Viên ngọc phương Đông

<?php 
/**
 * process page ordering
 * @version 0.9
 * @author Robert Urquhart <programmer@activatedesign.co.nz>
 * @package WEP-CMS
 * @todo to bring this up to version 0.10 use {page} and {page}->load sub_pages()
 *	instead of build_page_tree()
 */
require_once $_SERVER['DOCUMENT_ROOT'].'/admin/scripts-includes/universal.php';
session_start();
$conn_ID = connect_to_db();
//print_r($_POST);
if(!is_array($_POST['page']))
{
	die('Invalid page array');
	exit;
}

$message = '';
$pages = array();
$tree = build_page_tree();
//print_r($tree);
assign_positions($tree); //recursive function

function assign_positions($tree = array())
{
	global $pages, $message;
	$sort = array();
	//$i = 0; // on first run forcing different numbers
	foreach($tree as $p)
	{
		$pid = $p['page_id'];
		if(isset($_POST['page']["$pid"]))
		{
			// validate submitted position
			if(!$pos = is_numeric_id($_POST['page']["$pid"],0))
			{
				$message .= "Invalid value ".$_POST["$pid"]." for page $pid (".$p['name']."), this page has been placed at the top of the order.<br />";
				$pos = -1000;
			}
			
			//subtree			
			if(!empty($p['branches']))
			{
				assign_positions($p['branches']); //recursive
			}
		} //end isset
		else
		{
			$message .= "Value not supplied for page $id (".$p['name']."), this page has been placed at the top of the order.<br />";
			$pos = -1000;
		}
		
		$sort["p$pid"] = $pos;//+$i; //prefix with p because array_merge refuses to acknowledge strings consisting of solely numeric characters no matter how firmly defined.
		//$i++; // on first run forcing different numbers
		
	} //end foreach
	//echo 'unsorted ';print_r($sort);
	$sort = order_for_db($sort); //just this branch/tier
	//echo 'sorted '; print_r($sort);
	$pages = array_merge($pages,$sort);
	//echo 'pages '; print_r($pages);
}

//echo 'pages final '; print_r($pages); exit;
//*
foreach($pages as $id => $pos){
	$pid = ltrim($id,'p');
	mysql_query("update page_data set position = '$pos' where page_id = '$pid'");
}
//*/

$message .= "Positions updated.";	
getout($message);
exit;
?>