WordPress Version: 5.8
/**
* Registers navigation menu locations for a theme.
*
* @since 3.0.0
*
* @global array $_wp_registered_nav_menus
*
* @param string[] $locations Associative array of menu location identifiers (like a slug) and descriptive text.
*/
function register_nav_menus($locations = array())
{
global $_wp_registered_nav_menus;
add_theme_support('menus');
foreach ($locations as $key => $value) {
if (is_int($key)) {
_doing_it_wrong(__FUNCTION__, __('Nav menu locations must be strings.'), '5.3.0');
break;
}
}
$_wp_registered_nav_menus = array_merge((array) $_wp_registered_nav_menus, $locations);
}