.0090.00014.95
7.3.20.0080.00616.72
7.3.10.0060.00816.54
7.3.00.0070.00316.70
7.2.330.0070.01116.79
7.2.320.0150.00516.60
7.2.310.0030.01416.89
7.2.300.0090.00616.71
7.2.290.0100.01016.79
7.2.250.0000.01515.22
7.2.240.0160.00315.33
7.2.230.0030.01315.10
7.2.220.0060.00915.05
7.2.210.0040.00715.16
7.2.200.0000.01115.11
7.2.190.0070.01014.83
7.2.180.0000.01815.17
7.2.170.0060.00315.07
7.2.00.0070.01019.64
7.1.330.0000.01415.85
7.1.320.0040.01115.77
7.1.310.0110.00315.66
7.1.300.0060.00615.57
7.1.290.0040.01115.77
7.1.280.0070.00315.59
7.1.270.0060.00615.88
7.1.260.0110.00015.54
7.1.100.0000.01217.97
7.1.70.0040.00417.01
7.1.60.0150.00919.40
7.1.50.0070.01717.02
7.1.00.0070.07022.38
7.0.200.0030.00316.51
7.0.140.0100.06722.09
7.0.60.0070.08719.95
7.0.50.0030.04017.87
7.0.40.0130.08020.10
7.0.30.0200.06320.17
7.0.20.0270.08320.07
7.0.10.0170.04020.21
7.0.00.0030.04020.22
5.6.210.0130.07320.51
5.6.200.0100.08318.16
5.6.190.0130.06320.63
5.6.180.0030.07020.44
5.6.170.0170.04020.56
5.6.160.0100.06720.50
5.6.150.0000.04318.29
5.6.140.0070.04018.16
5.6.130.0130.05718.17
5.6.120.0030.08020.99
5.6.110.0270.04721.16
5.6.100.0070.08721.04
5.6.90.0170.06321.05
5.6.80.0070.07020.30
5.6.70.0270.04720.51
5.5.350.0270.04320.41
5.5.340.0070.04317.96
5.5.330.0100.07020.35
5.5.320.0370.03720.44
5.5.310.0300.05720.27
5.5.300.0130.07718.08
5.5.290.0030.08318.08
5.5.280.0030.07720.82
5.5.270.0030.04320.80
5.5.260.0000.09320.89
5.5.250.0070.07720.62
5.5.240.0130.07720.36
5.4.450.0630.04719.47
5.4.440.0770.05719.20
5.4.430.0470.05319.61
5.4.420.0630.06319.57
5.4.410.0070.06318.86
5.4.400.0400.06018.74
5.4.390.0400.05718.76
5.4.380.0270.04318.67
5.4.370.0100.03318.62
5.4.360.0000.05718.71
5.4.350.0060.04112.03
5.4.340.0060.04312.02
5.4.320.0050.04812.51
5.4.310.0020.04212.51
5.4.300.0050.03712.52
5.4.290.0050.03712.51
5.4.280.0050.03712.41
5.4.270.0070.03512.41
5.4.260.0070.03712.41
5.4.250.0070.03712.41
5.4.240.0060.03812.41
5.4.230.0060.03712.41
5.4.220.0050.03712.41
5.4.210.0040.03712.40
5.4.200.0120.03812.41
5.4.190.0070.03412.40
5.4.180.0110.03112.40
5.4.170.0040.03712.40
5.4.160.0070.03512.40
5.4.150.0070.03412.39
5.4.140.0060.03712.08
5.4.130.0060.03712.07
5.4.120.0040.03812.02
5.4.110.0050.03612.02
5.4.100.0060.03612.02
5.4.90.0120.03812.02
5.4.80.0070.03512.02
5.4.70.0030.03712.02
5.4.60.0050.03512.02
5.4.50.0050.03612.02
5.4.40.0050.03512.01
5.4.30.0080.03412.00
5.4.20.0080.03512.00
5.4.10.0070.03612.00
5.4.00.0040.03911.49
5.3.290.0060.04012.80
5.3.280.0030.04212.71
5.3.270.0050.04112.72
5.3.260.0080.04612.72
5.3.250.0030.04212.72
5.3.240.0080.03512.72
5.3.230.0060.03812.70
5.3.220.0050.03912.68
5.3.210.0080.03612.68
5.3.200.0070.04012.68
5.3.190.0080.04612.68
5.3.180.0080.04112.67
5.3.170.0060.03912.67
5.3.160.0050.03912.67
5.3.150.0040.04012.68
5.3.140.0060.03812.66
5.3.130.0070.04912.66
5.3.120.0080.04312.66
5.3.110.0130.03312.66
5.3.100.0100.04012.13
5.3.90.0040.03812.11
5.3.80.0060.03612.10
5.3.70.0080.03412.10
5.3.60.0090.03312.09
5.3.50.0050.05012.04
5.3.40.0100.05412.04
5.3.30.0110.04812.00
5.3.20.0080.04811.78
5.3.10.0160.04711.74
5.3.00.0040.03911.73
5.2.170.0080.0279.23
5.2.160.0030.0319.23
5.2.150.0070.0309.23
5.2.140.0090.0339.23
5.2.130.0050.0319.19
5.2.120.0090.0299.20
5.2.110.0070.0269.20
5.2.100.0040.0309.19
5.2.90.0070.0279.19
5.2.80.0040.0319.19
5.2.70.0020.0339.18
5.2.60.0050.0329.15
5.2.50.0080.0369.12
5.2.40.0010.0339.09
5.2.30.0030.0319.06
5.2.20.0060.0319.05
5.2.10.0060.0298.95
5.2.00.0070.0278.82
5.1.60.0050.0238.11
5.1.50.0040.0258.10
5.1.40.0060.0238.09
5.1.30.0050.0258.43
5.1.20.0040.0278.46
5.1.10.0030.0278.18
5.1.00.0030.0278.18
5.0.50.0040.0216.66
5.0.40.0010.0236.53
5.0.30.0040.0306.33
5.0.20.0060.0186.30
5.0.10.0010.0236.28
5.0.00.0050.0306.27
4.4.90.0030.0154.78
4.4.80.0030.0154.75
4.4.70.0030.0164.75
4.4.60.0050.0134.75
4.4.50.0030.0154.77
4.4.40.0030.0314.71
4.4.30.0050.0184.75
4.4.20.0060.0204.84
4.4.10.0050.0144.85
4.4.00.0050.0244.76
4.3.110.0050.0144.67
4.3.100.0040.0144.66
4.3.90.0020.0154.63
4.3.80.0050.0224.58
4.3.70.0030.0164.63
4.3.60.0010.0184.63
4.3.50.0070.0164.63
4.3.40.0030.0244.53
4.3.30.0010.0173.30
4.3.20.0000.0193.28
4.3.10.0030.0213.23
4.3.00.0070.0236.96

preferences:
89.61 ms | 400 KiB | 5 Q