   #PHP Manual Session handling functions session_cache_expire
   session_decode

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                             session_cache_limiter

   (PHP 4 >= 4.0.3)
   session_cache_limiter -- Get and/or set the current cache limiter

Description

   string session_cache_limiter ( [string cache_limiter])

   session_cache_limiter() returns the name of the current cache limiter.
   If cache_limiter is specified, the name of the current cache limiter
   is changed to the new value.

   The cache limiter defines which cache control HTTP headers are sent to
   the client. These headers determine the rules by which the page
   content may be cached by the client and intermediate proxies. Setting
   the cache limiter to nocache disallows any client/proxy caching. A
   value of public permits caching by proxies and the client, whereas
   private disallows caching by proxies and permits the client to cache
   the contents.

   In private mode, the Expire header sent to the client may cause
   confusion for some browsers, including Mozilla. You can avoid this
   problem by using private_no_expire mode. The expire header is never
   sent to the client in this mode.

     Note: private_no_expire was added in PHP 4.2.0.

   The cache limiter is reset to the default value stored in
   session.cache_limiter at request startup time. Thus, you need to call
   session_cache_limiter() for every request (and before session_start()
   is called).

   Example 1. session_cache_limiter() example
   <?php
   /* set the cache limiter to 'private' */
   session_cache_limiter('private');
   $cache_limiter = session_cache_limiter();
   echo "The cache limiter is now set to $cache_limiter<p>";
   ?>

   Also see the session.cache_limiter configuration directive.
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