3v4l.org

run code in 300+ PHP versions simultaneously
<?php class AliasesLoader { private $aliases = array(); /** * @param array $aliases */ public function __construct($aliases) { $this->setAliases($aliases); } public function register() { spl_autoload_register(array($this, 'load')); } public function load($class) { if ($this->hasAlias($class)) { class_alias($this->getAlias($class), $class); } } protected function getAlias($class) { return $this->aliases[$class]; } protected function hasAlias($class) { return isset($this->aliases[$class]); } private function setAliases(array $aliases) { $this->aliases = $aliases; } } $a = new AliasesLoader(array('B' => 'A')); $a->register(); spl_autoload_register(function ($c) { var_dump('autoloading "'.$c.'"'); }); new B();

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)
8.3.70.0120.00918.43
8.3.60.0110.00418.80
8.3.50.0070.00921.33
8.3.40.0090.00618.79
8.3.30.0100.01019.13
8.3.20.0030.00520.34
8.3.10.0000.00822.04
8.3.00.0040.00422.45
8.2.190.0090.00918.41
8.2.180.0110.00416.88
8.2.170.0060.00922.96
8.2.160.0100.00320.53
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0180.00326.16
8.2.120.0050.00319.66
8.2.110.0100.00020.52
8.2.100.0040.00717.84
8.2.90.0040.00419.05
8.2.80.0000.00819.18
8.2.70.0040.00417.62
8.2.60.0080.00017.93
8.2.50.0100.00018.07
8.2.40.0050.00318.16
8.2.30.0040.00418.20
8.2.20.0050.00217.86
8.2.10.0060.00317.74
8.2.00.0050.00317.69
8.1.280.0040.01125.92
8.1.270.0040.00420.23
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0100.00022.18
8.1.230.0110.00017.45
8.1.220.0000.00817.78
8.1.210.0090.00018.77
8.1.200.0000.00917.35
8.1.190.0050.00317.53
8.1.180.0060.00618.50
8.1.170.0000.00818.54
8.1.160.0000.00722.05
8.1.150.0090.00018.57
8.1.140.0050.00217.53
8.1.130.0070.00017.89
8.1.120.0040.00417.41
8.1.110.0000.00717.36
8.1.100.0000.00717.37
8.1.90.0040.00417.49
8.1.80.0000.00717.38
8.1.70.0000.00717.46
8.1.60.0000.00817.59
8.1.50.0000.00817.55
8.1.40.0000.00817.43
8.1.30.0040.00417.66
8.1.20.0030.00617.59
8.1.10.0040.00417.58
8.1.00.0090.00017.48
8.0.300.0000.00818.77
8.0.290.0000.00717.02
8.0.280.0070.00018.46
8.0.270.0040.00417.25
8.0.260.0000.00716.77
8.0.250.0030.00316.92
8.0.240.0000.00716.94
8.0.230.0000.00716.99
8.0.220.0070.00017.01
8.0.210.0030.00316.97
8.0.200.0030.00317.01
8.0.190.0040.00416.98
8.0.180.0040.00416.82
8.0.170.0040.00417.02
8.0.160.0040.00316.87
8.0.150.0070.00016.74
8.0.140.0030.00616.76
8.0.130.0000.00613.38
8.0.120.0000.00816.97
8.0.110.0050.00316.83
8.0.100.0040.00416.85
8.0.90.0050.00216.91
8.0.80.0100.00617.02
8.0.70.0040.00416.77
8.0.60.0050.00216.99
8.0.50.0040.00417.01
8.0.30.0100.00817.11
8.0.20.0080.01117.40
8.0.10.0040.00417.13
8.0.00.0080.01016.69
7.4.330.0000.00615.08
7.4.320.0060.00016.50
7.4.300.0000.00616.58
7.4.290.0030.00316.46
7.4.280.0040.00416.52
7.4.270.0030.00316.63
7.4.260.0070.00016.66
7.4.250.0000.00716.40
7.4.240.0030.00316.59
7.4.230.0030.00316.64
7.4.220.0150.00416.65
7.4.210.0130.00716.63
7.4.200.0000.00816.50
7.4.190.0030.00616.57
7.4.160.0130.00316.50
7.4.150.0090.00817.40
7.4.140.0080.01417.86
7.4.130.0070.01316.53
7.4.120.0140.00516.59
7.4.110.0130.00716.64
7.4.100.0140.00416.52
7.4.90.0120.01016.36
7.4.80.0160.00419.39
7.4.70.0110.00616.57
7.4.60.0030.01616.45
7.4.50.0070.00016.57
7.4.40.0100.00722.77
7.4.30.0110.00616.39
7.4.00.0070.01114.82
7.3.330.0030.00313.29
7.3.320.0000.00513.45
7.3.310.0000.00716.48
7.3.300.0030.00316.30
7.3.290.0040.01116.38
7.3.280.0070.00916.33
7.3.270.0140.00417.40
7.3.260.0090.00916.34
7.3.250.0100.01816.50
7.3.240.0080.00816.40
7.3.230.0090.00916.49
7.3.210.0110.00516.47
7.3.200.0130.01019.39
7.3.190.0060.01016.51
7.3.180.0000.02216.36
7.3.170.0190.00316.58
7.3.160.0150.00016.41
7.3.120.0110.00415.06
7.3.10.0060.00616.74
7.3.00.0040.00816.69
7.2.330.0060.01216.86
7.2.320.0140.00716.54
7.2.310.0060.01116.69
7.2.300.0110.00616.68
7.2.290.0140.00416.62
7.2.130.0050.00816.82
7.2.120.0090.00516.98
7.2.110.0010.01116.85
7.2.100.0090.00516.80
7.2.90.0030.01216.77
7.2.80.0050.00916.99
7.2.70.0000.00916.99
7.2.60.0050.00916.96
7.2.50.0050.00616.87
7.2.40.0030.01016.84
7.2.30.0070.00716.93
7.2.20.0050.00817.02
7.2.10.0060.00616.90
7.2.00.0130.01017.69
7.1.250.0060.00515.83
7.1.200.0000.01115.77
7.1.100.0040.00717.88
7.1.70.0030.00917.28
7.1.60.0070.01819.82
7.1.50.0130.00717.12
7.1.00.0100.06022.35
7.0.200.0040.01116.86
7.0.140.0030.06721.95
7.0.60.0000.04319.89
7.0.50.0100.07017.73
7.0.40.0200.07020.26
7.0.30.0370.07320.23
7.0.20.0330.03720.18
7.0.10.0270.05720.26
7.0.00.0070.03720.15
5.6.280.0000.07720.99
5.6.210.0070.06020.48
5.6.200.0100.08018.20
5.6.190.0030.09020.39
5.6.180.3500.04320.63
5.6.170.0270.07720.55
5.6.160.0070.05320.56
5.6.150.0100.07018.18
5.6.140.0070.04318.20
5.6.130.0030.09018.21
5.6.120.0100.08021.03
5.6.110.0070.06321.01
5.6.100.0030.08020.86
5.6.90.0130.05020.96
5.6.80.0070.05320.38
5.6.70.0100.03720.43
5.5.350.0230.06720.43
5.5.340.0070.03317.97
5.5.330.0100.08020.13
5.5.320.0230.08020.36
5.5.310.0230.06720.32
5.5.300.0030.04018.02
5.5.290.0130.08017.97
5.5.280.0030.05720.70
5.5.270.0070.08020.85
5.5.260.0070.08320.80
5.5.250.0070.08720.63
5.5.240.0100.07720.20
5.4.450.0130.04719.52
5.4.440.0100.05019.39
5.4.430.0170.04019.40
5.4.420.0170.04719.38
5.4.410.0170.07319.32
5.4.400.0230.05319.25
5.4.390.0170.04319.19
5.4.380.0170.06019.09
5.4.370.0270.06718.99
5.4.360.0230.07319.08
5.4.350.0230.03719.20
5.4.340.0170.04018.84
5.4.320.0270.04319.09
5.4.310.0270.06319.08
5.4.300.0170.07319.23
5.4.290.0170.07318.94
5.4.280.0030.04719.14
5.4.270.0230.05018.96
5.4.260.0270.06719.07
5.4.250.0200.04318.98
5.4.240.0270.07019.02
5.4.230.0200.07319.22
5.4.220.0200.07719.14
5.4.210.0200.04019.21
5.4.200.0270.04318.98
5.4.190.0170.06319.14
5.4.180.0270.05319.14
5.4.170.0230.06018.92
5.4.160.0170.04318.96
5.4.150.0230.03318.83
5.4.140.0200.04316.53
5.4.130.0230.05716.50
5.4.120.0300.04016.36
5.4.110.0130.04716.51
5.4.100.0230.06716.55
5.4.90.0230.04016.45
5.4.80.0170.06016.45
5.4.70.0200.06316.35
5.4.60.0230.04316.42
5.4.50.0200.03716.32
5.4.40.0230.06716.48
5.4.30.0170.07716.55
5.4.20.0170.07016.42
5.4.10.0200.04016.55
5.4.00.0230.04715.80
5.3.290.0230.03314.69
5.3.280.0200.03314.53
5.3.270.0200.05014.69
5.3.260.0170.04014.63
5.3.250.0130.04014.54
5.3.240.0300.06314.83
5.3.230.0130.04014.57
5.3.220.0270.06714.66
5.3.210.0170.07714.58
5.3.200.0330.05714.70
5.3.190.0170.04014.65
5.3.180.0230.07014.58
5.3.170.0200.05014.73
5.3.160.0270.06014.57
5.3.150.0200.04014.62
5.3.140.0170.04714.64
5.3.130.0170.07314.65
5.3.120.0100.04014.46
5.3.110.0170.06314.47
5.3.100.0230.06314.05
5.3.90.0170.04313.93
5.3.80.0170.03714.08
5.3.70.0270.06314.00
5.3.60.0170.06013.91
5.3.50.0230.05714.18
5.3.40.0230.07014.04
5.3.30.0270.06313.82
5.3.20.0230.03713.63
5.3.10.0200.04713.89
5.3.00.0230.06313.58
5.2.170.0200.04011.43
5.2.160.0100.04011.43
5.2.150.0230.05311.43
5.2.140.0070.03711.43
5.2.130.0130.03711.43
5.2.120.0230.03011.43
5.2.110.0200.03711.43
5.2.100.0200.03711.43
5.2.90.0200.05711.43
5.2.80.0200.06011.43
5.2.70.0200.04711.43
5.2.60.0200.03711.43
5.2.50.0200.03311.43
5.2.40.0170.05011.43
5.2.30.0100.03711.43
5.2.20.0130.03711.43
5.2.10.0170.06011.44
5.2.00.0230.02311.44
5.1.60.0130.03711.44
5.1.50.0100.02711.46
5.1.40.0130.02011.47
5.1.30.0070.02711.48
5.1.20.0100.02711.48
5.1.10.0070.02711.48
5.1.00.0130.02011.48
5.0.50.0100.03011.49
5.0.40.0070.02011.50
5.0.30.0070.06011.50
5.0.20.0030.02011.51
5.0.10.0130.03011.51
5.0.00.0100.04311.51
4.4.90.0030.02311.43
4.4.80.0070.02011.43
4.4.70.0130.02311.43
4.4.60.0070.02011.43
4.4.50.0170.02311.43
4.4.40.0070.02311.44
4.4.30.0070.01311.46
4.4.20.0070.01711.48
4.4.10.0100.01311.49
4.4.00.0070.03011.49
4.3.110.0070.01311.50
4.3.100.0030.02011.51
4.3.90.0030.02011.51
4.3.80.0030.02711.51
4.3.70.0030.01711.51
4.3.60.0070.02011.51
4.3.50.0030.02311.51
4.3.40.0030.03711.51
4.3.30.0030.01711.51
4.3.20.0000.02011.51
4.3.10.0000.01711.51
4.3.00.0000.01711.51

preferences:
50.17 ms | 401 KiB | 5 Q