php练习 租房子
一、题目要求
做法
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>
