PHP-----练习-------租房子-----增删改查，多条件查询

Posted 2020-07-27 玉育

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了PHP-----练习-------租房子-----增删改查，多条件查询相关的知识，希望对你有一定的参考价值。

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

【2】封装类文件------DBDA.class.php

 1 <?php
 2 class DBDA
 3 {
 4     public $fuwuqi="localhost";  //服务器地址
 5     public $yonghuming="root";//用户名
 6     public $mima="";//密码    
 7     
 8     public $dbconnect;//连接对象
 9     
10     //操作数据库的方法
11     
12     //$sql代表需要执行的SQL语句
13     //$type代表SQL语句的类型，1代表查询，2代表增删改
14     //$shujukuming代表数据库的名称
15     //如果是查询，返回二维数组
16     //如果是增删改，返回true或false
17     
18     function Query($sql,$type=1,$shujukuming="house")
19     {
20         //造连接对象
21         $this->dbconnect = new mysqli($this->fuwuqi,$this->yonghuming,$this->mima,$shujukuming);
22         
23         //判断是否出错
24         if(!mysqli_connect_error())
25         {
26             //如果连接成功,执行SQL语句
27             $result = $this->dbconnect->query($sql);
28             
29             //根据语句类型判断
30             if($type==1)
31             {
32                //如果是查询语句,返回二维数组
33                return $result->fetch_all();    
34             }
35             else
36             {
37                 //如果是其他语句，返回true或false
38                return $result;    
39             }
40         
41         }
42         else
43         {
44             return"连接失败";
45             
46         }
47         
48         
49     }
50     
51 }
52 
53 
54 
55 
56 ?>

【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="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><!--id={$v[0]} 主键-->

【4】删除数据-----shanchuchuli.php

 1 <?php
 2 $id = $_GET["id"];
 3 var_dump($newsid);
 4 
 5 include("DBDA.class.php");
 6 
 7 $dx=new DBDA();
 8 
 9 $sql = "delete from House where id=\'{$id}\'";
10 $r = $dx->Query($sql,2);
11 if($r)
12 {
13     header("location:liebiaoyemian.php");
14 }
15 else
16 {
17     echo "删除失败！";
18 }

【5】编辑页面-------bianji.php

 1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 2 <html xmlns="http://www.w3.org/1999/xhtml">
 3 <head>
 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 5 <title>修改房屋数据</title>
 6 </head>
 7 <body>
 8 <!--newsid--><center>
 9 <h1>修改房屋数据</h1>
10 <?php
11 
12 $id = $_GET["id"];
13 
14 include("DBDA.class.php");
15 
16 $dx=new DBDA();
17 
18 //echo "id";
19 //var_dump($id);
20 
21 $sql="select * from house where id=\'{$id}\'";
22 $r=$dx->Query($sql);
23 
24 ?>
25 
26 
27 <form action="bianjichuli.php" method="post">
28 
29 <input type="hidden" name="id" value="<?php echo $r[0][0];?>"/><!--id传过的ID-->
30 
31 <div>关键字:<input type="text" name="KeyWord" value="<?php echo $r[0][1];?>"/></div>
32 <div>区域：<input type="text" name="Area" value="<?php echo $r[0][2];?>"/></div>
33 <div>使用面积:<input type="text" name="SquareMeter" value="<?php echo $r[0][3];?>"/></div>
34 <div>租金:<input type="text" name="Rent" value="<?php echo $r[0][4];?>"/></div>
35 <div>租贷类型:<input type="text" name="RentType" value="<?php echo $r[0][5];?>"/></div>
36 <div>房屋类型:<input type="text" name="HouseType" value="<?php echo $r[0][6];?>"/></div>
37 
38 
39 <div><input type="submit" value="更新"/></div>
40 
41 
42 </form>
43 <!--<a href="chakan.php"><input type="button" value="查看"></a>-->
44 </center>
45 </body>
46 </html>

【6】编辑的处理页面-------bianjichuli.php

 1 <?php
 2  
 3 //使用加载类
 4     
 5     include("DBDA.class.php");
 6     $db = new DBDA();
 7     $id=$_POST["id"];//传ID
 8     $KeyWord = $_POST["KeyWord"];
 9     $Area = $_POST["Area"];
10     $SquareMeter = $_POST["SquareMeter"];
11     $Rent = $_POST["Rent"];
12     $RentType = $_POST["RentType"];
13     $HouseType = $_POST["HouseType"];
14 $sql="update house set KeyWord=\'{$KeyWord}\',Area=\'{$Area}\',SquareMeter=\'{$SquareMeter}\',Rent=\'{$Rent}\',RentType=\'{$RentType}\',HouseType=\'{$HouseType}\' where id=\'{$id}\'";// where id=\'{$id}
15 
16 //echo $sql;
17      
18     $attr = $db->Query($sql,2);
19     //var_dump($attr);
20     if($attr)
21     {
22         header("location:liebiaoyemian.php");   
23     }
24     else
25     {
26         echo "修改失败";   
27     }

【7】添加数据页面--------tianjiashuju.php

 1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 2 <html xmlns="http://www.w3.org/1999/xhtml">
 3 <head>
 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 5 <title>添加页面</title>
 6 
 7 
 8 </head>
 9 <style>
10     .kong
11     {
12         margin:10px 0px 10px 0px;
13         vertical-align: 
14     }
15 </style>
16 <body>
17 <form action="tianjiachili.php" method="post">
18     
19  <h3>添加房屋信息页面</h3>   
20 
21     <div class="kong">
22         关键字：
23         <input type="text" name="KeyWord"/>
24     </div>
25     <div class="kong">
26         区域：
27         <input type="text" name="Area"/>
28     </div>
29     <div class="kong">
30         使用面积：
31         <input type="text" name="SquareMeter"/>
32     </div>
33     <div class="kong">
34         租金：
35         <input type="text" name="Rent">
36     </div>
37     <div class="kong">
38         租赁类型：
39         <input type="text" name="RentType"/>
40     </div>
41     <div class="kong">
42         房屋类型
43         <input type="text" name="HouseType"/>
44     </div>
45 <div>
46     <input type="submit" value="确定"/><!--插入信息-->
47     <a href="liebiaoyemian.php"><input type="button" value="返回主页" /></a>
48 </div>
49 </form>    
50 
51 </body>
52 </html>

【8】添加的处理 --------tianjiachili.php

 1 <?php 
 2 //$id = $_POST["id"];
 3 $KeyWord = $_POST["KeyWord"];
 4 $Area = $_POST["Area"];
 5 $SquareMeter = $_POST["SquareMeter"];
 6 $Rent = $_POST["Rent"];
 7 $RentType = $_POST["RentType"];
 8 $HouseType = $_POST["HouseType"];
 9 
10 //造连接对象
11 include("DBDA.class.php");
12 $db=new DBDA();
13 
14 //写sql语句
15 $sql="insert into house values(\'\',\'{$KeyWord}\',\'{$Area}\',\'{$SquareMeter}\',\'{$Rent}\',\'{$RentType}\',\'{$HouseType}\')";
16 //执行语句
17 $r=$db->Query($sql,2);//($sql,2)   2代表增删改    错在了2上
18 
19 if($r) 
20 {
21     header("location:liebiaoyemian.php");
22 }
23 else{
24     echo "执行失败！";
25 }
26  ?>

【9】多条件查询------duotiaojianchaxun.php

  1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  2 <html xmlns="http://www.w3.org/1999/xhtml">
  3 <head>
  4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  5 <title>租房子----多条件查询</title>
  6 </head>
  7 
  8 <body>
  9 
 10 <body>
 11 <form action="duotiaojianchaxun.php" method="post">
 12 <div>区域：<input type="checkbox" onclick="CheckAll(this,\'qy\')" />全选</div>
 13 <div>
 14 <?php
 15 include("DBDA.class.php");
 16 $db = new DBDA();
 17  
 18 $sqlqy = "select distinct Area from house";
 19 $attrqy = $db->Query($sqlqy);
 20 //var_dump($attrqy);
 21  
 22 foreach($attrqy as $v)
 23 {
 24     echo "<input class=\'qy\' type=\'checkbox\' value=\'{$v[0]}\' name=\'qy[]\'/>{$v[0]} ";     
 25 }
 26 ?>
 27 </div><br />
 28  
 29 <div>租赁类型：<input type="checkbox" onclick="CheckAll(this,\'zl\')"  />全选</div>
 30 <div>
 31 <?php
 32  
 33 $sqlzl = "select distinct RentType from House";
 34 $attrzl = $db->Query($sqlzl);
 35  
 36 foreach($attrzl as $v)
 37 {
 38     echo "<input class=\'zl\' type=\'checkbox\' value=\'{$v[0]}\' name=\'zl[]\'/>{$v[0]} ";     
 39 }
 40 ?>
 41 </div><br />
 42  
 43 <div>房屋类型：<input type="checkbox" onclick="CheckAll(this,\'fw\')"  />全选</div>
 44 <div>
 45 <?php
 46  
 47 $sqlfw = "select distinct HouseType from House";
 48 $attrfw = $db->Query($sqlfw);
 49 //var_dump($attrqy);
 50  
 51 foreach($attrfw as $v)
 52 {
 53     echo "<input class=\'fw\' type=\'checkbox\' value=\'{$v[0]}\' name=\'fw[]\'/>{$v[0]} ";     
 54 }
 55 ?>
 56 </div><br />
 57  
 58 <div>关键字：<input type="text" name="keyword" id="key" />
 59 </form>
 60 <br />
 61 <input type="submit" value="搜索" />
 62  
 63 <br />
 64 <br />
 65 <br />
 66  
 67 <table cellpadding="1" cellspacing="1" border="1" width="100%">
 68     <tr>
 69         <td>关键字</td>
 70         <td>区域</td>
 71         <td>面积</td>
 72         <td>租金</td>
 73         <td>租赁类型</td>
 74         <td>房屋类型</td>
 75     </tr>
 76  
 77 <?php
 78  
 79 $tj = "";
 80 $tj1 = "1=1";
 81 $tj2 = "1=1";
 82 $tj3 = "1=1";
 83 $tj4 = "1=1";
 84  
 85 if(!empty($_POST["qy"]))
 86 {
 87     $attr = $_POST["qy"];
 88     $str = implode("\',\'",$attr);
 89     $tj1 = " Area in (\'{$str}\')";  
 90 }
 91  
 92 if(!empty($_POST["zl"]))
 93 {
 94     $attr = $_POST["zl"];
 95     $str = implode("\',\'",$attr);
 96     $tj2 = " RentType in (\'{$str}\')";  
 97 }
 98  
 99 if(!empty($_POST["fw"]))
100 {
101     $attr = $_POST["fw"];
102     $str = implode("\',\'",$attr);
103     $tj3 = " HouseType in (\'{$str}\')"; 
104 }
105  
106 if(!empty($_POST["keyword"]))
107 {
108     $attr = $_POST["keyword"];
109     $tj3 = " keyword like \'%{$attr}%\'";
110 }
111  
112 $tj = " Where {$tj1} and {$tj2} and {$tj3} and {$tj4}";//Where  前加空格
113  
114 $sql = "select * from House".$tj;
115 $attrall = $db->Query($sql);
116 //var_dump($attrall);
117  
118 foreach($attrall as $v)
119 {
120     echo "<tr>
121             <td>{$v[1]}</td>
122             <td>{$v[2]}</td>
123             <td>{$v[3]}</td>
以上是关于PHP-----练习-------租房子-----增删改查，多条件查询的主要内容，如果未能解决你的问题，请参考以下文章 
 php  租房子练习
 PHP租房子练习
 PHP 练习3：租房子
 php之租房子练习
 php封装+租房子练习题
 增删改查租房子练习题