/** * Filters mail header injection, html, ... * @param string $unfiltered_value */ static function filter($unfiltered_value) { $mail_filtered_value = preg_replace('/(%0A|%0D|content-type:|to:|cc:|bcc:)/i', '', $unfiltered_value); return stripslashes(wp_filter_nohtml_kses(Affiliates_Utility::filter_xss(trim(strip_tags($mail_filtered_value))))); }