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 { function test() { return get_class($this); } } $alias('Foo', 'Bar'); function hint_on_bar(Bar $bar) { return "worked"; } class_exists(Bar); $b = new Foo; var_dump(hint_on_bar($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)
8.3.60.0110.00316.50
8.3.50.0070.01321.98
8.3.40.0100.01018.97
8.3.30.0120.00318.83
8.3.20.0040.00420.34
8.3.10.0020.00523.67
8.3.00.0050.00319.50
8.2.180.0140.00718.41
8.2.170.0110.00322.96
8.2.160.0000.01420.38
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00020.43
8.2.120.0040.00426.35
8.2.110.0030.00620.99
8.2.100.0090.00317.88
8.2.90.0040.00419.35
8.2.80.0040.00417.97
8.2.70.0040.00417.75
8.2.60.0050.00318.04
8.2.50.0050.00318.07
8.2.40.0030.00719.43
8.2.30.0040.00420.63
8.2.20.0040.00417.93
8.2.10.0050.00218.09
8.2.00.0000.00718.14
8.1.280.0100.01025.92
8.1.270.0040.00423.94
8.1.260.0040.00428.09
8.1.250.0050.00328.09
8.1.240.0060.00322.14
8.1.230.0060.00617.48
8.1.220.0000.00817.78
8.1.210.0040.00418.77
8.1.200.0000.00917.36
8.1.190.0000.00717.64
8.1.180.0000.00818.10
8.1.170.0100.00018.51
8.1.160.0000.00822.07
8.1.150.0040.00418.94
8.1.140.0030.00619.58
8.1.130.0000.00717.76
8.1.120.0000.00717.47
8.1.110.0070.00017.48
8.1.100.0000.00717.41
8.1.90.0040.00417.47
8.1.80.0000.00717.50
8.1.70.0000.00717.41
8.1.60.0030.00617.55
8.1.50.0040.00417.44
8.1.40.0040.00417.45
8.1.30.0050.00317.67
8.1.20.0050.00317.64
8.1.10.0070.00017.55
8.1.00.0020.00517.50
8.0.300.0040.00418.77
8.0.290.0020.00516.60
8.0.280.0000.00718.44
8.0.270.0040.00417.18
8.0.260.0000.00617.26
8.0.250.0020.00517.08
8.0.240.0030.00316.95
8.0.230.0030.00317.00
8.0.220.0000.00716.88
8.0.210.0040.00416.96
8.0.200.0030.00316.91
8.0.190.0000.00817.03
8.0.180.0040.00416.95
8.0.170.0040.00417.00
8.0.160.0000.00817.02
8.0.150.0080.00016.86
8.0.140.0030.00316.86
8.0.130.0000.00713.47
8.0.120.0040.00416.90
8.0.110.0050.00316.86
8.0.100.0000.00717.02
8.0.90.0040.00416.96
8.0.80.0000.01617.02
8.0.70.0070.00016.79
8.0.60.0070.00016.96
8.0.50.0000.00717.02
8.0.30.0060.01217.22
8.0.20.0110.00917.40
8.0.10.0000.00716.99
8.0.00.0120.00816.81
7.4.330.0000.00516.76
7.4.320.0000.00716.59
7.4.300.0060.00016.65
7.4.290.0000.00716.50
7.4.280.0000.00816.51
7.4.270.0030.00316.56
7.4.260.0050.00316.62
7.4.250.0040.00416.48
7.4.240.0050.00316.51
7.4.230.0030.00516.32
7.4.220.0130.00616.50
7.4.210.0060.00916.52
7.4.200.0000.00716.41
7.4.160.0160.00016.55
7.4.150.0130.00317.40
7.4.140.0140.00717.86
7.4.130.0050.01216.59
7.4.120.0160.00716.56
7.4.110.0060.01616.52
7.4.100.0120.00916.40
7.4.90.0000.01616.66
7.4.80.0150.00319.39
7.4.70.0030.01316.63
7.4.60.0130.01016.50
7.4.50.0120.00316.63
7.4.40.0030.01316.52
7.4.30.0070.01616.53
7.4.00.0030.01415.26
7.3.330.0000.00813.46
7.3.320.0060.00013.41
7.3.310.0030.00316.41
7.3.300.0030.00316.37
7.3.290.0070.00816.40
7.3.280.0090.00716.43
7.3.270.0130.00317.40
7.3.260.0110.00616.68
7.3.250.0070.01116.50
7.3.240.0150.00616.62
7.3.230.0140.00316.39
7.3.210.0120.00616.50
7.3.200.0030.01316.43
7.3.190.0110.00716.71
7.3.180.0090.01316.36
7.3.170.0130.00316.43
7.3.160.0070.01416.39
7.3.10.0030.01016.87
7.3.00.0090.00016.77
7.2.330.0150.00416.58
7.2.320.0060.01216.89
7.2.310.0070.01016.54
7.2.300.0060.01216.86
7.2.290.0130.00316.45
7.2.130.0070.01017.14
7.2.120.0070.01017.02
7.2.110.0000.01616.98
7.2.100.0030.00717.03
7.2.90.0060.01017.22
7.2.80.0120.00316.84
7.2.70.0120.00316.63
7.2.60.0080.00616.98
7.2.50.0000.01117.13
7.2.40.0040.00717.09
7.2.30.0000.01417.07
7.2.20.0070.00416.98
7.2.10.0040.01417.13
7.2.00.0070.00618.07
7.1.250.0040.00815.61
7.1.200.0060.00615.74
7.1.100.0040.00818.24
7.1.70.0000.01016.88
7.1.60.0100.01319.36
7.1.50.0030.01017.11
7.1.00.0000.08022.45
7.0.200.0000.01016.78
7.0.60.0230.06719.89
7.0.50.0070.08017.84
7.0.40.0070.09020.13
7.0.30.0170.05020.09
7.0.20.0430.05320.19
7.0.10.0130.04720.23
7.0.00.0200.07720.30
5.6.280.0030.06721.06
5.6.210.0070.08720.49
5.6.200.0070.08018.19
5.6.190.0000.09020.58
5.6.180.0470.06720.57
5.6.170.0270.05020.47
5.6.160.0030.04320.49
5.6.150.0070.03718.23
5.6.140.0070.08318.14
5.6.130.0000.04718.14
5.6.120.0070.08320.98
5.6.110.0130.06321.02
5.6.100.0170.07721.05
5.6.90.0130.07721.03
5.6.80.0070.08320.43
5.5.350.0230.08020.45
5.5.340.0030.08718.02
5.5.330.0030.04020.27
5.5.320.0000.04020.52
5.5.310.0300.04320.50
5.5.300.0130.03317.99
5.5.290.0070.08318.08
5.5.280.0100.06720.70
5.5.270.0130.07720.95
5.5.260.0000.09020.66
5.5.250.0100.03720.59
5.5.240.0170.02720.27

preferences:
55.69 ms | 401 KiB | 5 Q