Check user is login or not(Authentication) in joomla

you can check if user is login or not in joomla.

$user = JFactory::getUser();

if ($user->get('guest') == 1)

{

       echo “Not login”;

}

Else

{

   Echo “Loged user”;

}

use of session in joomla

use of session in joomla check following example

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define session in joomla

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$session = JFactory::getSession();

set session variable in joomla

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$session->set(‘name’,value); //set session

get session variable which set before in joomla

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$session->get(‘name’,value); // get session       

Hierarchy of Joomla component

You can see this example for Hierarchy of joomla component structure.

Example:

->com_gallary

                ->create Entry file same as component name like gallery.Php (Not optional)

                ->create Controller file like controller.php (Not optional)

                ->create models folder(optional if need model)(Create multiple models)

                                ->create model file  which name is same as controller name like gallery.php

                                   u can create multiple model in this folder with Controller name