PHP-----练习-------租房子-----增删改查，多条件查询

练习-------租房子-----增删改查，多条件

一、题目要求：

二、做法：

【1】建立数据库

PHP-----练习-------租房子-----增删改查，多条件查询

【2】封装类文件------DBDA.class.php

 <?php

 class DBDA

 {

     public $fuwuqi="localhost";  //服务器地址

     public $yonghuming="root";//用户名

     public $mima="";//密码    

     public $dbconnect;//连接对象

     //操作数据库的方法

     //$sql代表需要执行的SQL语句

     //$type代表SQL语句的类型，1代表查询，2代表增删改

     //$shujukuming代表数据库的名称

     //如果是查询，返回二维数组

     //如果是增删改，返回true或false

     function Query($sql,$type=,$shujukuming="house")

     {

         //造连接对象

         $this->dbconnect = new MySQLi($this->fuwuqi,$this->yonghuming,$this->mima,$shujukuming);

         //判断是否出错

         if(!mysqli_connect_error())

         {

             //如果连接成功,执行SQL语句

             $result = $this->dbconnect->query($sql);

             //根据语句类型判断

             if($type==)

             {

                //如果是查询语句,返回二维数组

                return $result->fetch_all();

             }

             else

             {

                 //如果是其他语句，返回true或false

                return $result;

             }

         }

         else

         {

             return"连接失败";

         }

     }

 }

 ?>

【3】租房子首页-----liebiaoyemian.php

<!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>租房子---首页</title>

</head>

<body>

<table width="1000px" cellpadding="" border="" ellspacing="">

<tr>

<td>关键字</td>

<td>区域</td>

<td>使用面积</td>

<td>租金</td>

<td>租贷类型</td>

<td>房屋类型</td>

<td></td>

<td></td>

</tr>

<?php

include("DBDA.class.php");

$dx=new DBDA();

$sql="select * from house";

$r = $dx->Query($sql,);

//$attr=$result->fetch_all();

foreach($r as $v)

{

echo

"<tr>

<td>{$v[]}</td>

<td>{$v[]}</td>

<td>{$v[]}</td>

<td>{$v[]}</td>

<td>{$v[]}</td>

<td>{$v[]}</td>

<td><a href='bianji.php?id={$v[0]}'>编辑</a></td>

<td><a href='shanchuchuli.php?id={$v[0]}' onclick=\"return confirm('确定删除吗')\">删除</a></td>

</tr>";

}

?>

</table>

<br />

<br />

<a href="tianjiashuju.php"><input type="button" value="添加数据"/></a>

<a href="duotiaojianchaxun.php"><input type="button" value="搜索查询" /></a>

</title>

</body>

</html><!--id={$v[]} 主键-->

PHP-----练习-------租房子-----增删改查，多条件查询

【4】删除数据-----shanchuchuli.php

 <?php

 $id = $_GET["id"];

 var_dump($newsid);

 include("DBDA.class.php");

 $dx=new DBDA();

 $sql = "delete from House where id='{$id}'";

 $r = $dx->Query($sql,);

 if($r)

 {

     header("location:liebiaoyemian.php");

 }

 else

 {

     echo "删除失败！";

 }

PHP-----练习-------租房子-----增删改查，多条件查询

【5】编辑页面-------bianji.php

 <!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>修改房屋数据</title>

 </head>

 <body>

 <!--newsid--><center>

 <h1>修改房屋数据</h1>

 <?php

 $id = $_GET["id"];

 include("DBDA.class.php");

 $dx=new DBDA();

 //echo "id";

 //var_dump($id);

 $sql="select * from house where id='{$id}'";

 $r=$dx->Query($sql);

 ?>

 <form action="bianjichuli.php" method="post">

 <input type="hidden" name="id" value="<?php echo $r[0][0];?>"/><!--id传过的ID-->

 <div>关键字:<input type="text" name="KeyWord" value="<?php echo $r[0][1];?>"/></div>

 <div>区域：<input type="text" name="Area" value="<?php echo $r[0][2];?>"/></div>

 <div>使用面积:<input type="text" name="SquareMeter" value="<?php echo $r[0][3];?>"/></div>

 <div>租金:<input type="text" name="Rent" value="<?php echo $r[0][4];?>"/></div>

 <div>租贷类型:<input type="text" name="RentType" value="<?php echo $r[0][5];?>"/></div>

 <div>房屋类型:<input type="text" name="HouseType" value="<?php echo $r[0][6];?>"/></div>

 <div><input type="submit" value="更新"/></div>

 </form>

 <!--<a href="chakan.php"><input type="button" value="查看"></a>-->

 </center>

 </body>

 </html>

【6】编辑的处理页面-------bianjichuli.php

 <?php

 //使用加载类

     include("DBDA.class.php");

     $db = new DBDA();

     $id=$_POST["id"];//传ID

     $KeyWord = $_POST["KeyWord"];

     $Area = $_POST["Area"];

     $SquareMeter = $_POST["SquareMeter"];

     $Rent = $_POST["Rent"];

     $RentType = $_POST["RentType"];

     $HouseType = $_POST["HouseType"];

 $sql="update house set KeyWord='{$KeyWord}',Area='{$Area}',SquareMeter='{$SquareMeter}',Rent='{$Rent}',RentType='{$RentType}',HouseType='{$HouseType}' where id='{$id}'";// where id='{$id}

 //echo $sql;

     $attr = $db->Query($sql,);

     //var_dump($attr);

     if($attr)

     {

         header("location:liebiaoyemian.php");

     }

     else

     {

         echo "修改失败";

     }

PHP-----练习-------租房子-----增删改查，多条件查询

【7】添加数据页面--------tianjiashuju.php

 <!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>添加页面</title>

 </head>

 <style>

     .kong

     {

         margin:10px 0px 10px 0px;

         vertical-align:

     }

 </style>

 <body>

 <form action="tianjiachili.php" method="post">

  <h3>添加房屋信息页面</h3>   

     <div class="kong">

         关键字：

         <input type="text" name="KeyWord"/>

     </div>

     <div class="kong">

         区域：

         <input type="text" name="Area"/>

     </div>

     <div class="kong">

         使用面积：

         <input type="text" name="SquareMeter"/>

     </div>

     <div class="kong">

         租金：

         <input type="text" name="Rent">

     </div>

     <div class="kong">

         租赁类型：

         <input type="text" name="RentType"/>

     </div>

     <div class="kong">

         房屋类型

         <input type="text" name="HouseType"/>

     </div>

 <div>

     <input type="submit" value="确定"/><!--插入信息-->

     <a href="liebiaoyemian.php"><input type="button" value="返回主页" /></a>

 </div>

 </form>    

 </body>

 </html>

【8】添加的处理 --------tianjiachili.php

 <?php

 //$id = $_POST["id"];

 $KeyWord = $_POST["KeyWord"];

 $Area = $_POST["Area"];

 $SquareMeter = $_POST["SquareMeter"];

 $Rent = $_POST["Rent"];

 $RentType = $_POST["RentType"];

 $HouseType = $_POST["HouseType"];

 //造连接对象

 include("DBDA.class.php");

 $db=new DBDA();

 //写sql语句

 $sql="insert into house values('','{$KeyWord}','{$Area}','{$SquareMeter}','{$Rent}','{$RentType}','{$HouseType}')";

 //执行语句

 $r=$db->Query($sql,);//($sql,2)   2代表增删改    错在了2上

 if($r)

 {

     header("location:liebiaoyemian.php");

 }

 else{

     echo "执行失败！";

 }

  ?>

PHP-----练习-------租房子-----增删改查，多条件查询

【9】多条件查询------duotiaojianchaxun.php

 <!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>租房子----多条件查询</title>

 </head>

 <body>

 <body>

 <form action="duotiaojianchaxun.php" method="post">

 <div>区域：<input type="checkbox" onclick="CheckAll(this,'qy')" />全选</div>

 <div>

 <?php

 include("DBDA.class.php");

 $db = new DBDA();

 $sqlqy = "select distinct Area from house";

 $attrqy = $db->Query($sqlqy);

 //var_dump($attrqy);

 foreach($attrqy as $v)

 {

     echo "<input class='qy' type='checkbox' value='{$v[0]}' name='qy[]'/>{$v[0]} ";

 }

 ?>

 </div><br />

 <div>租赁类型：<input type="checkbox" onclick="CheckAll(this,'zl')"  />全选</div>

 <div>

 <?php

 $sqlzl = "select distinct RentType from House";

 $attrzl = $db->Query($sqlzl);

 foreach($attrzl as $v)

 {

     echo "<input class='zl' type='checkbox' value='{$v[0]}' name='zl[]'/>{$v[0]} ";

 }

 ?>

 </div><br />

 <div>房屋类型：<input type="checkbox" onclick="CheckAll(this,'fw')"  />全选</div>

 <div>

 <?php

 $sqlfw = "select distinct HouseType from House";

 $attrfw = $db->Query($sqlfw);

 //var_dump($attrqy);

 foreach($attrfw as $v)

 {

     echo "<input class='fw' type='checkbox' value='{$v[0]}' name='fw[]'/>{$v[0]} ";

 }

 ?>

 </div><br />

 <div>关键字：<input type="text" name="keyword" id="key" />

 </form>

 <br />

 <input type="submit" value="搜索" />

 <br />

 <br />

 <br />

 <table cellpadding="1" cellspacing="1" border="1" width="100%">

     <tr>

         <td>关键字</td>

         <td>区域</td>

         <td>面积</td>

         <td>租金</td>

         <td>租赁类型</td>

         <td>房屋类型</td>

     </tr>

 <?php

 $tj = "";

 $tj1 = "1=1";

 $tj2 = "1=1";

 $tj3 = "1=1";

 $tj4 = "1=1";

 if(!empty($_POST["qy"]))

 {

     $attr = $_POST["qy"];

     $str = implode("','",$attr);

     $tj1 = " Area in ('{$str}')";

 }

 if(!empty($_POST["zl"]))

 {

     $attr = $_POST["zl"];

     $str = implode("','",$attr);

     $tj2 = " RentType in ('{$str}')";

 }

 if(!empty($_POST["fw"]))

 {

     $attr = $_POST["fw"];

     $str = implode("','",$attr);

     $tj3 = " HouseType in ('{$str}')";

 }

 if(!empty($_POST["keyword"]))

 {

     $attr = $_POST["keyword"];

     $tj3 = " keyword like '%{$attr}%'";

 }

 $tj = " Where {$tj1} and {$tj2} and {$tj3} and {$tj4}";//Where  前加空格

 $sql = "select * from House".$tj;

 $attrall = $db->Query($sql);

 //var_dump($attrall);

 foreach($attrall as $v)

 {

     echo "<tr>

             <td>{$v[1]}</td>

             <td>{$v[2]}</td>

             <td>{$v[3]}</td>

             <td>{$v[4]}</td>

             <td>{$v[5]}</td>

             <td>{$v[6]}</td>

         </tr>";

 }

 ?>

 </table>

 </body>

 <script type="text/javascript">

 function CheckAll(a,b)//this表示该

 {

     var qx = a.checked;

     var ck = document.getElementsByClassName(b);

     for(var i =0;i<ck.length;i++)

     {

         ck[i].checked = qx;

     }

 }

 </script>

 </html>

 </body>

 </html>

PHP-----练习-------租房子-----增删改查，多条件查询