$this->$key

class CI_Pagination {

	var $base_url			= ''; // The page we are linking to
	var $prefix				= ''; // A custom prefix added to the path.
	var $suffix				= ''; // A custom suffix added to the path.

	/**
	 * Constructor
	 *
	 * @access	public
	 * @param	array	initialization parameters
	 */
	public function __construct($params = array())
	{
		if (count($params) > 0)
		{
			$this->initialize($params);
		}

		if ($this->anchor_class != '')
		{
			$this->anchor_class = 'class="'.$this->anchor_class.'" ';
		}

		log_message('debug', "Pagination Class Initialized");
	}

	// --------------------------------------------------------------------

	/**
	 * Initialize Preferences
	 *
	 * @access	public
	 * @param	array	initialization parameters
	 * @return	void
	 */
	function initialize($params = array())
	{
		if (count($params) > 0)
		{
			foreach ($params as $key => $val)
			{
				if (isset($this->$key))  //比如$key='base_url'，则$this->$key=$this->base_url
				{
					$this->$key = $val;
				}
			}
		}
		
	}

}