3v4l.org

run code in 300+ PHP versions simultaneously
<?php $alias_list = []; $alias_autoloader = function($class_name) use (&$alias_list) { if (isset($alias_list[strtolower($class_name)])) { class_alias($alias_list[strtolower($class_name)], $class_name); return true; } }; $alias = function($from, $to) use (&$alias_list) { $alias_list[strtolower($to)] = $from; }; spl_autoload_register($alias_autoloader); class Foo { } $alias('Foo', 'Bar'); $alias('Foo', 'BarCollision'); $b = new Bar; $c = new BarCollision; var_dump($b->test(), $c->test());

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)
8.3.60.0110.00416.50
8.3.50.0120.00721.98
8.3.40.0060.01218.96
8.3.30.0040.01118.87
8.3.20.0040.00420.17
8.3.10.0080.00023.66
8.3.00.0080.00019.63
8.2.180.0110.01118.66
8.2.170.0060.01322.96
8.2.160.0100.00320.52
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0030.00620.30
8.2.120.0040.00426.35
8.2.110.0120.00920.47
8.2.100.0040.00717.91
8.2.90.0000.00819.24
8.2.80.0050.00317.97
8.2.70.0040.00417.63
8.2.60.0000.00818.05
8.2.50.0030.00618.07
8.2.40.0040.00419.34
8.2.30.0000.00720.55
8.2.20.0070.00017.81
8.2.10.0040.00418.01
8.2.00.0040.00418.00
8.1.280.0120.00625.92
8.1.270.0080.00023.96
8.1.260.0070.00028.09
8.1.250.0080.00028.09
8.1.240.0000.00823.80
8.1.230.0080.00422.70
8.1.220.0040.00417.78
8.1.210.0040.00418.77
8.1.200.0040.00417.23
8.1.190.0080.00017.77
8.1.180.0000.00818.10
8.1.170.0060.00318.65
8.1.160.0030.00522.07
8.1.150.0000.00718.92
8.1.140.0070.00319.59
8.1.130.0070.00017.72
8.1.120.0040.00317.45
8.1.110.0000.00717.43
8.1.100.0040.00417.46
8.1.90.0040.00417.54
8.1.80.0030.00517.52
8.1.70.0030.00317.30
8.1.60.0000.00917.50
8.1.50.0040.00417.50
8.1.40.0000.00917.46
8.1.30.0080.00017.63
8.1.20.0040.00417.68
8.1.10.0000.00817.62
8.1.00.0040.00417.59
8.0.300.0030.00618.77
8.0.290.0050.00216.88
8.0.280.0000.00818.45
8.0.270.0000.00717.32
8.0.260.0030.00317.26
8.0.250.0000.00717.04
8.0.240.0040.00417.02
8.0.230.0040.00416.95
8.0.220.0040.00416.84
8.0.210.0040.00417.00
8.0.200.0000.00616.94
8.0.190.0040.00417.07
8.0.180.0050.00316.98
8.0.170.0050.00316.94
8.0.160.0040.00417.00
8.0.150.0030.00316.91
8.0.140.0050.00216.87
8.0.130.0000.00713.35
8.0.120.0040.00416.98
8.0.110.0000.00716.83
8.0.100.0040.00416.96
8.0.90.0040.00416.95
8.0.80.0070.00716.91
8.0.70.0040.00416.87
8.0.60.0000.00816.84
8.0.50.0000.00716.94
8.0.30.0130.00617.16
8.0.20.0140.00617.40
8.0.10.0040.00416.91
8.0.00.0090.01016.78
7.4.330.0000.00516.84
7.4.320.0040.00416.56
7.4.300.0000.00716.69
7.4.290.0040.00416.59
7.4.280.0050.00216.50
7.4.270.0000.00716.59
7.4.260.0070.00016.54
7.4.250.0040.00416.41
7.4.240.0030.00416.58
7.4.230.0040.00416.71
7.4.220.0080.01116.63
7.4.210.0090.00616.56
7.4.200.0000.00716.34
7.4.160.0120.00316.50
7.4.150.0060.01217.40
7.4.140.0130.00917.86
7.4.130.0100.00916.63
7.4.120.0110.00816.47
7.4.110.0030.01416.55
7.4.100.0110.00716.58
7.4.90.0080.00816.55
7.4.80.0130.00919.39
7.4.70.0070.01316.48
7.4.60.0060.01016.44
7.4.50.0060.01016.55
7.4.40.0090.00916.42
7.4.30.0070.01416.46
7.4.00.0070.01014.95
7.3.330.0060.00013.39
7.3.320.0000.00513.45
7.3.310.0030.00316.26
7.3.300.0040.00416.31
7.3.290.0090.00716.40
7.3.280.0100.00816.41
7.3.270.0060.01117.40
7.3.260.0070.01016.64
7.3.250.0070.01016.46
7.3.240.0090.00816.53
7.3.230.0070.01016.39
7.3.210.0060.01316.57
7.3.200.0140.00416.47
7.3.190.0070.01016.40
7.3.180.0060.01016.37
7.3.170.0110.00916.39
7.3.160.0090.01216.53
7.3.120.0030.01614.81
7.3.110.0070.01114.83
7.3.100.0040.01214.86
7.3.90.0030.01014.99
7.3.80.0060.00314.67
7.3.70.0000.01014.87
7.3.60.0040.01114.89
7.3.50.0080.00414.96
7.3.40.0060.00614.71
7.3.30.0040.00814.84
7.3.20.0100.00316.67
7.3.10.0000.01016.74
7.3.00.0030.00916.46
7.2.330.0180.00016.62
7.2.320.0060.01216.36
7.2.310.0100.00616.75
7.2.300.0110.00716.84
7.2.290.0150.00916.77
7.2.250.0090.00915.28
7.2.240.0030.01715.13
7.2.230.0040.01514.85
7.2.220.0070.00715.23
7.2.210.0060.00314.61
7.2.200.0030.00715.21
7.2.190.0000.01615.15
7.2.180.0070.00314.90
7.2.170.0030.00815.04
7.2.130.0040.01117.04
7.2.120.0000.01317.10
7.2.110.0030.00716.95
7.2.100.0070.00716.87
7.2.90.0100.00317.00
7.2.80.0140.00317.10
7.2.70.0050.00517.07
7.2.60.0060.00617.01
7.2.50.0040.00716.99
7.2.40.0100.01017.08
7.2.30.0120.00317.16
7.2.20.0110.00716.92
7.2.10.0050.00516.93
7.2.00.0030.00918.06
7.1.330.0060.00615.78
7.1.320.0000.01115.58
7.1.310.0100.00315.66
7.1.300.0030.00715.83
7.1.290.0110.00315.82
7.1.280.0120.00415.63
7.1.270.0050.00515.78
7.1.260.0040.00815.59
7.1.250.0130.00315.50
7.1.200.0040.01215.85
7.1.100.0030.00918.13
7.1.70.0030.00517.05
7.1.60.0040.02119.36
7.1.50.0000.02116.76
7.1.00.0070.07322.43
7.0.200.0070.00316.85
7.0.60.0070.08019.94
7.0.50.0030.08317.95
7.0.40.0100.09020.18
7.0.30.0230.04020.22
7.0.20.0330.08020.30
7.0.10.0030.09020.15
7.0.00.0100.08320.07
5.6.280.0030.03721.05
5.6.210.0030.06320.73
5.6.200.0070.06018.13
5.6.190.0100.08720.61
5.6.180.0400.07720.52
5.6.170.0270.05320.44
5.6.160.0070.04720.52
5.6.150.0070.08018.23
5.6.140.0070.04018.27
5.6.130.0100.08018.21
5.6.120.0030.07020.99
5.6.110.0070.06721.04
5.6.100.0130.05021.00
5.6.90.0070.08320.98
5.6.80.0100.07020.46
5.5.350.0200.06720.41
5.5.340.0100.07717.99
5.5.330.0070.09020.41
5.5.320.0000.06020.24
5.5.310.0300.07320.31
5.5.300.0070.05318.01
5.5.290.0070.08717.98
5.5.280.0070.08320.75
5.5.270.0100.06320.88
5.5.260.0030.08720.75
5.5.250.0130.08020.71
5.5.240.0200.07720.16

preferences:
51.4 ms | 401 KiB | 5 Q