3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(1,2,3); $string = current($a); $i = 0; while(next($a) && strlen($string.current($a)) < 3){ $string .= current($a); } echo $string;
based on mRR0d
Output for 4.3.0 - 7.1.0
12