3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace My\Full\Classname; class Another{} namespace Waa; class Another{} use My\Full\Classname as Another; $obj = new Another; // instantiates object of class My\Full\Classname $a = 'Another'; $obj = new $a; // instantiates object of class Another ?>

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)
5.4.20.0210.05311.97
5.4.10.0180.04211.96
5.4.00.0190.04311.46
5.3.120.0220.04312.66
5.3.110.0170.04612.66
5.3.100.0150.04712.12
5.3.90.0240.03912.09
5.3.80.0170.04712.08
5.3.70.0160.04812.08
5.3.60.0250.06712.06
5.3.50.0130.04812.01
5.3.40.0180.04612.02
5.3.30.0190.04311.97
5.3.20.0180.04511.76
5.3.10.0190.05311.72
5.3.00.0130.04711.70

preferences:
168.04 ms | 1394 KiB | 7 Q