在做添加时写是否已经有该文件

  $_sql1 = "SELECT * FROM tb_user where userName = {$_clean['userName']} ";
$_result1 = _query($_sql1);
$_rows1 = _fetch_array($_result1);
if ( $_rows1> ){
echo "<script>alert('帐号已经存在,请更换账号');location.href='user.php'</script>";
exit();
}
else{
$_sqlAdd = "INSERT INTO tb_user (addDates,addIP,userName,userEmail,u

排序总动添加

$_sql1 = "SELECT * FROM tb_GoodsInfo";
$_result1 = _query($_sql1);
$_rows1 = _num_rows($_result1);
$_sort = $_rows1 + ;

一个增删改查

<?php
require 'includes/common.inc.php';
session_start();
if ( !isset($_SESSION['username']) ) {
_location('请先登录!','login.php');
}
define('SCRIPT','picadvert'); if ( @$_GET['action'] == 'add' ) {
$_clean = array();
$_clean['weizi'] = _check($_POST['weizi']);
$_clean['picName'] = _check($_POST['picName']);
$_clean['picImg'] = _check($_POST['picImg']);
$_clean['picLink'] = _check($_POST['picLink']);
$_clean['isFreeze'] = _check($_POST['isFreeze']);
$_sqlAdd = "INSERT INTO tb_picadvert VALUES (null,'{$_clean['weizi']}',0,'{$_clean['picName']}','{$_clean['picImg']}','{$_clean['picLink']}','{$_clean['isFreeze']}')";
_query($_sqlAdd); if ( _affected_rows() == ) {
_close();
_alert_back('添加成功!');
} else {
_close();
_alert_back('添加失败!');
}
}
?>
<?php global $_pagesize,$_pagenum; if ( !isset($_GET['weizi'])) {
_page('SELECT id FROM tb_picadvert',);
$_sql = "SELECT * FROM tb_picadvert LIMIT $_pagenum,$_pagesize";
} elseif ( @$_GET['weizi'] == ) {
_page('SELECT id FROM tb_picadvert WHERE weizi = 0',);
$_sql = "SELECT * FROM tb_picadvert WHERE weizi = 0 LIMIT $_pagenum,$_pagesize";
} elseif ( @$_GET['weizi'] == ) {
_page('SELECT id FROM tb_picadvert WHERE weizi = 1',);
$_sql = "SELECT * FROM tb_picadvert WHERE weizi = 1 LIMIT $_pagenum,$_pagesize";
} elseif ( @$_GET['weizi'] == ) {
_page('SELECT id FROM tb_picadvert WHERE weizi = 2',);
$_sql = "SELECT * FROM tb_picadvert WHERE weizi = 2 LIMIT $_pagenum,$_pagesize";
} elseif ( @$_GET['weizi'] == ) {
_page('SELECT id FROM tb_picadvert WHERE weizi = 3',);
$_sql = "SELECT * FROM tb_picadvert WHERE weizi = 3 LIMIT $_pagenum,$_pagesize";
} elseif ( @$_GET['weizi'] == ) {
_page('SELECT id FROM tb_picadvert WHERE weizi = 4',);
$_sql = "SELECT * FROM tb_picadvert WHERE weizi = 4 LIMIT $_pagenum,$_pagesize";
} elseif ( @$_GET['weizi'] == ) {
_page('SELECT id FROM tb_picadvert WHERE weizi = 5',);
$_sql = "SELECT * FROM tb_picadvert WHERE weizi = 5 LIMIT $_pagenum,$_pagesize";
} elseif ( @$_GET['weizi'] == ) {
_page('SELECT id FROM tb_picadvert WHERE weizi = 6',);
$_sql = "SELECT * FROM tb_picadvert WHERE weizi = 6 LIMIT $_pagenum,$_pagesize";
} elseif ( @$_GET['weizi'] == ) {
_page('SELECT id FROM tb_picadvert WHERE weizi = 7',);
$_sql = "SELECT * FROM tb_picadvert WHERE weizi = 7 LIMIT $_pagenum,$_pagesize";
} elseif ( @$_GET['weizi'] == ) {
_page('SELECT id FROM tb_picadvert WHERE weizi = 8',);
$_sql = "SELECT * FROM tb_picadvert WHERE weizi = 8 LIMIT $_pagenum,$_pagesize";
} elseif ( @$_GET['weizi'] == ) {
_page('SELECT id FROM tb_picadvert WHERE weizi = 9',);
$_sql = "SELECT * FROM tb_picadvert WHERE weizi = 9 LIMIT $_pagenum,$_pagesize";
} elseif ( @$_GET['weizi'] == ) {
_page('SELECT id FROM tb_picadvert WHERE weizi = 10',);
$_sql = "SELECT * FROM tb_picadvert WHERE weizi = 10 LIMIT $_pagenum,$_pagesize";
}
elseif ( @$_GET['weizi'] == ) {
_page('SELECT id FROM tb_picadvert WHERE weizi = 11',);
$_sql = "SELECT * FROM tb_picadvert WHERE weizi = 11 LIMIT $_pagenum,$_pagesize";
}
$_result = _query($_sql);
if ( isset($_GET['id']) && $_GET['action'] = 'delete' ) {
$_sql1 = "DELETE FROM tb_picadvert WHERE id = '{$_GET['id']}'";
_query($_sql1); if ( _affected_rows() == ) {
_close();
_alert_back('删除成功!');
} else {
_close();
_alert_back('删除失败!');
}
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
<!--
body {
margin-left: 0px;
margin-top: 0px;
margin-right: 0px;
margin-bottom: 0px;
background-color: #F8F9FA;
}
-->
</style>
<link href="images/skin.css" rel="stylesheet" type="text/css" />
</head>
<script>
function test()
{
if(document.admin.weizi.value=='')
{
alert('请选择位置');
return false;
}
if(document.admin.picName.value=='')
{
alert('请输入广告名称');
return false;
}
}
</script>
<body>
<table width="100%" border="" cellpadding="" cellspacing="">
<tr>
<td width="" height="" valign="top" background="images/mail_leftbg.gif"><img src="data:images/left-top-right.gif" width="" height="" /></td>
<td valign="top" background="images/content-bg.gif"><table width="100%" height="" border="" cellpadding="" cellspacing="" class="left_topbg" id="table2">
<tr>
<td height=""><div class="titlebt">广告管理</div></td>
</tr>
</table></td>
<td width="" valign="top" background="images/mail_rightbg.gif"><img src="data:images/nav-right-bg.gif" width="" height="" /></td>
</tr>
<tr>
<td height="" valign="middle" background="images/mail_leftbg.gif">&nbsp;</td>
<td valign="top" bgcolor="#F7F8F9"><div>
<!---->
<table width="98%" border="" align="center" cellpadding="" cellspacing="">
<tr>
<td height=""><div style="font-size:12px;line-height:20px;">查看:
<a href='picadvert.php'>全部</a>
<a href="?weizi=0">会员后台</a> |
<a href="?weizi=1">网站首页轮播广告</a> |
<a href="?weizi=2">点就赚首页轮播广告 </a> |
<a href="?weizi=3">疯狂秒杀轮播广告</a>|
<a href="?weizi=4">疯狂秒杀左下部广告</a>|
<a href="?weizi=5">来就赚首页轮播广告</a>|
<a href="?weizi=6">易币商城轮播广告</a>|
<a href="?weizi=7">易币商城左下部广告</a>|
<a href="?weizi=8">特惠区轮播广告</a>|
<a href="?weizi=9">特惠区左下部广告</a>|
<a href="?weizi=10">快捷导航</a>|
<a href="?weizi=11">易得App首页轮播</a>
<div style="border-right:50" align="center"> </div>
</div>
</td>
</tr>
<tr>
<td><table width="100%" height="" border:"solid 2px #CCC" cellpadding="" cellspacing="" class="nowtable">
<tr align="center" >
<td bgcolor="#F2F2F2" class="left_txt2"> 用户ID</td>
<td bgcolor="#F2F2F2" class="left_txt2"> 广告位置</td>
<td width="15%" bgcolor="#F2F2F2" class="left_txt2" >广告名称</td>
<td width="14%" bgcolor="#F2F2F2" class="left_txt2">连接地址</td>
<td width="17%" bgcolor="#F2F2F2" class="left_txt2" >图片</td>
<td bgcolor="#F2F2F2" class="left_txt2">状态</td>
<td bgcolor="#F2F2F2" class="left_txt2" >操作</td>
</tr>
<form name="admin" id="admin" method="POST" action="?action=add" onsubmit="return test();">
<tr align="center" bgcolor="#F2F2F2" class="left_txt2">
<td width="15%" class="left_txt2" ></td>
<td width="15%" class="left_txt2" >
<select id="weizi" name="weizi" >
<option value="">请选择广告位置</option>
<option value="">会员后台</option>
<option value="">网站首页轮播广告</option>
<option value="">点就赚首页轮播广告 </option>
<option value="">疯狂秒杀轮播广告</option>
<option value="">疯狂秒杀左下部广告</option>
<option value="">悬赏令左下部广告</option>
<option value="">易币商城轮播广告</option>
<option value="">易币商城左下部广告</option>
<option value="">特惠区轮播广告</option>
<option value="">特惠区左下部广告</option>
<option value="">快捷导航</option>
</select></td>
<td class="left_txt2"><input name="picName" type="text" id="picName" size="" /></td>
<td class="left_txt2"><input name="picImg" type="text" id="picImg" size="" /></td>
<td class="left_txt2"><input type="text" name="picLink" id="picLink" size="" />
<input type="button" value="上传" onClick="window.open('../admin/upload.php?formname=admin&editname=adImage','','status=no,scrollbars=no,top=35,width=650,height=350')"/></td>
<td width="9%" class="left_txt2"><select id="isFreeze" name="isFreeze">
<option value="">显示</option>
<option value="">隐藏</option>
</select></td>
<td width="15%" class="left_txt2"><input type="submit" name="button" id="button" value="添加" /></td>
</tr>
</form>
<?php
$_row = _num_rows($_result);
if ( $_row > ) {
while ( $_rows = _fetch_array($_result) ) {
$_html = array();
$_html['id'] = $_rows['id'];
$_html['weizi'] = $_rows['weizi'];
$_html['picName'] = $_rows['picName'];
$_html['picImg'] = $_rows['picImg'];
$_html['picLink'] = $_rows['picLink']; switch ( $_rows['userid'] ) {
case :
$_html['userid'] = '易得网发布';
break;
default:
$_html['userid'] = $_rows['userid'];
} switch ( $_rows['weizi'] ) {
case :
$_html['weizi'] = '会员后台';
break;
case :
$_html['weizi'] = '网站首页轮播广告';
break;
case :
$_html['weizi'] = '点就赚首页轮播广告';
break;
case :
$_html['weizi'] = '疯狂秒杀轮播广告';
break;
case :
$_html['weizi'] = '疯狂秒杀左下部广告';
break;
case :
$_html['weizi'] = '来就赚首页轮播广告';
break;
case :
$_html['weizi'] = '易币商城轮播广告';
break;
case :
$_html['weizi'] = '易币商城左下部广告';
break;
case :
$_html['weizi'] = '特惠区轮播广告';
break;
case :
$_html['weizi'] = '特惠区左下部广告';
break;
case :
$_html['weizi'] = '快捷导航';
break;
case :
$_html['weizi'] = '易得网Android App首页轮播';
break;
} switch ( $_rows['isFreeze'] ) {
case :
$_html['isFreeze'] = '隐藏';
break;
case :
$_html['isFreeze'] = '显示';
break;
}
$_html = _html($_html); ?>
<tr class="left_txt2" align="center" >
<td bgcolor="#F2F2F2" class="left_txt2"><?php echo $_html['userid']?></td>
<td bgcolor="#F2F2F2" class="left_txt2"><?php echo $_html['weizi']?></td>
<td bgcolor="#F2F2F2" class="left_txt2"><?php echo $_html['picName']?></td>
<td bgcolor="#F2F2F2" class="left_txt2"><?php echo $_html['picImg']?></td>
<td bgcolor="#F2F2F2" class="left_txt2"><?php echo $_html['picLink']?></td>
<td bgcolor="#F2F2F2" class="left_txt2"><?php echo $_html['isFreeze']?></td>
<td width="15%" bgcolor="#F2F2F2" class="left_txt2">
<a href='?action=delete&id=<?php echo $_html['id']?>'>删除</a> |
<a href='picadvert_edit.php?id=<?php echo $_html['id']?>'>修改</a></td>
</tr>
<?php
}
_free_result($_result);
_close();
?>
<?php
} else {
echo "<tr><td colspan='7'><div style='text-align:center;color:red;font-size:16px;'>暂无广告位广告</div></td></tr>";
}
?>
</table></td>
</tr>
</table>
<?php
_paging();
?>
</div></td>
<td background="images/mail_rightbg.gif">&nbsp;</td>
</tr>
<tr>
<td valign="middle" background="images/mail_leftbg.gif"><img src="data:images/buttom_left2.gif" width="" height="" /></td>
<td height="" valign="top" background="images/buttom_bgs.gif"><img src="data:images/buttom_bgs.gif" width="" height="" /></td>
<td background="images/mail_rightbg.gif"><img src="data:images/buttom_right2.gif" width="" height="" /></td>
</tr>
</table>
</body>
</html>

三联动

/数据库mysql

-- 数据库: `student`
-- -- -------------------------------------------------------- --
-- 表的结构 `student`
-- CREATE TABLE `student` (
`id` int() NOT NULL auto_increment,
`name` varchar() collate utf8_unicode_ci NOT NULL,
`dept` varchar() collate utf8_unicode_ci NOT NULL,
`class` varchar() collate utf8_unicode_ci NOT NULL,
`sex` varchar() collate utf8_unicode_ci NOT NULL,
`dept_id` int() NOT NULL,
`class_id` int() NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT= ; --
-- 导出表中的数据 `student`
-- INSERT INTO `student` (`id`, `name`, `dept`, `class`, `sex`, `dept_id`, `class_id`) VALUES
(, '计算机名字', '计算机工程系', '计061', '男', , ),
(, '教计名字', '计算机工程系', '教技061', '男', , ),
(, '管理名字', '管理系', '管理061', '女', , ),
(, '机械名字', '机械工程系', '自动化061', '男', , ); ///以下是代码 <?php
$link=mysql_connect("localhost","root","") or die("数据库服务器连接错误".mysql_error());
mysql_select_db("student",$link) or die("数据库访问错误".mysql_error());
mysql_query("set character set gb2312");
mysql_query("set names gb2312");
?>
<html>
<head>
<title>下拉框连动</title>
</head>
<body>
<script language="JavaScript"> //二级菜单数组
var subcat = new Array();
<?php
$i=;
$sql="select * from student";
$query=mysql_query($sql,$link);
while($arr=mysql_fetch_array($query))
{
echo "subcat[".$i++."] = new Array('".$arr["dept_id"]."','".$arr["class"]."','".$arr["class_id"]."');\n";
}
?> //三级菜单数组
var subcat2 = new Array();
<?php
$i=;
$sql="select * from student";
$query=mysql_query($sql,$link);
while($arr=mysql_fetch_array($query))
{
echo "subcat2[".$i++."] = new Array('".$arr["class_id"]."','".$arr["class"]."','".$arr["name"]."');\n";
}
?>
function changeselect1(locationid)
{
document.form1.s2.length = ;
document.form1.s2.options[] = new Option('22请选择22','');
for (i=; i<subcat.length; i++)
{
if (subcat[i][] == locationid)
{
document.form1.s2.options[document.form1.s2.length] = new Option(subcat[i][], subcat[i][]);
}
}
}
function changeselect2(locationid)
{
document.form1.s3.length = ;
document.form1.s3.options[] = new Option('33请选择33','');
for (i=; i<subcat2.length; i++)
{
if (subcat2[i][] == locationid)
{
document.form1.s3.options[document.form1.s3.length] = new Option(subcat2[i][], subcat2[i][]);
}
}
} </script>三级联动演示:<BR> <form name="form1"> <select name="s1" onChange="changeselect1(this.value)">
<option>--请选择--</option> <option value=>计算机工程系</option>
<option value=>管理系</option>
<option value=>机械工程系</option>
</select> <select name="s2" onChange="changeselect2(this.value)">
<option>--请选择--</option>
</select> <select name="s3">
<option>--请选择--</option>
</select>
</form>
</body>
</html>

垃圾

$list->select("select * from tb_user where realName like ‘%$realName%’");

<td width="32%" height="" bgcolor="#f2f2f2" class="left_txt"><iframe
src="uploadPicsp.php" frameborder="" width="" height=""></iframe></td>
上传 echo "<span style='color:red'>冻结</span>"; <td width=""><?php echo date("Y-m-d h:i:s",$row["addtime"]);?></td> <?php
switch ($row["tradingBao"])
{
case "":
echo "不支持";
break;
case "":
echo "支持";
break;
}
?> <option value="" <?php if($isFreeze==) echo "selected";?>>冻结</option>
<option value="" <?php if($isFreeze==) echo "selected";?>>解冻</option> if($regPwd!="")
{
$regPwd=($regPwd);
$isok=$db->sql("update tb_user set regPwd='$regPwd' where id =$id");
if($isok==)
{
}
else
{
echo "<script>alert('修改失败');location.href='user.php'</script>";
exit;
}
} $list->select("select * from tb_user where realName like ‘%$realName%’"); <td width="32%" height="" bgcolor="#f2f2f2" class="left_txt"><iframe
src="uploadPicsp.php" frameborder="" width="" height=""></iframe></td>
上传 echo "<span style='color:red'>冻结</span>"; <td width=""><?php echo date("Y-m-d h:i:s",$row["addtime"]);?></td> <?php
switch ($row["tradingBao"])
{
case "":
echo "不支持";
break;
case "":
echo "支持";
break;
}
?> <option value="" <?php if($isFreeze==) echo "selected";?>>冻结</option>
<option value="" <?php if($isFreeze==) echo "selected";?>>解冻</option> if($regPwd!="")
{
$regPwd=($regPwd);
$isok=$db->sql("update tb_user set regPwd='$regPwd' where id =$id");
if($isok==)
{
}
else
{
echo "<script>alert('修改失败');location.href='user.php'</script>";
exit;
}
}

笔记

echo ,print_常用的输出方式有:echo、print、print_r、var_dump、var_exprot等;echo和print常用来输出字符串;查看数组常用print_r、var_dump、var_exprot;r()

<?php
include("conn/conn.php");
if(trim($_POST[username])!= "" and trim($_POST[password])!= "" and trim($_POST[tel])!=""){
$pwd = md5($_POST[password]);
$sql = "insert into tb_user(username,password,address,explains)values('".$_POST[username]."','".$pwd."','".$_POST[address]."','".$_POST[tel]."')";
$result = mysql_query($sql,$conn);
if($result){
echo "<font color='red'>注册成功。</font>";
}else{
echo "<font color='green'>注册失败!</font>";
}
}else{
echo "请认真填写用户名和密码!";
}
?>

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