3v4l.org

run code in 300+ PHP versions simultaneously
<?php const testNamespacedClasses = [ "Namespace\To\SettingOption", "I\Was\Born\InTheUSAIwas", "Something\Onething" ]; function testSnakeCasedModelNames() { foreach (testNamespacedClasses as $class) { echo "$class => "; echo preg_replace_callback( '~([^\\\\]*\\\\)*([A-Z][a-z]*)~', function($m) { return ($m[1] ? '' : '_') . lcfirst($m[2]); }, $class ); echo "\n---\n"; } } echo testSnakeCasedModelNames();

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)
8.3.60.0000.01518.43
8.3.50.0100.01221.21
8.3.40.0110.00718.92
8.3.30.0030.01518.79
8.3.20.0040.00420.90
8.3.10.0000.00720.29
8.3.00.0040.00423.65
8.2.180.0170.00316.63
8.2.170.0150.00722.96
8.2.160.0100.00719.32
8.2.150.0060.00324.18
8.2.140.0000.00824.66
8.2.130.0000.00726.16
8.2.120.0070.00026.16
8.2.110.0110.00021.17
8.2.100.0060.00618.03
8.2.90.0090.00319.41
8.2.80.0030.00617.97
8.2.70.0030.00617.80
8.2.60.0040.00418.03
8.2.50.0080.00018.10
8.2.40.0060.00319.24
8.2.30.0040.00419.23
8.2.20.0040.00418.03
8.2.10.0040.00419.35
8.2.00.0030.00619.32
8.1.280.0110.00325.92
8.1.270.0080.00023.82
8.1.260.0030.00526.35
8.1.250.0030.00628.09
8.1.240.0110.00019.50
8.1.230.0090.00320.75
8.1.220.0050.00317.79
8.1.210.0000.00918.77
8.1.200.0030.00717.34
8.1.190.0080.00017.50
8.1.180.0000.00818.10
8.1.170.0040.00418.70
8.1.160.0040.00418.86
8.1.150.0040.00418.79
8.1.140.0070.00022.08
8.1.130.0070.00017.68
8.1.120.0000.00717.57
8.1.110.0030.00617.49
8.1.100.0060.00317.60
8.1.90.0000.00817.55
8.1.80.0000.00717.47
8.1.70.0070.00017.56
8.1.60.0060.00317.71
8.1.50.0030.00517.58
8.1.40.0040.00417.61
8.1.30.0060.00617.78
8.1.20.0040.00417.71
8.1.10.0040.00417.58
8.1.00.0030.00517.57
8.0.300.0000.00719.73
8.0.290.0060.00316.88
8.0.280.0040.00418.46
8.0.270.0000.00717.29
8.0.260.0060.00016.95
8.0.250.0080.00017.09
8.0.240.0000.00717.07
8.0.230.0030.00616.98
8.0.220.0000.00717.04
8.0.210.0000.00717.06
8.0.200.0040.00417.14
8.0.190.0050.00217.02
8.0.180.0000.00717.06
8.0.170.0040.00416.97
8.0.160.0000.00717.06
8.0.150.0000.00816.96
8.0.140.0040.00416.89
8.0.130.0030.00313.52
8.0.120.0000.00716.93
8.0.110.0040.00416.95
8.0.100.0040.00417.00
8.0.90.0000.00916.92
8.0.80.0100.00916.95
8.0.70.0080.00017.04
8.0.60.0050.00316.86
8.0.50.0070.00016.91
8.0.30.0070.01017.39
8.0.20.0140.00616.99
8.0.10.0000.00717.13
8.0.00.0140.00616.89
7.4.330.0000.00715.55
7.4.320.0040.00416.75
7.4.300.0030.00316.74
7.4.290.0050.00316.51
7.4.280.0040.00416.75
7.4.270.0070.00016.77
7.4.260.0000.00716.73
7.4.250.0070.00016.53
7.4.240.0040.00316.68
7.4.230.0040.00416.50
7.4.220.0070.00016.56
7.4.210.0070.00916.80
7.4.200.0070.00016.41
7.4.130.0120.01116.70
7.4.120.0090.00916.66
7.4.110.0050.01416.61
7.4.100.0120.00416.73
7.4.90.0030.01816.54
7.4.80.0150.00719.39
7.4.70.0090.00916.67
7.4.60.0080.01216.59
7.4.50.0060.01016.60
7.4.40.0090.00916.94
7.4.00.0070.00615.01
7.3.330.0000.00613.59
7.3.320.0000.00513.52
7.3.310.0040.00416.38
7.3.300.0040.00416.54
7.3.290.0000.00716.33
7.3.280.0060.01616.41
7.3.260.0110.00816.62
7.3.240.0150.00716.73
7.3.230.0090.00916.36
7.3.210.0100.01316.53
7.3.200.0110.00616.53
7.3.190.0040.01216.50
7.3.180.0110.00816.74
7.3.170.0090.00916.53
7.3.160.0030.01316.58
7.3.70.0060.01414.86
7.3.60.0130.00015.15
7.3.50.0070.01415.12
7.3.40.0100.00314.83
7.3.30.0050.00515.04
7.3.20.0150.00716.59
7.3.10.0070.00416.75
7.3.00.0100.00616.98
7.2.330.0130.00616.77
7.2.320.0070.01016.95
7.2.310.0060.01616.73
7.2.300.0070.01116.68
7.2.290.0030.01416.79
7.2.200.0160.00615.13
7.2.190.0110.01115.23
7.2.180.0070.00715.42
7.2.170.0120.00615.16
7.2.160.0130.01015.12
7.2.150.0070.00717.10
7.2.140.0040.00817.26
7.2.130.0040.00816.77
7.2.120.0160.00317.03
7.2.110.0100.00317.14
7.2.100.0070.00716.82
7.2.90.0090.00317.25
7.2.80.0110.01116.93
7.2.70.0120.00917.12
7.2.60.0100.00717.04
7.2.50.0130.00317.23
7.2.40.0100.00316.96
7.2.30.0120.00617.07
7.2.20.0130.00316.94
7.2.10.0060.00816.88
7.2.00.0140.00817.06
7.1.300.0170.00915.88
7.1.290.0060.00615.69
7.1.280.0070.00715.94
7.1.270.0040.01715.88
7.1.260.0080.00416.20
7.1.250.0040.00816.08

preferences:
61.8 ms | 401 KiB | 5 Q