php之租房子练习
一、题目要求
二、题目做法
1.建立数据库
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>
（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>
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>
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>
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