// 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":2199,"date":"2022-07-06T19:05:46","date_gmt":"2022-07-06T10:05:46","guid":{"rendered":"https:\/\/one-foodie.com\/?p=2199"},"modified":"2022-07-06T19:05:48","modified_gmt":"2022-07-06T10:05:48","slug":"%e3%82%ac%e3%83%bc%e3%83%87%e3%83%b3%e3%83%ac%e3%82%b9%e3%83%88%e3%83%a9%e3%83%b3-%e4%ba%ba%e5%bd%a2%e7%94%ba-%e4%bb%8a%e5%8d%8a-%e6%b1%a0%e4%b8%8a%e6%9c%ac%e9%96%80%e5%af%ba%e5%ba%97-%e8%a5%bf","status":"publish","type":"post","link":"https:\/\/one-foodie.com\/2199\/","title":{"rendered":"\u30ac\u30fc\u30c7\u30f3\u30ec\u30b9\u30c8\u30e9\u30f3 \u4eba\u5f62\u753a \u4eca\u534a \u6c60\u4e0a\u672c\u9580\u5bfa\u5e97 \/ \u897f\u99ac\u8fbc\u3001\u6c60\u4e0a"},"content":{"rendered":"