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php 10.1总

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>0 ){        echo "<script>alert(‘帐号已经存在,请更换账号‘);location.href=http://www.mamicode.com/‘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 + 1;

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() == 1 ) {        _close();        _alert_back(添加成功!);    } else {        _close();        _alert_back(添加失败!);    }}?><?phpglobal $_pagesize,$_pagenum;        if ( !isset($_GET[weizi])) {        _page(SELECT id FROM tb_picadvert,10);        $_sql = "SELECT * FROM tb_picadvert LIMIT $_pagenum,$_pagesize";    } elseif ( @$_GET[weizi] == 0 ) {        _page(SELECT id FROM tb_picadvert WHERE weizi = 0,10);        $_sql = "SELECT * FROM tb_picadvert WHERE weizi = 0 LIMIT $_pagenum,$_pagesize";        } elseif ( @$_GET[weizi] == 1 ) {        _page(SELECT id FROM tb_picadvert WHERE weizi = 1,10);        $_sql = "SELECT * FROM tb_picadvert WHERE weizi = 1 LIMIT $_pagenum,$_pagesize";        } elseif ( @$_GET[weizi] == 2 ) {        _page(SELECT id FROM tb_picadvert WHERE weizi = 2,10);        $_sql = "SELECT * FROM tb_picadvert WHERE weizi = 2 LIMIT $_pagenum,$_pagesize";    } elseif ( @$_GET[weizi] == 3 ) {        _page(SELECT id FROM tb_picadvert WHERE weizi = 3,10);        $_sql = "SELECT * FROM tb_picadvert WHERE weizi = 3 LIMIT $_pagenum,$_pagesize";        } elseif ( @$_GET[weizi] == 4 ) {        _page(SELECT id FROM tb_picadvert WHERE weizi = 4,10);        $_sql = "SELECT * FROM tb_picadvert WHERE weizi = 4 LIMIT $_pagenum,$_pagesize";            } elseif ( @$_GET[weizi] == 5 ) {        _page(SELECT id FROM tb_picadvert WHERE weizi = 5,10);        $_sql = "SELECT * FROM tb_picadvert WHERE weizi = 5 LIMIT $_pagenum,$_pagesize";            } elseif ( @$_GET[weizi] == 6 ) {        _page(SELECT id FROM tb_picadvert WHERE weizi = 6,10);        $_sql = "SELECT * FROM tb_picadvert WHERE weizi = 6 LIMIT $_pagenum,$_pagesize";            } elseif ( @$_GET[weizi] == 7 ) {        _page(SELECT id FROM tb_picadvert WHERE weizi = 7,10);        $_sql = "SELECT * FROM tb_picadvert WHERE weizi = 7 LIMIT $_pagenum,$_pagesize";            } elseif ( @$_GET[weizi] == 8 ) {        _page(SELECT id FROM tb_picadvert WHERE weizi = 8,10);        $_sql = "SELECT * FROM tb_picadvert WHERE weizi = 8 LIMIT $_pagenum,$_pagesize";            } elseif ( @$_GET[weizi] == 9 ) {        _page(SELECT id FROM tb_picadvert WHERE weizi = 9,10);        $_sql = "SELECT * FROM tb_picadvert WHERE weizi = 9 LIMIT $_pagenum,$_pagesize";            } elseif ( @$_GET[weizi] == 10 ) {        _page(SELECT id FROM tb_picadvert WHERE weizi = 10,10);        $_sql = "SELECT * FROM tb_picadvert WHERE weizi = 10 LIMIT $_pagenum,$_pagesize";            }        elseif ( @$_GET[weizi] == 11 ) {        _page(SELECT id FROM tb_picadvert WHERE weizi = 11,10);        $_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() == 1 ) {            _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=http://www.mamicode.com/"images/skin.css" rel="stylesheet" type="text/css" /></head><script>function test(){    if(document.admin.weizi.value=http://www.mamicode.com/=‘‘)    {        alert(请选择位置);        return false;    }        if(document.admin.picName.value=http://www.mamicode.com/=‘‘)    {        alert(请输入广告名称);        return false;    }}</script><body><table width="100%" border="0" cellpadding="0" cellspacing="0">  <tr>    <td width="17" height="29" valign="top" background="images/mail_leftbg.gif"><img src=http://www.mamicode.com/"images/left-top-right.gif" width="17" height="29" /></td>    <td  valign="top" background="images/content-bg.gif"><table width="100%" height="31" border="0" cellpadding="0" cellspacing="0" class="left_topbg" id="table2">        <tr>          <td height="31"><div class="titlebt">广告管理</div></td>        </tr>      </table></td>    <td width="16" valign="top" background="images/mail_rightbg.gif"><img src=http://www.mamicode.com/"images/nav-right-bg.gif" width="16" height="29" /></td>  </tr>  <tr>    <td height="71" valign="middle" background="images/mail_leftbg.gif">&nbsp;</td>    <td valign="top" bgcolor="#F7F8F9"><div>        <!---->        <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0">          <tr>            <td height="10"><div style="font-size:12px;line-height:20px;">查看:                <a href=http://www.mamicode.com/picadvert.php>全部</a>                <a href=http://www.mamicode.com/"?weizi=0">会员后台</a> |                <a href=http://www.mamicode.com/"?weizi=1">网站首页轮播广告</a> |                <a href=http://www.mamicode.com/"?weizi=2">点就赚首页轮播广告 </a> |                <a href=http://www.mamicode.com/"?weizi=3">疯狂秒杀轮播广告</a>|                <a href=http://www.mamicode.com/"?weizi=4">疯狂秒杀左下部广告</a>|                <a href=http://www.mamicode.com/"?weizi=5">来就赚首页轮播广告</a>|                <a href=http://www.mamicode.com/"?weizi=6">易币商城轮播广告</a>|                <a href=http://www.mamicode.com/"?weizi=7">易币商城左下部广告</a>|                <a href=http://www.mamicode.com/"?weizi=8">特惠区轮播广告</a>|                <a href=http://www.mamicode.com/"?weizi=9">特惠区左下部广告</a>|                <a href=http://www.mamicode.com/"?weizi=10">快捷导航</a>|                <a href=http://www.mamicode.com/"?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="104" border:"solid 2px #CCC"  cellpadding="0" cellspacing="0" 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=http://www.mamicode.com/"">请选择广告位置</option>                                <option value=http://www.mamicode.com/"0">会员后台</option>                                <option value=http://www.mamicode.com/"1">网站首页轮播广告</option>                                <option value=http://www.mamicode.com/"2">点就赚首页轮播广告 </option>                                <option value=http://www.mamicode.com/"3">疯狂秒杀轮播广告</option>                                <option value=http://www.mamicode.com/"4">疯狂秒杀左下部广告</option>                                <option value=http://www.mamicode.com/"5">悬赏令左下部广告</option>                                <option value=http://www.mamicode.com/"6">易币商城轮播广告</option>                                <option value=http://www.mamicode.com/"7">易币商城左下部广告</option>                                <option value=http://www.mamicode.com/"8">特惠区轮播广告</option>                                <option value=http://www.mamicode.com/"9">特惠区左下部广告</option>                                <option value=http://www.mamicode.com/"10">快捷导航</option>                       </select></td>                    <td  class="left_txt2"><input name="picName" type="text" id="picName" size="15" /></td>                    <td class="left_txt2"><input name="picImg" type="text" id="picImg" size="15" /></td>                    <td class="left_txt2"><input type="text" name="picLink" id="picLink" size="15"  />                      <input type="button" value=http://www.mamicode.com/"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=http://www.mamicode.com/"1">显示</option>                        <option value=http://www.mamicode.com/"0">隐藏</option>                    </select></td>                    <td width="15%" class="left_txt2"><input type="submit" name="button" id="button" value=http://www.mamicode.com/"添加" /></td>                  </tr>                </form>               <?php                                $_row = _num_rows($_result);                        if ( $_row > 0 ) {                        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 0:                                    $_html[userid] = 易得网发布;                                    break;                                default:                                    $_html[userid] = $_rows[userid];                            }                                                        switch ( $_rows[weizi] ) {                                case 0:                                    $_html[weizi] = 会员后台;                                    break;                                case 1:                                    $_html[weizi] = 网站首页轮播广告;                                    break;                                case 2:                                    $_html[weizi] = 点就赚首页轮播广告;                                    break;                                case 3:                                    $_html[weizi] = 疯狂秒杀轮播广告;                                    break;                                case 4:                                    $_html[weizi] = 疯狂秒杀左下部广告;                                    break;                                case 5:                                    $_html[weizi] = 来就赚首页轮播广告;                                    break;                                case 6:                                    $_html[weizi] = 易币商城轮播广告;                                    break;                                case 7:                                    $_html[weizi] = 易币商城左下部广告;                                    break;                                case 8:                                    $_html[weizi] = 特惠区轮播广告;                                    break;                                case 9:                                    $_html[weizi] = 特惠区左下部广告;                                    break;                                case 10:                                    $_html[weizi] = 快捷导航;                                    break;                                case 11:                                    $_html[weizi] = 易得网Android App首页轮播;                                    break;                            }                                                        switch ( $_rows[isFreeze] ) {                                case 0:                                    $_html[isFreeze] = 隐藏;                                    break;                                case 1:                                    $_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=http://www.mamicode.com/?action=delete&id=<?php echo $_html[id]?>>删除</a> |                  <a href=http://www.mamicode.com/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(2);            ?>      </div></td>    <td background="images/mail_rightbg.gif">&nbsp;</td>  </tr>  <tr>    <td valign="middle" background="images/mail_leftbg.gif"><img src=http://www.mamicode.com/"images/buttom_left2.gif" width="17" height="17" /></td>    <td height="17" valign="top" background="images/buttom_bgs.gif"><img src=http://www.mamicode.com/"images/buttom_bgs.gif" width="17" height="17" /></td>    <td background="images/mail_rightbg.gif"><img src=http://www.mamicode.com/"images/buttom_right2.gif" width="16" height="17" /></td>  </tr></table></body></html>
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三联动

/数据库mysql-- 数据库: `student`---- ------------------------------------------------------------ 表的结构 `student`--CREATE TABLE `student` (  `id` int(50) NOT NULL auto_increment,  `name` varchar(50) collate utf8_unicode_ci NOT NULL,  `dept` varchar(50) collate utf8_unicode_ci NOT NULL,  `class` varchar(50) collate utf8_unicode_ci NOT NULL,  `sex` varchar(50) collate utf8_unicode_ci NOT NULL,  `dept_id` int(50) NOT NULL,  `class_id` int(50) NOT NULL,  PRIMARY KEY  (`id`)) ENGINE=MyISAM  DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=5 ;---- 导出表中的数据 `student`--INSERT INTO `student` (`id`, `name`, `dept`, `class`, `sex`, `dept_id`, `class_id`) VALUES(1, 计算机名字, 计算机工程系, 计061, , 1, 11),(2, 教计名字, 计算机工程系, 教技061, , 1, 14),(3, 管理名字, 管理系, 管理061, , 2, 21),(4, 机械名字, 机械工程系, 自动化061, , 3, 31);///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$i=0;$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=0;$sql="select * from student";$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 = 0; document.form1.s2.options[0] = new Option(22请选择22,‘‘); for (i=0; i<subcat.length; i++) {  if (subcat[i][0] == locationid)  {   document.form1.s2.options[document.form1.s2.length] = new Option(subcat[i][1], subcat[i][2]);  } }}function changeselect2(locationid){ document.form1.s3.length = 0; document.form1.s3.options[0] = new Option(33请选择33,‘‘); for (i=0; i<subcat2.length; i++) {  if (subcat2[i][0] == locationid)  {   document.form1.s3.options[document.form1.s3.length] = new Option(subcat2[i][2], subcat2[i][0]);  } }}</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=http://www.mamicode.com/1>计算机工程系</option><option  value=http://www.mamicode.com/2>管理系</option><option  value=http://www.mamicode.com/3>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>
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垃圾

$list->select("select * from tb_user where realName like ‘%$realName%’");<td width="32%" height="30" bgcolor="#f2f2f2" class="left_txt"><iframesrc="uploadPicsp.php" frameborder="0" width="350" height="30"></iframe></td>上传echo "<span style=‘color:red‘>冻结</span>"; <td width="158"><?php echo date("Y-m-d h:i:s",$row["addtime"]);?></td><?phpswitch ($row["tradingBao"]){case "0":echo "不支持";break;case "1":echo "支持";break;}?><option value=http://www.mamicode.com/"0" <?php if($isFreeze==0) echo "selected";?>>冻结</option><option value=http://www.mamicode.com/"1" <?php if($isFreeze==1) echo "selected";?>>解冻</option>if($regPwd!=""){$regPwd=($regPwd);$isok=$db->sql("update tb_user set regPwd=‘$regPwd‘ where id =$id");if($isok==1){}else{echo "<script>alert(‘修改失败‘);location.href=http://www.mamicode.com/‘user.php‘</script>";exit;}}  $list->select("select * from tb_user where realName like ‘%$realName%’");<td width="32%" height="30" bgcolor="#f2f2f2" class="left_txt"><iframesrc="uploadPicsp.php" frameborder="0" width="350" height="30"></iframe></td>上传echo "<span style=‘color:red‘>冻结</span>"; <td width="158"><?php echo date("Y-m-d h:i:s",$row["addtime"]);?></td><?phpswitch ($row["tradingBao"]){case "0":echo "不支持";break;case "1":echo "支持";break;}?><option value=http://www.mamicode.com/"0" <?php if($isFreeze==0) echo "selected";?>>冻结</option><option value=http://www.mamicode.com/"1" <?php if($isFreeze==1) echo "selected";?>>解冻</option>if($regPwd!=""){$regPwd=($regPwd);$isok=$db->sql("update tb_user set regPwd=‘$regPwd‘ where id =$id");if($isok==1){}else{echo "<script>alert(‘修改失败‘);location.href=http://www.mamicode.com/‘user.php‘</script>";exit;}}
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 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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php 10.1总