- str_replace: documentation ( source)
- explode: documentation ( source)
- strrev: documentation ( source)
<?php
$h = explode("|", strrev($b));
$d = explode("*", $h[0]);
$b = $h[1];
for($i=0;$i<sizeof($d);$i++)
{
$b = str_replace($i, $d[$i], $b);
}
echo $b;