3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $output = ''; $separator = ', '; if($i > 0) { $output .= $separator; }
based on 5irHE
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: i in /in/gJsoH on line 6
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: i in /in/gJsoH on line 6