Session Handling In PHP

Here I am posting basic function which are used for maintain session in PHP 

1. To Start/Open session

  session_start();

2. To set variable in session

  $_SESSION['variable_name'] = $value;

3. To remove all variable from session
 

  session_unset();

4. To destroy session

  session_destroy();

For getting more information read session handling function in PHP manual.