How to get the id of the current menu item in Joomla 3?

Question

Joomla

It is necessary to highlight the current menu item where the user is located. Those. if the user has entered the gallery, then the gallery should be highlighted in the site header. From the front, I know how to implement it, but I'm not sure about the back.
There is a plan: when going to a certain page, get the ID of the current menu item and do a small check in the code: is this or that menu item active

Answer 1

$app = JFactory::getApplication();
$menu = $app->getMenu()->getActive()->id;
echo $menu;

https://stackoverflow.com/questions/19067435/jooml... Googling
kung fu, huh.