Cache control by Zend. How does it work with website?

There is a configuration setting session.cache_limiter that controls the caching HTTP headers that will be sent with the response. The default setting here is nocache which sends

Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache

You overwrite all of these headers within your controller besides the Cache-Control-header (you only append your max-age=3600 setting here).

Possible solutions are:

1. changing the PHP configuration (session.cache_limiter) to e.g. none - but this could introduce problems to other PHP applications
2. set the session.cache_limiter on each request using session_cache_limiter()
3. overwrite the full Cache-Control-header in your controller with the designated string

The possible values for session.cache_limiter and session_cache_limiter() are:

none: no header will be sent

nocache:

Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache

private:

Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: private, max-age=10800, pre-check=10800

private_no_expire:

Cache-Control: private, max-age=10800, pre-check=10800

public:

Expires: pageload + 3 hours Cache-Control: public, max-age=10800

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Maarten Munning

Maarten Munning

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Answered on 9/22/17, 2:31 PM

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