function getTypes()
    {
        $t = array();
        foreach ($this->getElements('xrd:Type') as $elem) {
            $c = $this->parser->content($elem);
            if ($c) {
                $t[] = $c;
            }
        }
        return $t;
    }
function getTypes()
    {
        $t = array();
        foreach ($this->getElements('xrd:Type') as $elem) {
            $c = $this->parser->content($elem);
            if ($c) {
                $t[] = $c;
            }
        }
        return $t;
    }
function getTypes ( ) { $ t = array ( ) ; foreach ( $ this -> getElements ( 'xrd:Type' ) as $ elem ) { $ c = $ this -> parser -> content ( $ elem ) ; if ( $ c ) { $ t [ ] = $ c ; } } return $ t ; }
Return the URIs in the "Type" elements, if any, of this Service
element.

@return array $type_uris An array of Type URI strings.
Return the URIs in the Type elements if any of this Service element .