What to Look For in PHP 5.4(jburrows.wordpress.com)

    if(extension_loaded('session'))
    {
        function ses_open($path, $name)
        {
            return TRUE;
        }
			
        function ses_close()
        {
            return TRUE;
        }
			
        function ses_read($id)
        {
            return (($GLOBALS['session'] = apc_fetch($id)) ? $GLOBALS['session'] : FALSE);
        }
			
        function ses_write($id, $data)
        {
            if(!isset($GLOBALS['session']) || $GLOBALS['session'] != $data)
            {
                if(apc_exists($id))
                {
                    apc_delete($id);
                }
                return apc_store($id, $data);
            }
            else
            {
                return TRUE;
            }
        }
			
        function ses_destroy($id)
        {
            unset($GLOBALS['session']);
            return apc_delete($id);
        }
			
        function ses_gc($max)
        {
            if(
                ($apc = apc_sma_info())
                &&
                ($apc['avail_mem'] / ($apc['num_seg'] * $apc['seg_size'])) < 0.25
            )
            {
                return apc_clear_cache('user');
            }
            else
            {
                return TRUE;
            }
        }
			
        ini_set('session.save_handler', 'user');
        session_set_save_handler('ses_open', 'ses_close', 'ses_read', 'ses_write', 'ses_destroy', 'ses_gc');
    }