run code in 200+ php & hhvm versions
Bugs & Features
<?php $feed = new StdClass; $feed->name = 'foo'; $feed->url = 'bar'; $html = <<<HTML onclick="javascript:modify_feed('{$feed->name{','{$feed->url}');" HTML; echo $html;

Here you find the average performance (time & memory) of each version. A greyed 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)