Get and/or set the current cache limiter (original) (raw)
session_cache_limiter
(PHP 4 >= 4.0.3, PHP 5, PHP 7)
session_cache_limiter — Get and/or set the current cache limiter
Description
session_cache_limiter ([ string $cache_limiter ] ) : string
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. TheExpire header is never sent to the client in this mode.
Setting the cache limiter to '' will turn off automatic sending of cache headers entirely.
The cache limiter is reset to the default value stored insession.cache_limiter at request startup time. Thus, you need to callsession_cache_limiter() for every request (and before session_start() is called).
Parameters
cache_limiter
If cache_limiter is specified, the name of the current cache limiter is changed to the new value.
Possible values
| Value | Headers sent |
|---|---|
| public | |
| private_no_expire | |
| private | |
| nocache |
Return Values
Returns the name of the current cache limiter.
Examples
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
";
?> `