搜索多個標準的MySQL

Question

我收到以下錯誤，請幫助

警告：mysql_num_rows（）預計參數1是資源，布爾在d給出：\上線16

託管\ 10102937 \ HTML \的search.php

警告：mysql_num_rows（）預計參數1是資源，在布爾給出d：\在線託管\ 10102937 \ HTML \的search.php 23

警告：mysql_num_rows（）預計參數1是資源，布爾D：\ hosting \ 10102937 \ html \ search.php 25行

這是我的PHP代碼

include("connection.php"); 

$type = $_POST['type']; 
$address = $_POST['address']; 
$bedrooms = $_POST['bedrooms']; 
$min = $_POST['price']; 
$max = $_POST['price']; 
//$sql ="SELECT * FROM subscribers2 WHERE type = '%$type%' AND address = '%$address%' AND bedrooms = '%$bedrooms%' AND min as '%$min%' AND max as '%$max%' "; 


$rs_result = mysql_query ($sql); 
$num_rows = mysql_num_rows($rs_result); 
$query = mysql_query("SELECT * FROM subscribers2 WHERE type = '%$type%' AND address = '%$address%' AND bedrooms = '%$bedrooms%' AND min as '%$price%' AND max as '%$price%' "); 



$rs_result = mysql_query ($sql); 
$num_rows = mysql_num_rows($rs_result); 
$query = mysql_query("SELECT * FROM subscribers2 WHERE type LIKE '%$type%' AND address LIKE '%$address%' AND bedrooms LIKE '%$bedrooms%' AND min as '%$price%' AND max as '%$price%' "); 
$number=mysql_num_rows($query); 
?> 

Answer 1

它看起來像你的查詢$sql當你的查詢字符串註釋掉。

但這只是3個mysql錯誤中的1個。

你會發現錯誤使用mysql_erroras documented here。

您還應該考慮SQL注入，您的參數正在通過POST直接傳遞到數據庫級別，這會使服務器的數據庫處於打開狀態。