3v4l.org

run code in 300+ PHP versions simultaneously
<?php old_function Sum $a,$b,$c ( return($a+$b+$c); ); echo Sum(1, 2, 3);

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)
5.0.00.0060.00216.80
4.4.90.0050.00016.80
4.3.110.0020.00216.80

preferences:
141.08 ms | 993 KiB | 7 Q