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php Cookies操作类(附源码)

WBOY
WBOY原创
2016-07-25 08:55:241388浏览
  2. /** Cookies class 保存,读取,更新,清除cookies数据。可设置前缀。强制超时。数据可以是字符串,数组,对象等。
  3. * Date: 2013-12-22
  4. * Author: fdipzone
  5. * Ver: 1.0
  6. * Edit: bbs.it-home.org
  7. * Func:
  8. * public set 设置cookie
  9. * public get 读取cookie
  10. * public update 更新cookie
  11. * public clear 清除cookie
  12. * public setPrefix 设置前缀
  13. * public setExpire 设置过期时间
  14. * private authcode 加密/解密
  15. * private pack 将数据打包
  16. * private unpack 将数据解包
  17. * private getName 获取cookie name,增加prefix处理
  18. */
  20. class Cookies{ // class start
  21. private $_prefix = ''; // cookie prefix
  22. private $_securekey = 'ekOt4_Ut0f3XE-fJcpBvRFrg506jpcuJeixezgPNyALm'; // encrypt key
  23. private $_expire = 3600; // default expire
  25. /** 初始化
  26. * @param String $prefix cookie prefix
  27. * @param int $expire 过期时间
  28. * @param String $securekey cookie secure key
  29. */
  30. public function __construct($prefix='', $expire=0, $securekey=''){
  32. if(is_string($prefix) && $prefix!=''){
  33. $this->_prefix = $prefix;
  34. }
  36. if(is_numeric($expire) && $expire>0){
  37. $this->_expire = $expire;
  38. }
  40. if(is_string($securekey) && $securekey!=''){
  41. $this->_securekey = $securekey;
  42. }
  43. }
  45. /** 设置cookie
  46. * @param String $name cookie name
  47. * @param mixed $value cookie value 可以是字符串,数组,对象等
  48. * @param int $expire 过期时间
  49. */
  50. public function set($name, $value, $expire=0){
  52. $cookie_name = $this->getName($name);
  53. $cookie_expire = time() + ($expire? $expire : $this->_expire);
  54. $cookie_value = $this->pack($value, $cookie_expire);
  55. $cookie_value = $this->authcode($cookie_value, 'ENCODE', $this->_securekey);
  57. if($cookie_name && $cookie_value && $cookie_expire){
  58. setcookie($cookie_name, $cookie_value, $cookie_expire);
  59. }
  60. }
  62. /** 读取cookie
  63. * @param String $name cookie name
  64. * @return mixed cookie value
  65. */
  66. public function get($name){
  68. $cookie_name = $this->getName($name);
  70. if(isset($_COOKIE[$cookie_name])){
  72. $cookie_value = $this->authcode($_COOKIE[$cookie_name], 'DECODE', $this->_securekey);
  73. $cookie_value = $this->unpack($cookie_value);
  75. return isset($cookie_value[0])? $cookie_value[0] : null;
  77. }else{
  78. return null;
  79. }
  80. }
  82. /** 更新cookie,只更新内容,如需要更新过期时间请使用set方法
  83. * @param String $name cookie name
  84. * @param mixed $value cookie value
  85. * @return boolean
  86. */
  87. public function update($name, $value){
  88. $cookie_name = $this->getName($name);
  90. if(isset($_COOKIE[$cookie_name])){
  91. $old_cookie_value = $this->authcode($_COOKIE[$cookie_name], 'DECODE', $this->_securekey);
  92. $old_cookie_value = $this->unpack($old_cookie_value);
  94. if(isset($old_cookie_value[1]) && $old_cookie_vlaue[1]>0){ // 获取之前的过期时间
  96. $cookie_expire = $old_cookie_value[1];
  98. // 更新数据
  99. $cookie_value = $this->pack($value, $cookie_expire);
  100. $cookie_value = $this->authcode($cookie_value, 'ENCODE', $this->_securekey);
  102. if($cookie_name && $cookie_value && $cookie_expire){
  103. setcookie($cookie_name, $cookie_value, $cookie_expire);
  104. return true;
  105. }
  106. }
  107. }
  108. return false;
  109. }
  111. /** 清除cookie
  112. * @param String $name cookie name
  113. */
  114. public function clear($name){
  115. $cookie_name = $this->getName($name);
  116. setcookie($cookie_name);
  117. }
  119. /** 设置前缀
  120. * @param String $prefix cookie prefix
  121. */
  122. public function setPrefix($prefix){
  123. if(is_string($prefix) && $prefix!=''){
  124. $this->_prefix = $prefix;
  125. }
  126. }
  128. /** 设置过期时间
  129. * @param int $expire cookie expire
  130. */
  131. public function setExpire($expire){
  132. if(is_numeric($expire) && $expire>0){
  133. $this->_expire = $expire;
  134. }
  135. }
  137. /** 获取cookie name
  138. * @param String $name
  139. * @return String
  140. */
  141. private function getName($name){
  142. return $this->_prefix? $this->_prefix.'_'.$name : $name;
  143. }
  145. /** pack
  146. * @param Mixed $data 数据
  147. * @param int $expire 过期时间 用于判断
  148. * @return
  149. */
  150. private function pack($data, $expire){
  151. if($data===''){
  152. return '';
  153. }
  155. $cookie_data = array();
  156. $cookie_data['value'] = $data;
  157. $cookie_data['expire'] = $expire;
  158. return json_encode($cookie_data);
  159. }
  161. /** unpack
  162. * @param Mixed $data 数据
  163. * @return array(数据,过期时间)
  164. */
  165. private function unpack($data){
  166. if($data===''){
  167. return array('', 0);
  168. }
  170. $cookie_data = json_decode($data, true);
  171. if(isset($cookie_data['value']) && isset($cookie_data['expire'])){
  172. if(time() return array($cookie_data['value'], $cookie_data['expire']);
  173. }
  174. }
  175. return array('', 0);
  176. }
  178. /** 加密/解密数据
  179. * @param String $str 原文或密文
  180. * @param String $operation ENCODE or DECODE
  181. * @return String 根据设置返回明文活密文
  182. */
  183. private function authcode($string, $operation = 'DECODE'){
  184. $ckey_length = 4; // 随机密钥长度 取值 0-32;
  185. $key = $this->_securekey;
  187. $key = md5($key);
  188. $keya = md5(substr($key, 0, 16));
  189. $keyb = md5(substr($key, 16, 16));
  190. $keyc = $ckey_length ? ($operation == 'DECODE' ? substr($string, 0, $ckey_length): substr(md5(microtime()), -$ckey_length)) : '';
  192. $cryptkey = $keya.md5($keya.$keyc);
  193. $key_length = strlen($cryptkey);
  195. $string = $operation == 'DECODE' ? base64_decode(substr($string, $ckey_length)) : sprintf('%010d', 0).substr(md5($string.$keyb), 0, 16).$string;
  196. $string_length = strlen($string);
  198. $result = '';
  199. $box = range(0, 255);
  201. $rndkey = array();
  202. for($i = 0; $i $rndkey[$i] = ord($cryptkey[$i % $key_length]);
  203. }
  205. for($j = $i = 0; $i $j = ($j + $box[$i] + $rndkey[$i]) % 256;
  206. $tmp = $box[$i];
  207. $box[$i] = $box[$j];
  208. $box[$j] = $tmp;
  209. }
  211. for($a = $j = $i = 0; $i $a = ($a + 1) % 256;
  212. $j = ($j + $box[$a]) % 256;
  213. $tmp = $box[$a];
  214. $box[$a] = $box[$j];
  215. $box[$j] = $tmp;
  216. $result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256]));
  217. }
  219. if($operation == 'DECODE') {
  220. if((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26).$keyb), 0, 16)) {
  221. return substr($result, 26);
  222. } else {
  223. return '';
  224. }
  225. } else {
  226. return $keyc.str_replace('=', '', base64_encode($result));
  227. }
  228. }
  230. } // class end
  231. ?>
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2，演示示例 demo.php

  2. require 'Cookies.class.php';
  4. $type = isset($_GET['type'])? strtolower($_GET['type']) : '';
  6. if(!in_array($type, array('set','get','update','clear'))){
  7. exit('type not exists');
  8. }
  10. $obj = new Cookies('member', 10); // obj
  12. switch($type){
  14. case 'set': // 设置
  15. $data = array(
  16. 'name' => 'fdipzone',
  17. 'gender' => 'male'
  18. );
  19. $obj->set('me', $data, 5);
  20. echo 'set cookies';
  21. break;
  23. case 'get': // 读取
  24. $result = $obj->get('me');
  26. echo '
    ';
  27. print_r($result);
  28. echo '';
  30. echo 'get cookies';
  31. break;
  33. case 'update': // 更新
  34. $data = array(
  35. 'name' => 'angelababy',
  36. 'gender' => 'female'
  37. );
  38. $flag = $obj->update('me', $data);
  40. if($flag){
  41. echo 'update cookies success';
  42. }else{
  43. echo 'update cookies false';
  44. }
  46. break;
  48. case 'clear': // 清除
  49. $obj->clear('me');
  50. echo 'clear cookies';
  51. break;
  52. }
  53. ?>
复制代码

附，PHP Cookies操作类的源码下载地址



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