3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class MarkupDocument {} class Html5Document extends MarkupDocument {} class ParentClass { public ?MarkupDocument $doc; } class ChildClass extends ParentClass { public ?Html5Document $doc; }

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)
8.2.100.0240.00517.57
8.2.90.0170.00917.61
8.2.80.0240.00017.57
8.2.70.0230.00217.57
8.2.60.0210.00417.57
8.2.50.0200.00417.57
8.2.40.0230.00017.57
8.2.30.0160.00517.57
8.2.20.0180.00817.57
8.2.10.0150.01117.57
8.2.00.0160.00717.57
8.1.230.0090.00618.91
8.1.220.0260.00017.57
8.1.210.0140.01017.57
8.1.200.0140.00617.57
8.1.190.0150.00717.57
8.1.180.0090.01317.57
8.1.170.0120.00817.57
8.1.160.0180.00317.57
8.1.150.0140.00717.57
8.1.140.0240.00617.57
8.1.130.0230.00017.57
8.1.120.0160.00517.57
8.1.110.0170.00417.57
8.1.100.0180.00617.57
8.1.90.0190.00317.57
8.1.80.0230.00317.57
8.1.70.0150.00717.57
8.1.60.0200.00017.57
8.1.50.0220.00017.57
8.1.40.0090.01417.57
8.1.30.0170.00417.57
8.1.20.0220.00017.57
8.1.10.0170.00417.57
8.1.00.0220.00117.57
8.0.300.0200.00217.57
8.0.290.0180.00317.57
8.0.280.0180.00617.57
8.0.270.0250.00317.57
8.0.260.0210.00017.57
8.0.250.0220.00017.57
8.0.240.0170.00417.57
8.0.230.0170.00317.57
8.0.220.0130.00717.57
8.0.210.0110.01117.57
8.0.200.0140.00717.57
8.0.190.0170.00417.57
8.0.180.0040.01717.57
8.0.170.0130.00717.57
8.0.160.0180.00617.57
8.0.150.0180.00517.57
8.0.140.0160.00517.57
8.0.130.0150.00717.57
8.0.120.0260.00317.57
8.0.110.0210.00317.57
8.0.100.0190.00317.57
8.0.90.0160.00617.57
8.0.80.0150.00617.57
8.0.70.0180.00617.57
8.0.60.0120.01217.57
8.0.50.0150.00617.57
8.0.30.0240.00017.57
8.0.20.0150.00517.57
8.0.10.0160.00717.57

preferences:
141.55 ms | 1405 KiB | 7 Q