阻止IP地址，查询来自数据库的IP

Question

我有一个PHP代码，它的功能是阻止IP地址。

include ("includes/_db_.php"); 
$query_ip = mysql_query("SELECT * FROM t_ip_address"); 
while ($data_ip = mysql_fetch_array($query_ip)) 
{ 

$valid_ips = $data_ip['ip_address']; 

if (!in_array($_SERVER['REMOTE_ADDR'],$valid_ips)) 
{ 
    echo '<div class="denied"><img src="images/stop.png"/><span class="titles">Access Denied</span><br><span class="content">Sorry you do not have authorized to access this page.</span></div> 
     <div class="footer"><a href="../">Back to previous page</a></div> 
     '; 
     exit(); 
    } 
    } 

但现在面临的问题，错误的是：警告：in_array（）预计参数2是数组，字符串中...

任何人都有一个建议给？

Answer 1

您最好在数据库中搜索$_SERVER["REMOTE_ADDR"]并检查 是否返回任何内容。

$query_ip = mysql_query("SELECT * FROM t_ip_address where ip_address = '".mysql_real_escape_string($_SERVER["REMOTE_ADDR"])."'"; 
if (!mysql_fetch_array($query_ip)){ 
    echo '<div class="denied"><img src="images/stop.png"/><span class="titles">Access Denied</span><br><span class="content">Sorry you do not have authorized to access this page.   </span></div> 
    <div class="footer"><a href="../">Back to previous page</a></div> 
    '; 
    exit();   
}