3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $q ="myzig@sermon.net +="; var_dump(preg_replace("/([^\w\d ])/ui", '\\\\' . '$1', $q));
Output for 4.3.0 - 7.1.0
string(23) "myzig\@sermon\.net \+\="