run code in 200+ php & hhvm versions
Bugs & Features
<?php $agent = "Mozilla/5.0 (iPad; CPU OS 10_3_2 like Mac OS X) AppleWebKit/603.1.30 (KHTML, like Gecko) CriOS/59.0.3071.102 Mobile/14F89 Safari/602.1"; echo 'v3.6.5 '; preg_match('|CriOS[/ ]([0-9.]+)|', $agent, $version); var_dump($version); list ($majorVersion, $minorVersion) = explode('.', $version[1]); echo 'v3.7.3 '; preg_match('/Chrome[\/ ]([0-9.]+)|CrMo[\/ ]([0-9.]+)|CriOS[\/ ]([0-9.]+)/i', $agent, $version); var_dump($version); list ($majorVersion, $minorVersion) = explode('.', $version[1]);

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)