Cookies 操作類
功能：
1.保存，讀取，更新，清除cookies數據。
2.可設置前綴。
3.強制超時控制。
4.cookies數據可以是字符串，數組，對象等。
Cookies.class.php
<?php
/** Cookies class 保存,讀取,更新,清除cookies數據。可設置前綴。強制超時。數據可以是字符串,數組,對象等。
* Date: 2013-12-22
* Author: fdipzone
* Ver: 1.0
*
* Func:
* public set 設置cookie
* public get 讀取cookie
* public update 更新cookie
* public clear 清除cookie
* public setPrefix 設置前綴
* public setExpire 設置過期時間
* private authcode 加密/解密
* private pack 將數據打包
* private unpack 將數據解包
* private getName 獲取cookie name,增加prefix處理
*/
class Cookies{ // class start
private $_prefix = ''; // cookie prefix
private $_securekey = 'ekOt4_Ut0f3XE-fJcpBvRFrg506jpcuJeixezgPNyALm'; // encrypt key
private $_expire = 3600; // default expire
/** 初始化
* @param String $prefix cookie prefix
* @param int $expire 過期時間
* @param String $securekey cookie secure key
*/
public function __construct($prefix='', $expire=0, $securekey=''){
if(is_string($prefix) && $prefix!=''){
$this->_prefix = $prefix;
}
if(is_numeric($expire) && $expire>0){
$this->_expire = $expire;
}
if(is_string($securekey) && $securekey!=''){
$this->_securekey = $securekey;
}
}
/** 設置cookie
* @param String $name cookie name
* @param mixed $value cookie value 可以是字符串,數組,對象等
* @param int $expire 過期時間
*/
public function set($name, $value, $expire=0){
$cookie_name = $this->getName($name);
$cookie_expire = time() + ($expire? $expire : $this->_expire);
$cookie_value = $this->pack($value, $cookie_expire);
$cookie_value = $this->authcode($cookie_value, 'ENCODE', $this->_securekey);
if($cookie_name && $cookie_value && $cookie_expire){
setcookie($cookie_name, $cookie_value, $cookie_expire);
}
}
/** 讀取cookie
* @param String $name cookie name
* @return mixed cookie value
*/
public function get($name){
$cookie_name = $this->getName($name);
if(isset($_COOKIE[$cookie_name])){
$cookie_value = $this->authcode($_COOKIE[$cookie_name], 'DECODE', $this->_securekey);
$cookie_value = $this->unpack($cookie_value);
return isset($cookie_value[0])? $cookie_value[0] : null;
}else{
return null;
}
}
/** 更新cookie,只更新內容,如需要更新過期時間請使用set方法
* @param String $name cookie name
* @param mixed $value cookie value
* @return boolean
*/
public function update($name, $value){
$cookie_name = $this->getName($name);
if(isset($_COOKIE[$cookie_name])){
$old_cookie_value = $this->authcode($_COOKIE[$cookie_name], 'DECODE', $this->_securekey);
$old_cookie_value = $this->unpack($old_cookie_value);
if(isset($old_cookie_value[1]) && $old_cookie_vlaue[1]>0){ // 獲取之前的過期時間
$cookie_expire = $old_cookie_value[1];
// 更新數據
$cookie_value = $this->pack($value, $cookie_expire);
$cookie_value = $this->authcode($cookie_value, 'ENCODE', $this->_securekey);
if($cookie_name && $cookie_value && $cookie_expire){
setcookie($cookie_name, $cookie_value, $cookie_expire);
return true;
}
}
}
return false;
}
/** 清除cookie
* @param String $name cookie name
*/
public function clear($name){
$cookie_name = $this->getName($name);
setcookie($cookie_name);
}
/** 設置前綴
* @param String $prefix cookie prefix
*/
public function setPrefix($prefix){
if(is_string($prefix) && $prefix!=''){
$this->_prefix = $prefix;
}
}
/** 設置過期時間
* @param int $expire cookie expire
*/
public function setExpire($expire){
if(is_numeric($expire) && $expire>0){
$this->_expire = $expire;
}
}
/** 獲取cookie name
* @param String $name
* @return String
*/
private function getName($name){
return $this->_prefix? $this->_prefix.'_'.$name : $name;
}
/** pack
* @param Mixed $data 數據
查看本欄目
