3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php define('SUN',0); define('MON',1); define('TUE',2); define('WED',3); $weekStart = SUN; for($i = 0 + $weekStart; $i<=7 ; $i++){ echo $i%7 . "\n"; }
based on 06gHp
Output for 4.3.0 - 7.1.0
0 1 2 3 4 5 6 0