PHP独立Session数据库存储操作类分享(5)

if (isset($_COOKIE[$full_cookiename]))
        {
            return $_COOKIE[$full_cookiename];
        }
        else
        {
            return  false;
        }
    }

public function set_cookie($name, $value = ”, $permanent = 1, $allowsecure = true)
    {

if ($permanent)
        {
            $expire = TIMENOW + 60 * 60 * 24 * 365;
        }
        else
        {
            $expire = 0;
        }

if ($_SERVER[‘SERVER_PORT'] == '443′)
        {
            // we're using SSL
            $secure = 1;
        }
        else
        {
            $secure = 0;
        }

// check for SSL
        $secure = ((REQ_PROTOCOL === ‘https' AND $allowsecure) ? true : false);

$name = $this->_config[‘cookie_prefix'] . $name;
        $filename = ‘N/A';
        $linenum = 0;

if (!headers_sent($filename, $linenum))
        { // consider showing an error message if there not sent using above variables?
            if ($value == ” AND strlen($this->_config[‘cookiepath']) > 1 AND strpos($this->_config[‘cookiepath'], ‘/') !== false)
            {
                // this will attempt to unset the cookie at each directory up the path.
                // ie, cookiepath = /test/abc/. These will be unset: /, /test, /test/, /test/abc, /test/abc/
                // This should hopefully prevent cookie conflicts when the cookie path is changed.
                $dirarray = explode(‘/', preg_replace(‘#/+$#', ”, $this->_config[‘cookiepath']));
                $alldirs = ”;
                foreach ($dirarray AS $thisdir)
                {
                    $alldirs .= "$thisdir";
                    if (!empty($thisdir))
                    { // try unsetting without the / at the end
                        setcookie($name, $value, $expire, $alldirs, $this->_config[‘cookiedomain'], $secure);
                    }
                    $alldirs .= "https://www.jb51.net/";
                    setcookie($name, $value, $expire, $alldirs, $this->_config[‘cookiedomain'], $secure);
                }
            }
            else
            {
                setcookie($name, $value, $expire, $this->_config[‘cookiepath'], $this->_config[‘cookiedomain'], $secure);
            }
        }
        else if (!DEBUG)
        {
            echo "can't set cookies";
        }
    }

private function _save()
        {
            $cleaned = $this->_build_query_array();