Title: Clear cache question
Last modified: June 9, 2023

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# Clear cache question

 *  Resolved [Jacob N. Breetvelt](https://wordpress.org/support/users/opajaap/)
 * (@opajaap)
 * [3 years ago](https://wordpress.org/support/topic/clear-cache-question-2/)
 * Is there an api function so that other plugins can clear page cache?

Viewing 5 replies - 1 through 5 (of 5 total)

 *  [Alexander Guskov](https://wordpress.org/support/users/forcesail/)
 * (@forcesail)
 * [3 years ago](https://wordpress.org/support/topic/clear-cache-question-2/#post-16806895)
 * Hello Jacob,
   you could use hook clean_post_cache for it if wp_optimize supported
   it. I reporter it here and there is a work around:[https://wordpress.org/support/topic/clean_post_cache-hook/](https://wordpress.org/support/topic/clean_post_cache-hook/)
 *  Thread Starter [Jacob N. Breetvelt](https://wordpress.org/support/users/opajaap/)
 * (@opajaap)
 * [3 years ago](https://wordpress.org/support/topic/clear-cache-question-2/#post-16807124)
 * Thanx but i rather want to know what `Clear cache for all pages` from the menu
   bar does, e.g. what `https://betatest.opajaap.nl/?_wpo_purge=05e4529a24` does
 *  Plugin Support [vupdraft](https://wordpress.org/support/users/vupdraft/)
 * (@vupdraft)
 * [3 years ago](https://wordpress.org/support/topic/clear-cache-question-2/#post-16807217)
 * You can trigger a cache purge using WP-Optimize public functions.
 * Use `WP_Optimize()->get_page_cache()->purge();` to flush the whole cache.
 * Use `WPO_Page_Cache::delete_single_post_cache($post_id);` to purge a single post’s
   files.
 * Those cache options are available from WordPress action `plugins_loaded`.
 * (See WordPress actions order: [https://codex.wordpress.org/Plugin_API/Action_Reference](https://codex.wordpress.org/Plugin_API/Action_Reference))
 *  Thread Starter [Jacob N. Breetvelt](https://wordpress.org/support/users/opajaap/)
 * (@opajaap)
 * [3 years ago](https://wordpress.org/support/topic/clear-cache-question-2/#post-16807385)
 * Thanx. This works:
 *     ```
       	// WP Optimize cache
       	if ( class_exists( 'WP_Optimize' ) ) {
       		WP_Optimize()->get_page_cache()->purge();
       	}
       ```
   
 *  Plugin Support [vupdraft](https://wordpress.org/support/users/vupdraft/)
 * (@vupdraft)
 * [3 years ago](https://wordpress.org/support/topic/clear-cache-question-2/#post-16808512)
 * No problem, glad it helped!

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Clear cache question’ is closed to new replies.

 * ![](https://ps.w.org/wp-optimize/assets/icon-256x256.png?rev=1552899)
 * [WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance](https://wordpress.org/plugins/wp-optimize/)
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 * 5 replies
 * 3 participants
 * Last reply from: [vupdraft](https://wordpress.org/support/users/vupdraft/)
 * Last activity: [3 years ago](https://wordpress.org/support/topic/clear-cache-question-2/#post-16808512)
 * Status: resolved