3v4l.org

run code in 500+ PHP versions simultaneously
<?php // defined before the parent class : no error class y extends x {} abstract class x { abstract function foo(); } // defined after the parent class : error class y2 extends x {} ?>

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)
8.4.30.0390.01317.48
8.4.20.0390.01517.34
8.4.10.0270.00317.62
8.3.160.0150.01116.55
8.3.150.0120.00416.28
8.3.140.0120.00416.32
8.3.130.0140.00716.54
8.3.120.0160.00416.18
8.3.110.0140.00016.34
8.3.100.0200.00516.25
8.3.90.0100.01016.21
8.3.80.0120.00816.18
8.3.70.0180.00016.19
8.3.60.0160.00316.36
8.3.50.0110.00915.97
8.3.40.0300.00316.79
8.3.30.0200.00617.28
8.3.20.0240.00017.05
8.3.10.0220.00217.34
8.3.00.0090.00617.22
8.2.270.0220.00416.46
8.2.260.0160.00915.81
8.2.250.0170.00416.85
8.2.240.0070.01116.46
8.2.230.0090.00616.25
8.2.220.0090.00916.06
8.2.210.0000.01516.11
8.2.200.0210.00416.10
8.2.190.0110.00416.34
8.2.180.0220.00016.04
8.2.170.0170.00717.54
8.2.160.0160.00417.29
8.2.150.0080.01217.45
8.2.140.0220.00017.20
8.2.130.0050.00916.89
8.2.120.0140.00417.10
8.2.110.0110.00517.09
8.2.100.0170.00317.20
8.2.90.0150.00517.01
8.2.80.0190.00317.04
8.2.70.0150.00317.02
8.2.60.0180.00517.10
8.2.50.0140.00717.27
8.2.40.0250.00317.06
8.2.30.0160.01017.08
8.2.20.0230.00917.29
8.2.10.0290.00416.95
8.2.00.0240.00616.95

preferences:
27.71 ms | 688 KiB | 4 Q