/**
* Returns text with {variables} replaced.
*
* @param string $string
* @param array $additional_replacements
* @param array $list_ids Array of list ID's (needed if {subscriber_count} is set
* @param string $output
*
* @return string $text The text with {variables} replaced.
* replaced.
*/
public static function replace_variables($string, $additional_replacements = array(), $list_ids = array(), $output = 'string')
{
self::$replacement_output = $output;
// replace general vars
$replacements = array('{ip}' => self::get_client_ip(), '{current_url}' => mc4wp_get_current_url(), '{current_path}' => !empty($_SERVER['REQUEST_URI']) ? esc_html($_SERVER['REQUEST_URI']) : '', '{date}' => date('m/d/Y'), '{time}' => date('H:i:s'), '{language}' => defined('ICL_LANGUAGE_CODE') ? ICL_LANGUAGE_CODE : get_locale(), '{email}' => self::get_known_email(), '{user_email}' => '', '{user_firstname}' => '', '{user_lastname}' => '', '{user_name}' => '', '{user_id}' => '');
// setup replacements for logged-in users
if (is_user_logged_in() && ($user = wp_get_current_user()) && $user instanceof WP_User) {
// logged in user, replace vars by user vars
$replacements['{user_email}'] = $user->user_email;
$replacements['{user_firstname}'] = $user->first_name;
$replacements['{user_lastname}'] = $user->last_name;
$replacements['{user_name}'] = $user->display_name;
$replacements['{user_id}'] = $user->ID;
}
// merge with additional replacements
$replacements = array_merge($replacements, $additional_replacements);
// subscriber count? only fetch these if the tag is actually used
if (stripos($string, '{subscriber_count}') !== false) {
$mailchimp = new MC4WP_MailChimp();
$subscriber_count = $mailchimp->get_subscriber_count($list_ids);
$replacements['{subscriber_count}'] = $subscriber_count;
}
// encode replacements when output type is set to 'url'
if (self::$replacement_output === 'url') {
$replacements = urlencode_deep($replacements);
}
// perform the replacement
$string = str_ireplace(array_keys($replacements), array_values($replacements), $string);
// replace dynamic variables
if (stristr($string, '{data_') !== false) {
$string = preg_replace_callback('/\\{data_([\\w-.]+)( default=\\"([^"]*)\\"){0,1}\\}/', array('MC4WP_Tools', 'replace_request_data_variables'), $string);
}
return $string;
}
