124 lines
2.3 KiB
PHP
124 lines
2.3 KiB
PHP
<?php
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/**
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* MiniMVC
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*
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* Convention-based micro-framework for PHP
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*
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* @package miniMVC
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* @author Timothy J. Warren
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* @copyright Copyright (c) 2011 - 2012
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* @link https://github.com/aviat4ion/miniMVC
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* @license http://philsturgeon.co.uk/code/dbad-license
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*/
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// --------------------------------------------------------------------------
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namespace miniMVC;
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/**
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* Class to improve handling of PHP sessions
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*
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* @package miniMVC
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* @subpackage Libraries
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*/
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class Session {
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/**
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* Reference to session superglobal
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*
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* @var array
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*/
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protected $sess = array();
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/**
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* Reference to current instance
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*
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* @var Session
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*/
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protected static $instance;
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/**
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* Start a session
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*/
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protected function __construct()
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{
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session_start();
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// Create a re-generatable id using a hash of the user's ip address and user agent
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$session_id = sha1($_SERVER['REMOTE_ADDR'] . $_SERVER['HTTP_USER_AGENT']);
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// Save a reference to the session for later access
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$_SESSION[$session_id] = (isset($_SESSION[$session_id])) ?: array();
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$this->sess =& $_SESSION[$session_id];
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}
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// --------------------------------------------------------------------------
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/**
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* Set a session value
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*
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* @param string $key
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* @param mixed $val
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* @return void
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*/
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public function __set($key, $val)
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{
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$this->sess[$key] = $val;
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}
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// --------------------------------------------------------------------------
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/**
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* Retreive a session value
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*
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* @param string $key
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* @return mixed
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*/
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public function __get($key)
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{
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return $this->sess[$key];
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}
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// --------------------------------------------------------------------------
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/**
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* Destroy a session
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*
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* @return void
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*/
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public function destroy()
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{
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sess_destroy();
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}
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// --------------------------------------------------------------------------
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/**
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* Singleton getter function
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*
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* @return self
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*/
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public static function &get_instance()
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{
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if ( ! isset(self::$instance))
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{
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$class = __CLASS__;
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self::$instance = new $class;
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}
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return self::$instance;
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}
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// --------------------------------------------------------------------------
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/**
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* Magic function called when cloning an object
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*/
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public function __clone()
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{
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trigger_error('Clone is not allowed.', E_USER_ERROR);
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}
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}
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// End of session.php
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