3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = {"role" : "admin" , "name" : "ammar"}; print_r($arr);

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)
7.1.70.0070.00717.04

preferences:
138.4 ms | 1394 KiB | 7 Q