php：基于cookie的会话 [英] php: cookie based sessions
问题描述
有没有任何机构有关于如何集成基于cookie的会话系统的任何信息/链接？我使用的文件/ mysql，我目前使用memcached。我想玩apc会议，但我认为我会去饼干，只是我不知道很多。
does any body have any info/links as to how to integrate a cookie based session system? i've used file/mysql, and am currently using memcached. i wanted to play with apc sessions, but thought i'd give a go at cookies, only i don't know much about it.
我想我会有要写自己的会话处理程序类？
i imagine i'd have to write my own session handler class?
推荐答案
在PHP会话数据通常存储在一个文件中。存储在cookie中的唯一的事情是会话标识符。当启用会话并找到有效的会话cookie时，PHP会将用户会话数据从文件加载到超级全局，名为funnily enough SESSION。
In PHP session data is usually stored in a file. The only thing stored in the cookie is a session identifier. When sessions are enabled and a valid session cookie is found, PHP loads the users session data from the file into a super global called funnily enough SESSION.
基本会话 session_start（）; 在任何文本发送到浏览器之前调用。那么使用简单的数组索引，将项目添加到会话对象或从会话对象中删除例如
Basic sessions are started using session_start(); called before any text is sent to the browser. then items are added to or removed from the session object using simple array indexing eg.
$_SESSION['favcolour'] = 'blue';
稍后...
$favcolour = $_SESSION['favcolour'];
只能通过调用
set_cookie('favcolour','blue'[,other params]);
，然后从任何文本发送到浏览器，然后从超级全球的
before any text is sent to the browser, then retrieved from the cookie superglobal
$favcolour = $_COOKIE['favcolour'];
您不需要调用 session_start（）如果只执行cookie的会话。
you don't need to call session_start() if doing cookie only sessions.
可选的[，其他params]更高级，可以在这里阅读 http://www.php.net/manual/en/function.setcookie.php
the optional [,other params] are more advanced and can be read about here http://www.php.net/manual/en/function.setcookie.php
会话可以成为一个非常复杂的讨论，我建议在他们做一些轻的工作，然后扩大你的知识。
Sessions can become a very complex discussion, I'd suggest doing some light work in them and then expand your knowledge.
DC
您想了解的有关PHP会话的所有信息
all you ever wanted to know about PHP sessions
http://www.php.net/manual/en/book.session.php
DC
要重用PHP的会话处理代码，您需要使用 session_set_save_handler 然后在该处理程序中完全没有。
To reuse PHP's session handling code you will need to add a write handler using session_set_save_handler and then do exactly nothing in that handler. That's because its called after the output to the browser is closed therefore you cannot send anything to the browser.
在将非标题数据写入浏览器之前，使用set_cookie函数和存储$ _SESSION数组的内容（序列化和加密后）转换为cookie。当应用程序启动时，您可以读取cookie unserialise它并将其放入$ _SESSION数组。
Before writing non header data to the browser use the set_cookie functions and store the contents of the $_SESSION array (after serialising and encrypting) into a cookie. when the applications start you can read the cookie unserialise it and put it into the $_SESSION array.
这是一个快速提示，我从来没有做过，我喜欢写我所有的自己的cookie代码。可能有一些gotcha的，但它不难的几个测试应该找到任何gotcha的。
That's a quick hint at what to do as I have never done it, I prefer to write all my own cookie code. There may be some gotcha's but its not hard a few tests should find any gotcha's.
DC
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