run code in 200+ php & hhvm versions
Bugs & Features
<?php $t = "u: alpha p: p_alpha u: beta p: p_beta u: gamma p: p_gamma u: delta p: p_delta "; preg_grep("/^u: *alpha\np: *(.*?)\n/", $credentials)
based on U7Mfj

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).
Note: hhvm uses a JIT which only kicks in after a few runs. Since we run scripts only once, hhvm always runs slower.

VersionSystem time (s)User time (s)Memory (MiB)