3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); class OriginalClass { public function adopt(string $name): string { return $name; } } class XClass extends OriginalClass { public function adopt(string $name) { return $name; } } print (new XClass())->adopt('foo');

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)
7.4.50.0120.00915.93
7.4.40.0080.01416.19
7.4.30.0130.01016.19
7.4.20.0170.01316.07
7.4.10.0090.00916.13
7.4.00.0060.01216.51
7.3.170.0060.01016.37
7.3.160.0030.01416.17
7.3.150.0160.00616.21
7.3.140.0090.00916.11
7.3.130.0110.00816.13
7.3.120.0100.00716.12
7.3.110.0110.00716.14
7.3.100.0110.00715.92
7.3.90.0090.00916.45
7.3.80.0060.01016.08
7.3.70.0100.00716.01
7.3.60.0070.01016.17
7.3.50.0130.00316.11
7.3.40.0060.01516.09
7.3.30.0030.01616.09
7.3.20.0100.01016.37
7.3.10.0100.01016.20
7.3.00.0140.00416.04
7.2.290.0140.01016.35
7.2.280.0070.01316.27
7.2.270.0100.01316.15
7.2.260.0070.01316.61
7.2.250.0100.00716.30
7.2.240.0100.01216.35
7.2.230.0070.01016.24
7.2.220.0060.01216.51
7.2.210.0110.00716.13
7.2.200.0120.01216.43
7.2.190.0150.00416.16
7.2.180.0130.00416.06
7.2.170.0070.01116.36
7.2.160.0140.00716.43
7.2.150.0070.01316.50
7.2.140.0100.00716.27
7.2.130.0090.01516.13
7.2.120.0100.01416.41
7.2.110.0110.01116.34
7.2.100.0100.00716.26
7.2.90.0130.00716.37
7.2.80.0060.01216.25
7.2.70.0030.01316.25
7.2.60.0030.01316.34
7.2.50.0120.00616.09
7.2.40.0100.00916.36
7.2.30.0070.01116.31
7.2.20.0090.00916.36
7.2.10.0130.00616.21
7.2.00.0150.00616.38

preferences:
149.65 ms | 997 KiB | 7 Q