- chr: documentation ( source)
- explode: documentation ( source)
<?php
$argv[1]="uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuug uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu";
$s=substr_count;for($i=0;$c=explode(' ',$argv[1])[$i++];)echo chr($s($c,u)+2*$s($c,g));