3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace \; class Another{} namespace My\Full\Classname; 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)
5.4.20.0150.04211.97
5.4.10.0140.04111.97
5.4.00.0240.06011.46
5.3.120.0170.04512.66
5.3.110.0180.04812.66
5.3.100.0180.05512.12
5.3.90.0180.05112.08
5.3.80.0150.04412.07
5.3.70.0150.04412.07
5.3.60.0260.05312.06
5.3.50.0150.04312.00
5.3.40.0170.04212.00
5.3.30.0170.04011.95
5.3.20.0280.05211.73
5.3.10.0160.04811.69
5.3.00.0130.04311.67

preferences:
143.03 ms | 1394 KiB | 7 Q