<?php	$db = new MySQLi("localhost","root","112834","hao");	$tj1 = "1=1";	$tj2 = "1=1";	$tj3 = "1=1";	$tj4 = "1=1";if(!empty($_POST["qx"]) && count($_POST["qx"])>0){	$qx = $_POST["qx"];	$str = implode("‘,‘",$qx);		$tj1 = " area in(‘{$str}‘) ";}if(!empty($_POST["zl"]) && count($_POST["zl"])>0){	$zl = $_POST["zl"];	$str = implode("‘,‘",$zl);		$tj2 = " renttype in(‘{$str}‘) ";}if(!empty($_POST["fz"]) && count($_POST["fz"])>0){	$fw = $_POST["fz"];	$str = implode("‘,‘",$fz);		$tj3 = " housetype in(‘{$str}‘) ";}if(!empty($_POST["key"])){	$key = $_POST["key"];	$tj4 = " keyword like ‘%{$key}%‘ ";}	?><h1>租房子</h1><form action="duoxuan.php" method="post" ><div>区域：<input type="checkbox"  />全选</div><div><?php$sqlq = "select distinct area  from fangzi";$rq = $db->query($sqlq);$aq = $rq->fetch_all();foreach($aq as $v){echo"<input type=‘checkbox‘ name=‘qx[]‘ value=http://www.mamicode.com/‘{$v[0]}‘ />{$v[0]}"	; }?></div><div>租赁类型：<input type="checkbox"   />全选</div><div><?php$sqlz = "select distinct renttype  from fangzi";$rz = $db->query($sqlz);$az = $rz->fetch_all();foreach($az as $v){echo"<input type=‘checkbox‘ name=‘zl[]‘ value=http://www.mamicode.com/‘{$v[0]}‘ />{$v[0]}"	; }?></div><div>房屋类型：<input type="checkbox"   />全选</div><div><?php$sqlx = "select distinct hotsetype  from fangzi";$rx = $db->query($sqlx);$ax = $rx->fetch_all();foreach($ax as $v){echo"<input type=‘checkbox‘ name=‘fz[]‘ value=http://www.mamicode.com/‘{$v[0]}‘ />{$v[0]}"	; }?></div><div>关键字:<input type="text" name="key" /><input type="submit" value="http://www.mamicode.com/查询" /></div></form><table width="100%" border="1" cellpadding="0" cellspacing="0">	<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	$sqlall = "select * from fangzi";    $rall = $db->query($sqlall);    $aall = $rall->fetch_all();	foreach($aall 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>