while($price = mysql_fetch_array($result)){
if(array_key_exists($price['pricing_id'],$r)){
		// ID exists in the DB and in the query string
		// Update in DB??
		unset($r[$price['pricing_id']); // remove this from the query string array
	}else{
		// ID exists in the DB, but NOT the query string
		// Delete from DB??
	}

}
foreach($r as $k => $v){
// These exist in the query string, but NOT the DB
// Insert into DB??
}