session_decode() - php 会话函数session
session_decode()
(PHP 4, PHP 5, PHP 7)
解码会话数据
说明
session_decode(string $data): boolsession_decode()对$data参数中的已经序列化的会话数据进行解码,并且使用解码后的数据填充$_SESSION 超级全局变量。
请注意,这里的反序列化方法不同于unserialize()函数。序列化方法是 PHP 内置的,并且可以通过session.serialize_handler配置项进行修改。
参数
$data编码后的数据
返回值
成功时返回TRUE
,或者在失败时返回FALSE
。
参见
session_encode()
将当前会话数据编码为一个字符串- session.serialize_handler
I noticed that the posted solutions for manually decoding sessions are not perfect, so I've contributed a more robust solution. The preg_match solution can never work. It's not so hard to find a case that might break unserialization. In the case of jason-joeymail is breaks on: Below you can find my solution. It doesn't use a regular expression but rather the reversibility of the serialize operation and the 'feature' that serialize ignores all further input when it thinks it's done. It's by no means a beautiful or particularly fast solution but it is a more robust solution. I've added a deserializer for "php" and "php_binary". It should be trivial to add one for "wddx". Usage:
Becarful using this if you are trying to switch out of an existing session rather than load one into a clean slate. session_decode doesn't destroy the existing session data, it will over write it if there is a session variable of the same name, but if the names don't clash the existing session variables will hang around. I have yet to find a better solution than session_destroy() session_start() session_decode(....); ----------------------------------------- To explain what I'm talking about
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