// Contact Form7のお問い合せフォーム項目にひらがなが無ければ送信不可 add_filter('wpcf7_validate_textarea', 'wpcf7_validation_textarea_hiragana', 10, 2); add_filter('wpcf7_validate_textarea*', 'wpcf7_validation_textarea_hiragana', 10, 2); function wpcf7_validation_textarea_hiragana($result, $tag) { $name = $tag['name']; $value = (isset($_POST[$name])) ? (string) $_POST[$name] : ''; if ($value !== '' && !preg_match('/[ぁ-ん]/u', $value)) { $result['valid'] = false; $result['reason'] = array($name => 'エラー:こちらの内容は送信できません。'); } return $result; }{"id":539,"date":"2022-05-03T20:42:43","date_gmt":"2022-05-03T11:42:43","guid":{"rendered":"https:\/\/one-foodie.com\/?p=539"},"modified":"2022-05-20T13:56:25","modified_gmt":"2022-05-20T04:56:25","slug":"%e3%83%86%e3%82%b9%e3%83%88las-dos-caras-%e5%8e%9f%e5%ae%bf-%e6%98%8e%e6%b2%bb%e6%96%b0%e5%ae%bf%e5%89%8d","status":"publish","type":"post","link":"https:\/\/one-foodie.com\/539\/","title":{"rendered":"BE:SIDE \/ \u8868\u53c2\u9053"},"content":{"rendered":"