public function url($file = null, $extra = null, $rewrite = true) {
        if ($extra === false && $rewrite === true) {
            list($extra, $rewrite) = [null, $extra];
        }
        return url()->to($file, $extra, true, $rewrite);
    }
public function url($file = null, $extra = null, $rewrite = true) {
        if ($extra === false && $rewrite === true) {
            list($extra, $rewrite) = [null, $extra];
        }
        return url()->to($file, $extra, true, $rewrite);
    }
public function url ( $ file = null , $ extra = null , $ rewrite = true ) { if ( $ extra === false && $ rewrite === true ) { list ( $ extra , $ rewrite ) = [ null , $ extra ] ; } return url ( ) -> to ( $ file , $ extra , true , $ rewrite ) ; }
GET COMPLETE URL
@param null $file
@param null $extra
@param bool $rewrite
@return string|Uri
@throws Exception
GET COMPLETE URL