zoukankan      html  css  js  c++  java
  • 数据访问 例子 租房子

    <!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>无标题文档</title>
    </head>
    
    <body>
    <h1>租房子</h1>
    <?php
    require_once "../DBDA.class.php";
    $db = new DBDA();
    	$tj1 = " 1=1 ";
    	$tj2 = " 1=1 ";
    	$tj3 = " 1=1 ";
    	$tj4 = " 1=1 ";
    	$arr1 = array();
    	if(!empty($_POST["qy"])){
    		$arr1 = $_POST["qy"];
    		$str = implode("','",$arr1);
    		$tj1 = " area in ('{$str}')";		
    		}
    		$arr2 = array();
    			if(!empty($_POST["zl"])){
    			$arr2 = $_POST["zl"];
    			$str = implode("','",$arr2);
    			$tj2 = " renttype in ('{$str}')";		
    			}
    	$arr3 = array();
    	if(!empty($_POST["fw"])){
    		$arr3 = $_POST["fw"];
    		$str = implode("','",$arr3);
    		$tj3 = " housetype in ('{$str}')";		
    		}
    	$key = "";
    	if(!empty($_POST["key"])){
    		$key = $_POST["key"];
    		$tj4 = " keyword like '%{$key}%'";   
    		}
    ?>
    <form action="fangwu.php" method="post">
    <div>
    区域: <input  type="checkbox" id="qy"/>全选<br /><br />
    <?php
    $sqlqy = "select distinct area from house";
    $arrqy = $db->query($sqlqy);
    foreach ($arrqy as $v){
    	if(in_array($v[0],$arr1)){
    		echo " <input class='qy' type='checkbox' name='qy[]' value='{$v[0]}' checked='checked'/>{$v[0]} &nbsp";
    		}else{
    	echo " <input class='qy' type='checkbox' name='qy[]' value='{$v[0]}'/>{$v[0]} &nbsp";
    		}
    	}
    ?>
    </div>
    <br />
    <div>
    租赁类型: <input  type="checkbox" id="zl" />全选<br /><br />
    <?php
    $sqlzl = "select distinct renttype from house";
    $arrzl = $db->query($sqlzl);
    foreach ($arrzl as $v){
    	if(in_array($v[0],$arr2)){
    		echo " <input class= 'zl' type='checkbox' name='zl[]' value='{$v[0]}' checked='checked'/>{$v[0]} &nbsp";
    		}else{
    	echo " <input class= 'zl' type='checkbox' name='zl[]' value='{$v[0]}'/>{$v[0]} &nbsp";
    		}
    	}
    ?>
    </div>
    <br />
    <div>
    房屋类型: <input  type="checkbox" id="fw"/>全选<br /><br />
    <?php
    $sqlfw = "select distinct housetype from house";
    $arrfw = $db->query($sqlfw);
    foreach ($arrfw as $v){
    	if(in_array($v[0],$arr3)){
    		echo " <input class='fw'  type='checkbox' name='fw[]' value='{$v[0]}' checked='checked'/>{$v[0]} &nbsp";
    		}else{
    	echo " <input class='fw'  type='checkbox' name='fw[]' value='{$v[0]}'/>{$v[0]} &nbsp";
    		}
    	}
    ?>
    </div>
    <br />
    <div >
    关键字:<input type="text" name="key" value='<?php  echo $key; ?>' />
    </div>
    
    <div><input type="submit" value="搜索" /> 
    </div>
    <br>
    </form>
    <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
    
    	
    	$sql = "select * from house where {$tj1} and {$tj2} and {$tj3} and {$tj4}";
    	$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">
    var qy = document.getElementById("qy");
    qy.onclick = function(){
    	 var zt = qy.checked;
    	 var ck = document.getElementsByClassName("qy");
    	 for(var i=0;i<ck.length;i++){
    		 ck[i].checked = zt;
    		 }
    	}
    var zl = document.getElementById("zl");
    zl.onclick = function(){
    	 var zt = zl.checked;
    	 var ck = document.getElementsByClassName("zl");
    	 for(var i=0;i<ck.length;i++){
    		 ck[i].checked = zt;
    		 }
    	}
    var fw = document.getElementById("fw");
    fw.onclick = function(){
    	 var zt = fw.checked;
    	 var ck = document.getElementsByClassName("fw");
    	 for(var i=0;i<ck.length;i++){
    		 ck[i].checked = zt;
    		 }
    	}
    </script>
    </html>
    

      

    保持选中查询后条件还是在选中状态

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  • 原文地址:https://www.cnblogs.com/xiaohaihuaihuai/p/8324726.html
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