Cacher is the code snippet organizer for pro developers

<?
function mb_substr_replace($original, $replacement, $position, $length)
{
 $startString = mb_substr($original, 0, $position, "UTF-8");
 $endString = mb_substr($original, $position + $length, mb_strlen($original), "UTF-8");

 $out = $startString . $replacement . $endString;

 return $out;
}