谷歌搜索留痕优化：WordPress禁止多语言评论的SEO代码实现
在谷歌搜索留痕优化过程中，网站评论管理是提升用户体验和SEO表现的重要环节。近期许多WordPress站长反映遭遇大量垃圾评论攻击，特别是全英文、日文、俄文等非目标语言评论，严重影响网站质量和谷歌搜索留痕效果。
During Google search trace optimization, website comment management is crucial for enhancing user experience and SEO performance. Many WordPress site owners have recently reported massive spam comment attacks, particularly full English, Japanese, Russian comments, significantly impacting website quality and Google search trace effectiveness.
解决方案一：禁止全英文或日文评论
Solution 1: Block Full English or Japanese Comments
以下代码可有效阻止纯英文和日文评论，帮助维护网站内容质量，优化谷歌搜索留痕表现：
The following code effectively blocks pure English and Japanese comments, helping maintain content quality and optimize Google search trace performance:
// 屏蔽纯英文评论和纯日文 function refused_english_comments($incoming_comment) { $pattern = '/[一-龥]/u'; // 禁止全英文评论 if(!preg_match($pattern, $incoming_comment['comment_content'])) { wp_die("您的评论中必须包含汉字!"); } $pattern = '/[あ-んア-ン]/u'; // 禁止日文评论 if(preg_match($pattern, $incoming_comment['comment_content'])) { wp_die("评论禁止包含日文!"); } return($incoming_comment); } add_filter('preprocess_comment', 'refused_english_comments'); 解决方案二：全面禁止多语言评论
Solution 2: Comprehensive Multi-language Comment Blocking
为更彻底地优化谷歌搜索留痕效果，可扩展至禁止英文、日文、俄文、韩文、阿拉伯文和泰文评论：
To more thoroughly optimize Google search trace effectiveness, extend to block English, Japanese, Russian, Korean, Arabic, and Thai comments:
// 禁止全英日俄韩阿泰语评论 function ssdax_comment_all_post($incoming_comment) { $enpattern = '/[一-龥]/u'; $jpattern = '/[ぁ-ん]+|[ァ-ヴ]+/u'; $ruattern = '/[А-я]+/u'; $krattern = '/[갂-줎]+|[줐-쥯]+|[쥱-짛]+|[짞-쪧]+|[쪨-쬊]+|[쬋-쭬]+|[쵡-힝]+/u'; $arattern = '/[؟-ض]+|[ط-ل]+|[م-م]+/u'; $thattern = '/[ก-๛]+/u'; if(!preg_match($enpattern, $incoming_comment['comment_content'])) { err("写点汉字吧，博主外语很捉急！ Please write some chinese words！"); } if(preg_match($jpattern, $incoming_comment['comment_content'])) { err("日文滚粗！Japanese Get out！日本語出て行け！"); } if(preg_match($ruattern, $incoming_comment['comment_content'])) { err("北方野人讲的话我们不欢迎！Russians, get away！Savage выйти из Русского Севера!"); } if(preg_match($krattern, $incoming_comment['comment_content'])) { err("思密达的世界你永远不懂！Please do not use Korean！하시기 바랍니다 한국 / 한국어 사용하지 마십시오！"); } if(preg_match($arattern, $incoming_comment['comment_content'])) { err("禁止使用阿拉伯语！Please do not use Arabic！！من فضلك لا تستخدم اللغة العربية"); } if(preg_match($thattern, $incoming_comment['comment_content'])) { err("人妖你好，人妖再见！Please do not use Thai！กรุณาอย่าใช้ภาษาไทย！"); } return($incoming_comment); } add_filter('preprocess_comment', 'ssdax_comment_all_post'); 解决方案三：禁止评论中的链接
Solution 3: Block Links in Comments
为防止恶意谷歌搜索留痕和垃圾链接，可添加以下代码禁止评论中包含链接：
To prevent malicious Google search trace and spam links, add the following code to block links in comments:
//禁止发链接 function wp_comment_post($incoming_comment) { $http = '/[href="|rel="nofollow"|http:\/\/|<\/a>]/u'; if(preg_match($http, $incoming_comment['comment_content'])) { err("禁止发链接地址！"); } return($incoming_comment); } add_filter('preprocess_comment', 'wp_comment_post'); 实施建议：将上述代码复制到当前主题的functions.php文件中最后一个?>标签之前。这些措施将显著提升网站内容质量，优化谷歌搜索留痕效果，同时保护网站免受垃圾评论侵害。
Implementation Suggestion: Copy the above codes before the last ?> tag in your current theme's functions.php file. These measures will significantly improve website content quality, optimize Google search trace effectiveness, while protecting your site from spam comments.
