3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $userSeparator = ''; $selfSeparator = '+'; $separator = (null !== $userSeparator) ? $userSeparator : ((null !== $selfSeparator) ? $selfSeparator : '-'); echo $separator;
based on PRAru
Output for 4.3.0 - 7.2.6