php實現cc攻擊防禦的方法和防止快速重新整理頁面樣本

 這篇文章主要介紹了php實現cc攻擊防禦的方法和防止快速重新整理頁面樣本,需要的朋友可以參考下

 代碼如下:<?php//代理IP直接退出empty($_SERVER['HTTP_VIA']) or exit('Access Denied');//防止快速重新整理session_start();$seconds = '3'; //時間段[秒]$refresh = '5'; //重新整理次數//設定監控變數$cur_time = time();if(isset($_SESSION['last_time'])){ $_SESSION['refresh_times'] += 1;}else{ $_SESSION['refresh_times'] = 1; $_SESSION['last_time'] = $cur_time;}//處理監控結果if($cur_time - $_SESSION['last_time'] < $seconds){ if($_SESSION['refresh_times'] >= $refresh){  //跳轉至攻擊者伺服器位址  header(sprintf('Location:%s', 'http://127.0.0.1'));  exit('Access Denied'); }}else{ $_SESSION['refresh_times'] = 0; $_SESSION['last_time'] = $cur_time;}?>