', $form_html); } else { $form_html = str_replace('', $checkbox_html . PHP_EOL . '', $form_html); } // insert the checkbox just before the closing tag return $form_html; } /** * Process the form submission and subscribe the user if the checkbox was checked. * * Fires on the `scf_send_email` action after the contact form email is sent. * * @param string $recipient The email recipient. * @param string $topic The email subject. * @param string $message The email message body. * @param string $headers The email headers. * @param string $email The sender's email address (form submitter). * * @return bool */ public function process($recipient, $topic, $message, $headers, $email) { // was sign-up checkbox checked? if (! $this->triggered()) { return false; } $parser = new MC4WP_Field_Guesser($this->get_data()); $data = $parser->combine(['guessed', 'namespaced']); // use the email from the action parameter if not found via field guesser if (empty($data['EMAIL']) && ! empty($email)) { $data['EMAIL'] = $email; } // do nothing if no email was found if (empty($data['EMAIL'])) { $this->get_log()->warning(sprintf('%s > Unable to find EMAIL field.', $this->name)); return false; } return $this->subscribe($data); } /** * Are the required dependencies for this integration installed? * * @return bool */ public function is_installed() { return function_exists('simple_contact_form'); } /** * Returns the UI elements to show on the settings page. * * Removes 'implicit' since this integration uses an explicit checkbox approach. * * @since 4.9.0 * @return array */ public function get_ui_elements() { return array_diff(parent::get_ui_elements(), ['implicit']); } }