3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $code = "564646773"; $len = strlen($code); $i = 0; $sum = 0; do { $r = $i+1; $sum += $code[$i]*$r; $i++; }while($i < $len); echo (string)($sum%11); ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
10