时间:2021-07-01 10:21:17 帮助过:5人阅读
本文实例讲述了php实现cookie加密的方法。分享给大家供大家参考。具体实现方法如下:
代码如下:
<?php class Cookie { /** * 解密已经加密了的cookie * * @param string $encryptedText * @return string */ private static function _decrypt($encryptedText) { $key = Config::get('secret_key'); $cryptText = base64_decode($encryptedText); $ivSize = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB); $iv = mcrypt_create_iv($ivSize, MCRYPT_RAND); $decryptText = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $cryptText, MCRYPT_MODE_ECB, $iv); return trim($decryptText); } /** * 加密cookie * * @param string $plainText * @return string */ private static function _encrypt($plainText) { $key = Config::get('secret_key'); $ivSize = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB); $iv = mcrypt_create_iv($ivSize, MCRYPT_RAND); $encryptText = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $plainText, MCRYPT_MODE_ECB, $iv); return trim(base64_encode($encryptText)); } /** * 删除cookie * * @param array $args * @return boolean */ public static function del($args) { $name = $args['name']; $domain = isset($args['domain']) ? $args['domain'] : null; return isset($_COOKIE[$name]) ? setcookie($name, '', time() - 86400, '/', $domain) : true; } /** * 得到指定cookie的值 * * @param string $name */ public static function get($name) { return isset($_COOKIE[$name]) ? self::_decrypt($_COOKIE[$name]) : null; } /** * 设置cookie * * @param array $args * @return boolean */ public static function set($args) { $name = $args['name']; $value= self::_encrypt($args['value']); $expire = isset($args['expire']) ? $args['expire'] : null; $path = isset($args['path']) ? $args['path'] : '/'; $domain = isset($args['domain']) ? $args['domain'] : null; $secure = isset($args['secure']) ? $args['secure'] : 0; return setcookie($name, $value, $expire, $path, $domain, $secure); } }
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