PHP FrontendNavigation::getURLForExtraId示例

 /**
  * Fetch an URL based on an extraId
  * 	syntax: {$var|geturlforextraid:extraId[:language]}
  *
  * @param string $var The string passed from the template.
  * @param int $extraId The id of the extra.
  * @param string[optional] $language The language to use, if not provided we will use the loaded language.
  * @return string
  */
 public static function getURLForExtraId($var, $extraId, $language = null)
 {
     $var = (string) $var;
     $extraId = (int) $extraId;
     $language = $language !== null ? (string) $language : null;
     // return url
     return FrontendNavigation::getURLForExtraId($extraId, $language);
 }