admin/area.php

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<?php
require("../conndb.php");
mysql_Condb();
//require("../function.php");
//删除
if($act=="") $act="list";
if($act=="delete")
{
		$areaid = intval($_REQUEST['areaid']);
		$sql = "DELETE FROM area WHERE areaid='$areaid'";
		$res=mysql_query($sql);
		header("location:area.php");

}
//修改地区
if($act=="update")
{
		if(empty($_REQUEST['areaname']))exit("请填写地区名称");
		$len = strlen($_REQUEST['areaname']);
		if($len < 2 || $len > 30)exit("地区名必须在2个至30个字符之间");
		$sql = "UPDATE area SET areaname='$areaname',
		parentid='$parentid',
		areaorder='$areaorder'
		WHERE areaid = '$areaid'";
		$res = mysql_query($sql);
		header("location:area.php");
}
if($act=="list")
{
//显示列表数据
$sql = "select a.areaid, a.areaname, a.areaorder as catorder,b.areaid as childid, b.areaname as childname, b.areaorder as chiorder from area as a left join area as b on b.parentid = a.areaid where a.parentid = '$area' order by catorder,a.areaid,chiorder asC";
$res=mysql_query($sql);

            $arr = array();
 while ($row1 = mysql_fetch_assoc($res)) {
                $arr[] = $row1;
            }
//print_R($arr);
$areas = array();
			foreach ($arr as $row) {
				$areas[$row['areaid']]['areaid']   = $row['areaid'];
				$areas[$row['areaid']]['areaname'] = $row['areaname'];

				if($row['childid'] != NULL) {
					$areas[$row['areaid']]['children'][$row['childid']]['id']   = $row['childid'];
					$areas[$row['areaid']]['children'][$row['childid']]['name'] = $row['childname'];

				}
			}
}
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gbk">
<link href="images/style.css" rel=stylesheet type=text/css>
<script language=javascript>
function chkform(){
	if(document.form.areaname.value==""){
		alert('请输入名称！');
		document.form.areaname.focus();