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【PHP】 COOKIE加密函数

作者:天远 / 发布于2014/10/10/ 491

示例用法： $eC = new encodeCookie; $e = $eC->encodeC ( md5 ('password') ); $d = $eC->decodeC ( $e ); echo "Original Cookie value : ".$d; echo "

"; echo "Encoded Cookie value : ".$e;


	define ("DOMAIN", "54dev.com");
	define ("PATH", "/");
	define ("COOKIEID", "encodeCookie");
	define ("COOKIEKEY", "raz"); // max 5 chars is good

	/**
	* class encodeCookie
	*
	* encode cookies before you send them
	*
	*/
	class encodeCookie {
	/**
	* encodeCookie::$config
	*
	* configuration
	*
	*/
	 var $config;

	/**
	* encodeCookie::encodeCookie()
	*
	* constructor
	*
	*/
	function encodeCookie () {
	 $this->config = array ();
	 $this->config['cookie_key'] = COOKIEKEY;
	 $this->config['cookie'] = array (
	 'cookie_id' => COOKIEID,
	 'cookie_path' => PATH,
	 'cookie_domain' => DOMAIN,
	 );
	}

	/**
	* encodeCookie::set_Cookie()
	*
	* sets the cookie
	*
	* @param string $value
	* @param integer $sticky
	*/
	function set_Cookie ($name, $value = "", $sticky = 0) {

	 $exipres = "";

	 if ($sticky == 1) {
	 $expires = time() + 60*60*24*365;
	 }

	 $name = $this->config['cookie']['cookie_id'].$name;
	 $newValue = $this->encodeC ($value);

	 @setcookie($name, urlencode($newValue), $expires, $this->config['cookie']['cookie_path'], $this->config['cookie']['cookie_domain']);
	}

	/**
	* encodeCookie::get_Cookie()
	*
	* gets the cookie
	*
	*/
	function get_Cookie ($name) {

	 if ( isset( $_COOKIE[$this->config['cookie']['cookie_id'].$name] ) ) {
	 $cookie = urldecode ( $_COOKIE[$this->config['cookie']['cookie_id'].$name] );
	 return $this->decodeC ($cookie);
	 } else {
	 return FALSE;
	 }

	}

	/**
	* encodeCookie::encodeC()
	*
	* encodes the cookie
	*
	*/
	function encodeC ($cookie) {

	 $newcookie = array ();
	 $cookie = base64_encode ($cookie);

	 for ( $i=0; $i<=strlen ($cookie); $i++ ) {
	 $newcookie[ $i ] = ord ( $cookie[ $i ] ) * $this->encodeKey ();
	 }

	 $newcookie = implode ('.', $newcookie);

	return $newcookie;
	}

	/**
	* encodeCookie::decodeC()
	*
	* decodes the cookie
	*
	*/
	function decodeC ($oldcookie) {

	 $newcookie = array ();
	 $cookie = explode ('.', $oldcookie);

	 for ( $i=0; $i<=strlen ($oldcookie); $i++ ) {
	 $newcookie[ $i ] = chr ( $cookie[ $i ] / $this->encodeKey () );
	 }

	 $newcookie = implode ('', $newcookie);
	 $newcookie = base64_decode ($newcookie);

	return $newcookie;
	}

	/**
	* encodeCookie::encodeKey()
	*
	* encodes the key
	*
	*/
	function encodeKey () {
	 $newkey = 0;
	 for ( $i=0; $i<=strlen ( $this->config['cookie_key'] ); $i++ ) {
	 $newkey += ord ( $this->config['cookie_key'][ $i ] );
	 }
	return $newkey;
	}

	}

试试其它关键字

　加密函数　　 COOKIE加密　

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