public static function get_url($key, $utm_content = false, $utm_term = false, $utm_medium = false)
{
if (!isset(self::$urls[$key])) {
return '';
}
$url = self::$urls[$key];
// return url if no arguments
if (!$utm_content) {
return $url;
}
// add utm content
self::$utm_content = $utm_content;
// use key for term, if no term isset
if (!$utm_term) {
$utm_term = $key;
}
self::$utm_term = $utm_term;
// apply medium only if medium isset
if ($utm_medium) {
self::set_medium($utm_medium);
}
// apply arguments
$url = self::apply_analytics_arguments_to_url($url);
return $url;
}
