wordpress评论禁止纯英文日语代码

//评论禁止纯英文、日语
function refused_spam_comments($comment_data) {
 $pattern = '/[一-龥]/u';
 $jpattern = '/[ぁ-ん]+|[ァ-ヴ]+/u';
 if (!preg_match($pattern, $comment_data['comment_content'])) {
 err(__('禁止纯英文评论！You should type some Chinese word!'));
 }
 if (preg_match($jpattern, $comment_data['comment_content'])) {
 err(__('关于日语，站长勉强听懂雅蠛蝶 Japanese Get out！日本语出て行け！ You should type some Chinese word！'));
 }
 return ($comment_data);
}
 add_filter('preprocess_comment', 'refused_spam_comments');