Miscellany

//my id's hierarchy for the example: 0 -> 71 -> 78 -> 80function parent_id($cat_id) {	$db = new ps_DB;	$q = "SELECT * FROM #__{vm}_category_xref ";	$q .= "WHERE #__{vm}_category_xref.category_child_id='$cat_id' ";		$db->setQuery($q);	$db->query();		return $db->f("category_parent_id");}echo parent(80); //returns 78 -> OK!function niveau($cat_id,$A){	echo "$cat_id($A) -> ";	if(parent_id($cat_id)==0) {		return $A;	} else {		niveau(parent_id($cat_id),$A+1);		}}echo niveau(80,0); //returns '80(0) -> 78(1) -> 71(2) ->' but i'd like only the '2'