// 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":2527,"date":"2022-07-13T08:11:48","date_gmt":"2022-07-12T23:11:48","guid":{"rendered":"https:\/\/one-foodie.com\/?p=2527"},"modified":"2022-07-13T08:11:57","modified_gmt":"2022-07-12T23:11:57","slug":"tokyo-kenkyo-%e7%a5%9e%e6%b3%89","status":"publish","type":"post","link":"https:\/\/one-foodie.com\/2527\/","title":{"rendered":"Tokyo Kenkyo \/ \u795e\u6cc9"},"content":{"rendered":"