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