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<?PHPfunction listChilds($id, $depth=1) {	$sql="SELECT * FROM navigation WHERE parentid = " . $id . " ORDER BY rank;";	$qry=mysql_query($sql);		while($list = mysql_fetch_assoc($qry)) {		$arrayChild=array( array(			'depth'=>$depth,			'id'=>$list['id'],			'name'=>$list['name'],			'parentid'=>$list['parentid'],			'contentid'=>$list['contentid'],			'rank'=>$list['rank'],			'type'=>$list['type'] ));		if(hasChild($list['id'])) {			$depth=$depth+1;			$arrayChild[count($arrayChild)]+=listChilds($list['id'], $depth);			$depth=$depth-1;		}	}	return $arrayChild;}function mainList() {	$sql="SELECT * FROM navigation WHERE parentid = -1 ORDER BY rank;";	$qry=mysql_query($sql);	$depth=0;	while($list = mysql_fetch_assoc($qry)) {		$array=array( array(			'depth'=>$depth,			'id'=>$list['id'],			'name'=>$list['name'],			'parentid'=>$list['parentid'],			'contentid'=>$list['contentid'],			'rank'=>$list['rank'],			'type'=>$list['type'] ));		if(hasChild($list['id'])) {			$array+=listChilds($list['id']);		}	}	return $array;}?>