时间:2021-07-01 10:21:17 帮助过:44人阅读
php数据访问例子:租房信息管理,具体内容如下
1.数据库建表
2. zufangzi.php
- <body>
- <h1>租房子</h1>
- <form action="zufangzi.php" method="post">
- <div>区域:<input type="checkbox" name="qx" onclick="quanxuan(this,'qy')" />全选</div>
- <div>
- <?php
- require "DBDA.class1.php";
- $db = new DBDA();
- $sqy = "select distinct area from house";//写SQL语句,并去重
- $aqy = $db->query($sqy);
- foreach($aqy as $v)
- {
- echo "<input type='checkbox' name='qy[]' value='{$v[0]}' class='qy' />{$v[0]}";
- }
- ?>
- </div>
- <br />
- <div>租赁类型:<input type="checkbox" name="zlqx" onclick="quanxuan(this,'zl')" />全选</div>
- <div>
- <?php
- $szl = "select distinct renttype from house";
- $azl = $db->query($szl);
- foreach($azl as $v)
- {
- echo "<input type='checkbox' name='zl[]' value='{$v[0]}' class='zl' />{$v[0]}";
- }
- ?>
- </div>
- <br />
- <div>房屋类型:<input type="checkbox" name="fwqx" onclick="quanxuan(this,'fw')" />全选</div>
- <div>
- <?php
- $sfw = "select distinct housetype from house";
- $afw = $db->query($sfw);
- foreach($afw as $v)
- {
- echo "<input type='checkbox' name='fw[]' value='{$v[0]}' class='fw' />{$v[0]}";
- }
- ?>
- </div>
- <br />
- <div>关键字:<input type="text" name="key" /> <input type="submit" value="查询" /></div>
- </form>
- <br />
- <table width="100%" border="1" cellpadding="0" cellspacing="0">
- <tr>
- <td>关键字</td>
- <td>区域</td>
- <td>建筑面积</td>
- <td>租金</td>
- <td>租赁类型</td>
- <td>房屋类型</td>
- </tr>
- <?php
- $tj1 = " 1=1 ";
- $tj2 = " 1=1 ";
- $tj3 = " 1=1 ";
- $tj4 = " 1=1 ";
- if(!empty($_POST["qy"]))
- {
- $aqy = $_POST["qy"];
- $sqy = implode("','",$aqy);
- $tj1 = " area in ('{$sqy}') ";
- }
- if(!empty($_POST["zl"]))
- {
- $azl = $_POST["zl"];
- $szl = implode("','",$azl);
- $tj2 = " renttype in ('{$szl}') ";
- }
- if(!empty($_POST["fw"]))
- {
- $afw = $_POST["fw"];
- $sfw = implode("','",$afw);
- $tj3 = " housetype in ('{$sfw}') ";
- }
- if(!empty($_POST["key"]))
- {
- $k = $_POST["key"];
- $tj4 = " keyword like '%{$k}%' ";
- }
- $sql = "select * from house where {$tj1} and {$tj2} and {$tj3} and {$tj4}";
- echo $sql;
- $arr = $db->query($sql);
- foreach($arr 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 quanxuan(qx,a)
- {
- //找到该全选按钮对应的checkbox列表
- var ck = document.getElementsByClassName(a);
- //找全选按钮选中状态
- if(qx.checked)
- {
- for(var i=0;i<ck.length;i++)
- {
- ck[i].setAttribute("checked","checked");
- }
- }
- else
- {
- for(var i=0;i<ck.length;i++)
- {
- ck[i].removeAttribute("checked");
- }
- }
- }
- </script>
- </html>
所引用的封装类
- <?php
- class DBDA
- {
- public $host = "localhost";
- public $uid = "root";
- public $pwd = "123";
- public $dbname = "test_123";
- //执行SQL语句返回相应的结果
- //$sql 要执行的SQL语句
- //$type 代表SQL语句的类型,0代表增删改,1代表查询
- function query($sql,$type=1)
- {
- $db = new MySQLi($this->host,$this->uid,$this->pwd,$this->dbname);
- $result = $db->query($sql);
- if($type)
- {
- //如果是查询,显示数据
- return $result->fetch_all();
- }
- else
- {
- //如果是增删改,返回true或者false
- return $result;
- }
- }
- }
呈现页面
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。