is_external() public static méthode

public static is_external ( string $url ) : boolean
$url string
Résultat boolean true if $path is an external url, false if relative or local. true if it's a subdomain (http://cdn.example.org = true)
 /**
  * Checks to see if the menu item is an external link so if my site is `example.org`, `google.com/whatever` is an external link. Helpful when creating rules for the target of a link
  * @api
  * @example
  * ```twig
  * <a href="{{ item.link }}" target="{{ item.is_external ? '_blank' : '_self' }}">
  * ```
  * @return bool
  */
 public function is_external()
 {
     if ($this->type() != 'custom') {
         return false;
     }
     return URLHelper::is_external($this->url);
 }