admin/add_area.php

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<?php
require("../conndb.php");
mysql_Condb();
if($act=="insert")
{
	if(empty($_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");
		$areaname  = trim($_REQUEST['areaname']);
		$parentid  = intval($_REQUEST['parentid']);
		$areaorder = intval($_REQUEST['areaorder']);

		if(empty($areaorder)) {
			$sql = "SELECT MAX(areaorder) FROM area";
			$res=mysql_query($sql);
			$row = mysql_fetch_row($res);
			$maxorder = $row[0];
			$areaorder = $maxorder + 1;
		}
		$sql = "INSERT INTO {$table}area (areaname,parentid,areaorder) VALUES ('$areaname','$parentid','$areaorder')";
	$res=mysql_query($sql);
	header("location:area.php");
}





?>
<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();
		return false;
	}
	if(document.form.areaname.value.length>50 || document.form.areaname.value.length<2){
		alert('名称请控制在2~30字之间!');
		document.form.areaname.focus();
		return false;
	}
}
</script>
</head>
<body>
<table width=100% border=0 align=center cellpadding=3 cellspacing=1 class=tableborder>
<tr class=header>
  <td height=25> 添加地区</td>
</tr>
<tr><td bgcolor=#FFFFFF align=center>
<table width=100% align=center border=0 cellspacing=1 cellpadding=4>
<form method=post onSubmit="return chkform()" name="form" action="?act=insert">
<tr>
  <td width="39%" align="right">地区名称： </td>
  <td width="61%"> <input name="areaname" type="text" id="areaname" value="" size="30"> *</td>
</tr>