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PHP 练习3：租房子

一、题目要求

PHP 练习3：租房子-LMLPHP

PHP 练习3：租房子-LMLPHPPHP 练习3：租房子-LMLPHP

PHP 练习3：租房子-LMLPHP

二、题目做法

1.建立数据库

PHP 练习3：租房子-LMLPHP

PHP 练习3：租房子-LMLPHP

PHP 练习3：租房子-LMLPHP

2.封装类文件

<?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=1,$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==1)

            {

               //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

<!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="1" border="1" ellspacing="1">

<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,1);

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

foreach($r 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>

<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>

PHP 练习3：租房子-LMLPHP

（4）删除数据处理页面

<?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,2);

if($r)

{

    header("location:liebiaoyemian.php");

}

else

{

    echo "删除失败！";

}

5.编辑页面

<!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>

PHP 练习3：租房子-LMLPHP

6.编辑处理页面

<?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,2);

    //var_dump($attr);

    if($attr)

    {

        header("location:liebiaoyemian.php");

    }

    else

    {

        echo "修改失败";

    }

7.添加数据页面

<!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>

PHP 练习3：租房子-LMLPHP

8.添加数据处理页面

<?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($sql,2);//($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！";

}

 ?>

9.搜索页面（多条件查询）

<!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3：租房子-LMLPHP

05-11 19:53
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