3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types = 1); namespace { class Foo { const TEST = 'global'; } } namespace ClassConstFetchDefined { class Foo { const TEST = 'namspaced'; } class HelloWorld { public static function doFoo() { if (defined('Foo::TEST')) { echo \Foo::TEST . PHP_EOL; } else { echo 'not defined' . PHP_EOL; } if (defined('\Foo::TEST')) { echo \Foo::TEST . PHP_EOL; } else { echo 'not defined' . PHP_EOL; } if (defined('ClassConstFetchDefined\Foo::TEST')) { echo Foo::TEST . PHP_EOL;; } else { echo 'not defined' . PHP_EOL; } if (defined('\ClassConstFetchDefined\Foo::TEST')) { echo Foo::TEST . PHP_EOL; } else { echo 'not defined' . PHP_EOL; } } } (new HelloWorld)->doFoo(); }

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)
8.4.120.0130.00724.00
8.4.110.0110.00922.68
8.4.100.0080.00418.88
8.4.90.0090.01118.90
8.4.80.0080.00520.29
8.4.70.0070.00517.97
8.4.60.0110.00919.14
8.4.50.0110.01017.44
8.4.40.0100.01017.94
8.4.30.0070.00318.72
8.4.20.0060.00317.93
8.4.10.0090.00023.52
8.3.250.0090.00219.05
8.3.240.0080.01016.98
8.3.230.0050.00319.07
8.3.220.0070.01118.73
8.3.210.0040.00316.71
8.3.200.0060.00316.71
8.3.190.0040.00420.85
8.3.180.0080.01118.20
8.3.170.0120.00819.16
8.3.160.0070.01118.45
8.3.150.0060.01219.05
8.3.140.0000.00816.61
8.3.130.0060.00316.70
8.3.120.0050.00320.90
8.3.110.0000.00716.79
8.3.100.0060.00318.43
8.3.90.0110.00726.77
8.3.80.0090.00016.75
8.3.70.0090.01216.58
8.3.60.0140.00418.43
8.3.50.0100.00320.12
8.3.40.0130.00020.47
8.3.30.0110.00318.77
8.3.20.0000.00724.18
8.3.10.0040.00424.66
8.3.00.0080.00026.16
8.2.290.0090.01020.23
8.2.280.0110.01018.30
8.2.270.0180.00020.72
8.2.260.0050.00318.82
8.2.250.0120.00316.74
8.2.240.0040.00417.41
8.2.230.0050.00320.94
8.2.220.0040.00424.06
8.2.210.0040.00426.77
8.2.200.0040.01316.75
8.2.190.0070.00718.42
8.2.180.0070.00725.92
8.2.170.0070.00718.75
8.2.160.0050.00822.96
8.2.150.0080.00025.66
8.2.140.0060.00324.66
8.2.130.0080.00026.16
8.2.120.0060.00320.97
8.2.110.0040.00722.26
8.2.100.0070.00717.78
8.2.90.0070.00319.27
8.2.80.0040.00417.97
8.2.70.0060.00317.50
8.2.60.0000.00817.91
8.2.50.0050.00318.07
8.2.40.0000.00818.16
8.2.30.0040.00418.03
8.2.20.0040.00421.03
8.2.10.0050.00318.13
8.2.00.0030.00519.27
8.1.330.0150.00121.90
8.1.320.0130.00915.92
8.1.310.0060.00316.91
8.1.300.0180.00016.72
8.1.290.0090.00030.84
8.1.280.0070.01125.92
8.1.270.0040.00424.66
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00324.02
8.1.230.0110.00019.10
8.1.220.0060.00317.74
8.1.210.0030.00618.77
8.1.200.0090.00017.22
8.1.190.0050.00516.98
8.1.180.0000.00818.10
8.1.170.0000.00818.76
8.1.160.0020.00518.81
8.1.150.0050.00218.59
8.1.140.0050.00217.41
8.1.130.0000.00718.77
8.1.120.0120.00417.32
8.1.110.0110.00417.37
8.1.100.0130.00217.37
8.1.90.0030.01317.41
8.1.80.0130.00317.42
8.1.70.0130.00317.41
8.1.60.0100.00717.47
8.1.50.0070.00717.43
8.1.40.0140.00517.46
8.1.30.0120.00317.59
8.1.20.0150.00017.58
8.1.10.0090.00917.49
8.1.00.0060.00517.20
8.0.300.0040.00418.77
8.0.290.0050.00216.75
8.0.280.0030.00318.38
8.0.270.0030.00317.15
8.0.260.0000.00618.39
8.0.250.0090.00716.95
8.0.240.0040.01116.89
8.0.230.0130.00216.80
8.0.220.0080.00716.82
8.0.210.0110.00416.74
8.0.200.0100.00616.79
8.0.190.0100.00516.87
8.0.180.0120.00416.87
8.0.170.0100.00416.88
8.0.160.0100.00416.84
8.0.150.0090.00616.69
8.0.140.0110.00416.74
8.0.130.0080.00816.83
8.0.120.0100.00616.83
8.0.110.0110.00416.73
8.0.100.0070.00916.85
8.0.90.0080.00616.74
8.0.80.0120.00316.80
8.0.70.0110.00416.77
8.0.60.0090.00716.76
8.0.50.0120.00316.81
8.0.30.0100.00516.83
8.0.20.0110.00516.77
8.0.10.0110.00216.96
7.4.330.0000.00515.55
7.4.320.0050.00716.29
7.4.300.0160.00116.39
7.4.290.0120.00616.37
7.4.280.0070.00716.49
7.4.270.0100.00316.56
7.4.260.0100.00316.35
7.4.250.0050.00616.40
7.4.240.0050.00616.31
7.4.230.0090.00216.24
7.4.220.0110.00316.44
7.4.210.0090.00316.29
7.4.200.0040.00916.46
7.4.190.0100.00416.53
7.4.180.0100.00416.51
7.4.160.0110.00416.51
7.4.150.0090.00516.39
7.4.140.0120.00316.35
7.4.130.0090.00716.39
7.4.120.0100.00416.32
7.4.110.0110.00316.38
7.4.100.0080.00416.40
7.4.90.0110.00216.20
7.4.80.0080.00616.38
7.4.70.0080.00716.40
7.4.60.0060.00916.44
7.4.50.0080.00716.30
7.4.40.0120.00116.26
7.4.30.0060.00816.47
7.4.20.0090.00216.35
7.4.10.0040.00616.44
7.4.00.0070.00116.37

preferences:
27.23 ms | 403 KiB | 5 Q