Title: [Plugin: WP Super Cache] Invalidate the cache?
Last modified: August 19, 2016

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# [Plugin: WP Super Cache] Invalidate the cache?

 *  754978
 * [17 years, 9 months ago](https://wordpress.org/support/topic/plugin-wp-super-cache-invalidate-the-cache/)
 * Hi,
 * I just installed wp super cache, and it’s pretty cool.
 * However, I’m using a Twitter plugin that checks for new tweets once in a while,
   and show them in my sidebar (on all pages).
 * What I’d like to do is to invalidate the cache each time that plugin finds new
   tweets. Invalidate the front page may be enough (having outdated tweets on post
   pages is not a big deal) but I’m thinking about invalidating everything.
 * Is there some PHP function calls I can add to the Twitter plugin to invalidate
   the cache?
 * Also, I have an other (not really related) question. There are 2 values for the
   expire time: wp-cache which is 1 hour by default, and wp super cache 6 hours 
   by default. What’s the difference between the two?

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/)
 * (@donncha)
 * [17 years, 9 months ago](https://wordpress.org/support/topic/plugin-wp-super-cache-invalidate-the-cache/#post-812341)
 * You could call ‘wp_cache_no_postid()’ when the plugin updates. That will clear
   the whole cache.
 *  Thread Starter 754978
 * [17 years, 9 months ago](https://wordpress.org/support/topic/plugin-wp-super-cache-invalidate-the-cache/#post-812587)
 * thank you!
    Note that it seems to be wp_cache_no_postid(0) (otherwise it causes
   an error).
 *  [KidBrax](https://wordpress.org/support/users/kidbrax/)
 * (@kidbrax)
 * [17 years, 9 months ago](https://wordpress.org/support/topic/plugin-wp-super-cache-invalidate-the-cache/#post-812758)
 * > There are 2 values for the expire time: wp-cache which is 1 hour by default,
   > and wp super cache 6 hours by default. What’s the difference between the two?
 * I was wondering this myself?
 *  [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/)
 * (@donncha)
 * [17 years, 9 months ago](https://wordpress.org/support/topic/plugin-wp-super-cache-invalidate-the-cache/#post-812762)
 * wp-cache is the php powered cache, super cache time is the expiry time of static
   html. The times are arbitrary, but if you find your cache directory filling up
   rapidly you should lower them.
 * BTW – this is a FAQ in the readme.txt..

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘[Plugin: WP Super Cache] Invalidate the cache?’ is closed to new replies.

 * 4 replies
 * 3 participants
 * Last reply from: [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/)
 * Last activity: [17 years, 9 months ago](https://wordpress.org/support/topic/plugin-wp-super-cache-invalidate-the-cache/#post-812762)
 * Status: not resolved

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