public MarkupInterface::__toString()
Returns markup.
string The markup.
public function __toString();
© 2001–2016 by the original authors
Licensed under the GNU General Public License, version 2 and later.
Drupal is a registered trademark of Dries Buytaert.
https://api.drupal.org/api/drupal/core!lib!Drupal!Component!Render!MarkupInterface.php/function/MarkupInterface::__toString/8.1.x