php cc攻擊防禦與防快速重新整理代碼

//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; } ?> 複製代碼

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