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PHP Sessions

• session.auto_start : specifies whether the session module starts a session automatically on request startup. Defaults to 0 (disabled).
• session.name : specifies the name of the session which is used as cookie name. It should only contain alphanumeric characters. Defaults to PHPSESSID.
• session.save_handler : defines the name of the handler which is used for storing and retrieving data associated with a session. Defaults to files.
• session.save_path : defines the argument which is passed to the save handler. If you choose the default files handler, this is the path where the files are created. Defaults to /tmp.
• session.use_cookies : specifies whether the module will use cookies to store the session id on the client side. Defaults to 1 (enabled).
• session.use_only_cookies : specifies whether the module will only use cookies to store the session id on the client side. Enabling this setting prevents attacks involved passing session ids in URLs.
• session.cookie_lifetime : specifies the lifetime of the cookie in seconds which is sent to the browser. The value 0 means "until the browser is closed." Defaults to 0.
• session.cookie_path : specifies path to set in session_cookie. Defaults to /.
• session.use_trans_sid : whether transparent sid support is enabled or not. Defaults to 0 (disabled).

session_start();

$_SESSION['username'] = 'John';

session_start();
 if ( isset ($_SESSION['username']))
		{
      echo"User : ".$_SESSION['username'];
     } 
		else
		{
       echo "Set the username";
         $_SESSION['username'] = 'John';
}

Step 5 - Clean and destroy session

• Call the unset() function to remove a variable from a session.session_destroy() function - be careful with it.
• session_destroy() function to remove all session data

 session_start();
  if (isset($_SESSION['username'])){
  echo "User : ".$_SESSION['username'];
  session_destroy();
   } 
   else
    {
    echo "Set the username";
     $_SESSION['username'] = 'John';
      } 

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Page last updated: May 31, 2012 14:45 PM