3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Human { } class Animal { } namespace Interfaces { interface FeelingsInterface { } } class Person extends Human implements Interfaces\FeelingsInterface { } class Dog extends Animal implements Interfaces\FeelingsInterface { } $me = new Person(); $dog = new Dog(); var_dump(class_implements($me)); var_dump(class_implements($dog));

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)
5.4.230.0110.04412.37
5.4.220.0110.04312.38
5.4.210.0120.04312.37
5.4.200.0130.04512.37
5.4.190.0100.04312.37
5.4.180.0090.04312.37
5.4.170.0090.04112.38
5.4.160.0120.04012.38
5.4.150.0110.04012.37
5.4.140.0110.04212.05
5.4.130.0110.03912.04
5.4.120.0060.04212.00
5.4.110.0110.03912.00
5.4.100.0090.04312.00
5.4.90.0100.04411.99
5.4.80.0110.04311.99
5.4.70.0090.04211.99
5.4.60.0110.04111.99
5.4.50.0160.05711.99
5.4.40.0120.04211.98
5.4.30.0130.04311.97
5.4.20.0110.04211.97
5.4.10.0100.04211.97
5.4.00.0070.04611.47
5.3.280.0110.04812.71
5.3.270.0150.07112.72
5.3.260.0110.04212.72
5.3.250.0100.04212.72
5.3.240.0120.04212.72
5.3.230.0170.05112.71
5.3.220.0120.04612.68
5.3.210.0130.04712.68
5.3.200.0250.07012.68
5.3.190.0130.04412.68
5.3.180.0130.04312.68
5.3.170.0270.06612.67
5.3.160.0090.05112.67
5.3.150.0140.05312.67
5.3.140.0210.06212.66
5.3.130.0220.05712.66
5.3.120.0110.04612.66
5.3.110.0110.04412.66
5.3.100.0130.03912.12
5.3.90.0110.03912.09
5.3.80.0100.04112.08
5.3.70.0120.04012.08
5.3.60.0100.04312.07
5.3.50.0100.04312.01
5.3.40.0130.04212.00
5.3.30.0110.03711.96
5.3.20.0130.04711.74
5.3.10.0100.04311.70
5.3.00.0130.04511.68

preferences:
142.74 ms | 1394 KiB | 7 Q