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防止外部提交表单|禁止跨站提交

May 25, 2016 pm 05:09 PM

防止外部提交表单|禁止跨站提交

$referer = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : NULL; 
$host = $_SERVER['HTTP_HOST']; 
echo '提交过来的地址:'.$referer; 
echo &#39;<br>&#39;; 
echo &#39;本站域名:&#39;.$host; echo &#39;<br>&#39;; 
echo substr($referer,7,strlen($host)); 
if(substr($referer,7,strlen($host)) != $host){ 
 echo &#39;非法操作&#39;; 
}else{ 
 echo &#39;正常操作&#39;; 
}
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