3v4l.org

run code in 300+ PHP versions simultaneously
<?php function waa($a) { waa($a.$a) } waa("waaaa");

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)
5.4.00.0120.04411.50
5.3.100.0110.04512.12
5.3.90.0120.04512.10
5.3.80.0120.04212.09
5.3.70.0120.04212.09
5.3.60.0090.04412.08
5.3.50.0100.04312.02
5.3.40.0120.04112.02
5.3.30.0110.04111.98
5.3.20.0100.04311.77
5.3.10.0110.04211.73
5.3.00.0180.05811.71

preferences:
145.46 ms | 1399 KiB | 7 Q