3v4l.org

run code in 300+ PHP versions simultaneously
<?php function event($n, $h = null) { static $e = []; return $h ? $e[$n][] = $h : (isset($e[$n]) ? array_walk($e[$n], function($e) {$e();}) : 0); } event('hello', function () { echo 'hello!'; }); echo event('hello') ? 'true!' : 'false!'; echo event('world') ? 'true!' : 'false!';

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)
8.3.60.0040.01416.75
8.3.50.0140.00018.17
8.3.40.0080.00818.98
8.3.30.0100.00318.67
8.3.20.0080.00021.90
8.3.10.0080.00021.94
8.3.00.0050.00319.50
8.2.180.0100.00718.16
8.2.170.0110.00422.96
8.2.160.0030.01019.46
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0070.00022.03
8.2.120.0080.00026.35
8.2.110.0040.00422.27
8.2.100.0090.00317.78
8.2.90.0040.00419.09
8.2.80.0030.00517.97
8.2.70.0080.00017.61
8.2.60.0000.00817.93
8.2.50.0000.00818.10
8.2.40.0050.00320.65
8.2.30.0000.00819.32
8.2.20.0000.01018.12
8.2.10.0070.00018.01
8.2.00.0000.00718.11
8.1.280.0090.00625.92
8.1.270.0000.00820.72
8.1.260.0080.00026.35
8.1.250.0020.00528.09
8.1.240.0030.00620.99
8.1.230.0070.00317.79
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0090.00017.36
8.1.190.0040.00417.22
8.1.180.0000.00718.10
8.1.170.0090.00018.28
8.1.160.0050.00218.82
8.1.150.0030.00618.88
8.1.140.0040.00419.49
8.1.130.0000.00718.84
8.1.120.0000.00717.50
8.1.110.0060.00317.46
8.1.100.0020.00517.39
8.1.90.0040.00417.39
8.1.80.0000.00817.52
8.1.70.0040.00417.36
8.1.60.0000.00717.53
8.1.50.0000.00817.54
8.1.40.0030.00517.52
8.1.30.0000.00817.69
8.1.20.0000.00717.59
8.1.10.0000.00717.58
8.1.00.0040.00417.41
8.0.300.0070.00018.77
8.0.290.0030.00616.63
8.0.280.0050.00318.45
8.0.270.0050.00317.26
8.0.260.0030.00317.14
8.0.250.0040.00416.90
8.0.240.0000.00816.85
8.0.230.0000.00716.98
8.0.220.0040.00416.77
8.0.210.0000.00716.94
8.0.200.0070.00016.94
8.0.190.0030.00616.98
8.0.180.0000.00716.93
8.0.170.0000.00716.93
8.0.160.0030.00516.81
8.0.150.0050.00216.84
8.0.140.0040.00416.91
8.0.130.0000.00713.32
8.0.120.0040.00416.86
8.0.110.0040.00416.95
8.0.100.0030.00516.78
8.0.90.0040.00416.73
8.0.80.0070.01116.93
8.0.70.0000.00716.85
8.0.60.0040.00416.83
8.0.50.0050.00316.93
8.0.30.0070.00917.10
8.0.20.0110.00817.40
8.0.10.0050.00217.01
8.0.00.0100.00716.96
7.4.330.0020.00215.55
7.4.320.0060.00016.49
7.4.300.0060.00016.61
7.4.290.0000.00716.50
7.4.280.0050.00316.42
7.4.270.0040.00416.56
7.4.260.0050.00316.51
7.4.250.0040.00416.45
7.4.240.0090.00016.58
7.4.230.0030.00316.42
7.4.220.0100.01016.60
7.4.210.0120.00516.57
7.4.200.0080.00016.32
7.4.160.0100.00816.45
7.4.150.0180.00317.40
7.4.140.0130.00617.86
7.4.130.0130.01016.47
7.4.120.0120.00916.52
7.4.110.0130.00916.32
7.4.100.0110.01216.50
7.4.90.0030.01516.49
7.4.80.0100.00619.39
7.4.70.0100.00616.51
7.4.60.0110.00616.52
7.4.50.0060.00916.62
7.4.40.0030.01316.56
7.4.30.0030.01416.57
7.4.00.0020.01614.76
7.3.330.0060.00013.33
7.3.320.0020.00213.34
7.3.310.0070.00016.38
7.3.300.0040.00416.33
7.3.290.0030.00316.33
7.3.280.0060.01016.38
7.3.270.0110.00617.40
7.3.260.0120.00716.40
7.3.250.0100.00716.45
7.3.240.0050.01216.41
7.3.230.0180.00216.33
7.3.210.0070.01116.47
7.3.200.0130.00616.51
7.3.190.0100.00716.61
7.3.180.0030.01216.57
7.3.170.0060.01116.40
7.3.160.0060.01516.46
7.3.120.0080.00814.77
7.3.110.0110.00714.80
7.3.100.0070.01014.91
7.3.90.0030.00914.87
7.3.80.0080.00814.84
7.3.70.0110.00414.64
7.3.60.0060.00914.78
7.3.50.0000.01514.83
7.3.40.0060.00914.94
7.3.30.0000.01714.74
7.3.20.0030.00616.63
7.3.10.0080.00016.50
7.3.00.0100.00016.66
7.2.330.0140.00316.66
7.2.320.0090.01416.64
7.2.310.0060.01016.78
7.2.300.0030.01916.28
7.2.290.0080.00816.79
7.2.250.0060.01314.95
7.2.240.0030.01714.92
7.2.230.0070.01015.18
7.2.220.0000.01615.23
7.2.210.0070.01015.30
7.2.200.0060.01214.97
7.2.190.0030.01415.02
7.2.180.0000.00915.11
7.2.170.0100.00315.04
7.2.60.0070.00716.95
7.2.00.0000.01219.29
7.1.330.0100.00315.91
7.1.320.0040.00815.73
7.1.310.0090.00315.87
7.1.300.0040.01115.85
7.1.290.0040.00815.63
7.1.280.0000.01515.78
7.1.270.0040.01115.67
7.1.260.0110.00415.97
7.1.200.0000.01215.86
7.1.100.0100.00617.82
7.1.70.0000.00917.09
7.1.60.0070.00317.41
7.1.50.0200.02032.54
7.1.40.0370.01732.43
7.1.30.2630.01332.37
7.1.20.0430.01032.59
7.1.10.0170.01014.71
7.1.00.0200.01714.71
7.0.200.0170.00916.55
7.0.190.0170.00714.91
7.0.180.0200.01714.56
7.0.170.0200.01714.16
7.0.160.0300.00714.36
7.0.150.0200.00314.31
7.0.140.0130.01314.35
7.0.130.0300.01314.53
7.0.120.0330.00714.55
7.0.110.0230.01014.42
7.0.100.0230.01014.43
7.0.90.0270.00714.46
7.0.80.0270.01714.61
7.0.70.0300.01014.35
7.0.60.0170.01314.27
7.0.50.0200.00314.58
7.0.40.0230.01014.56
7.0.30.0170.01714.36
7.0.20.0130.01314.55
7.0.10.0170.01014.68
7.0.00.0270.01314.53

preferences:
53.74 ms | 400 KiB | 5 Q