小墙的防spam的能力，可以说100%啊！Akismet有时候会“误杀”正常的评论，而且会浪费数据库，强烈推荐大家使用“小牆”
將下列代碼 copy 到模板的 functions.php
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/* <<小牆>> Anti-Spam v1.82 by Willin Kan. 2010/12/16 最新修改 */ //建立 class anti_spam { function anti_spam() { if ( !current_user_can('level_0') ) { add_action('template_redirect', array($this, 'w_tb'), 1); add_action('init', array($this, 'gate'), 1); add_action('preprocess_comment', array($this, 'sink'), 1); } } //設欄位 function w_tb() { if ( is_singular() ) { ob_start(create_function('$input','return preg_replace("#textarea(.*?)name=([\"\'])comment([\"\'])(.+)/textarea>#", "textarea$1name=$2w$3$4/textarea><textarea name=\"comment\" cols=\"100%\" rows=\"4\" style=\"display:none\"></textarea>",$input);') ); } } //檢查 function gate() { if ( !empty($_POST['w']) && empty($_POST['comment']) ) { $_POST['comment'] = $_POST['w']; } else { $request = $_SERVER['REQUEST_URI']; $referer = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '隱瞞'; $IP = isset($_SERVER["HTTP_X_FORWARDED_FOR"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] . ' (透過代理)' : $_SERVER["REMOTE_ADDR"]; $way = isset($_POST['w']) ? '手動操作' : '未經評論表格'; $spamcom = isset($_POST['comment']) ? $_POST['comment'] : null; $_POST['spam_confirmed'] = "請求: ". $request. "\n來路: ". $referer. "\nIP: ". $IP. "\n方式: ". $way. "\n內容: ". $spamcom. "\n -- 記錄成功 --"; } } //處理 function sink( $comment ) { if ( !empty($_POST['spam_confirmed']) ) { if ( in_array( $comment['comment_type'], array('pingback', 'trackback') ) ) return $comment; //不管 Trackbacks/Pingbacks //方法一: 直接擋掉, 將 die(); 前面兩斜線刪除即可. //die(); //方法二: 標記為 spam, 留在資料庫檢查是否誤判. add_filter('pre_comment_approved', create_function('', 'return "spam";')); $comment['comment_content'] = "[ 小牆判斷這是Spam! ]\n". $_POST['spam_confirmed']; } return $comment; } } $anti_spam = new anti_spam(); // -- END ---------------------------------------- |
原文地址：http://kan.willin.org/?p=1267 作者：kan.willin
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