How to detect whether the user is on a specific menu?

Question

I am assigning a php module on different menus on my Joomla website, but I want the module to show different data when loaded on different menu pages.

Example : There is parent menu Home and three sub-menus, Sub-menu1, Sub-menu2 and Sub-menu3.

When user browses sub-menu1 page, the module should load "Welcome to Sub-menu1" and when the user is on sub-menu2 page, the module should load "Welcome to sub-menu2" and so on. I have around 200 sub-menu pages on my Joomla website and I don't want to assign 200 individual php modules for them. I guess it would require an IF/ELSE condition but are there any specific ID's allotted to the Joomla menus? If yes, how can I retrieve the data (menu IDs) while loading the module and use the IF/ELSE condition?

P.S I have already imported the Joomla CMS (Joomla 3.4.8) using this :

define( '_JEXEC', 1 );
define( 'JPATH_BASE', realpath(dirname(__FILE__).'/' ));  
require_once ( JPATH_BASE .'/includes/defines.php' );
require_once ( JPATH_BASE .'/includes/framework.php' );
$app = JFactory::getApplication('site');

Help would be appreciated!

Answer 1

You can use the following to display the desired message:

$app   = JFactory::getApplication(); exist
$menu  = $app->getMenu();
$title = $menu->getActive()->title;

echo 'Welcome to ' . $title;

Answer 2

Use the input given to the application that ultimately controls which page is displayed and therefore which sub-menu is shown

This may not be the "Joomla" way to do things I am relatively new to Joomla anyway use the:

JFactory::getApplication()->input

Object documentation on this JInput object can be found on the Joomla document site but if in doubt there are your standard php debugging tools like

var_dump($var)