// 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":1866,"date":"2022-06-14T21:09:59","date_gmt":"2022-06-14T12:09:59","guid":{"rendered":"https:\/\/one-foodie.com\/?p=1866"},"modified":"2022-06-15T17:46:44","modified_gmt":"2022-06-15T08:46:44","slug":"mark-matsuoka-gril-%e4%b8%ad%e7%9b%ae%e9%bb%92","status":"publish","type":"post","link":"https:\/\/one-foodie.com\/1866\/","title":{"rendered":"Mark Matsuoka Gril \/ \u4e2d\u76ee\u9ed2"},"content":{"rendered":"