add_submenu_page

Add submenu into menu page based on first fourth parameter of add_menu_pagemenu's slug.

function aa()
{
	add_menu_page("halo", "tes aja", "edit_users", "kolak", "asa", "", 3);
	add_submenu_page("kolak", "lahhhhh", "loh heh", "edit_users", "waaaww", "asa", 1);
}
add_action('admin_menu', 'aa');

function asa(){
	echo "Hello World";
}