stri_replace

<?	if (!function_exists(stri_replace)) {	  	function stri_replace($findme,$replace,$string) {	  	  $lstring = strtolower($string);	  	  $lfind   = strtolower($findme);	  	  if (($offset = strpos($lstring,$lfind)) !== false) { 	  	    return str_replace(substr($string,$offset,strlen($findme)),$replace, $string);  	    }  	    return $string;  	  }  	}?>