WordPress at a glance

clean_post_cache() WP 1.0

Will clean the post in the cache.

Cleaning means delete from the cache of the post. Will call to clean the term object cache associated with the post ID.

This function not run if $_wp_suspend_cache_invalidation is not empty. See wp_suspend_cache_invalidation().

Hooks from the function
Return

Null. Nothing.

Usage

clean_post_cache( $post );
$post(int/WP_Post) (required)
Post ID or post object to remove from the cache.

Notes

  • Global. true/false. $_wp_suspend_cache_invalidation

Changelog

Since 2.0.0 Introduced.

Code of clean post cache: wp-includes/post.php WP 5.2.2

<?php
function clean_post_cache( $post ) {
	global $_wp_suspend_cache_invalidation;

	if ( ! empty( $_wp_suspend_cache_invalidation ) ) {
		return;
	}

	$post = get_post( $post );
	if ( empty( $post ) ) {
		return;
	}

	wp_cache_delete( $post->ID, 'posts' );
	wp_cache_delete( $post->ID, 'post_meta' );

	clean_object_term_cache( $post->ID, $post->post_type );

	wp_cache_delete( 'wp_get_archives', 'general' );

	/**
	 * Fires immediately after the given post's cache is cleaned.
	 *
	 * @since 2.5.0
	 *
	 * @param int     $post_id Post ID.
	 * @param WP_Post $post    Post object.
	 */
	do_action( 'clean_post_cache', $post->ID, $post );

	if ( 'page' == $post->post_type ) {
		wp_cache_delete( 'all_page_ids', 'posts' );

		/**
		 * Fires immediately after the given page's cache is cleaned.
		 *
		 * @since 2.5.0
		 *
		 * @param int $post_id Post ID.
		 */
		do_action( 'clean_page_cache', $post->ID );
	}

	wp_cache_set( 'last_changed', microtime(), 'posts' );
}

Related Functions

From tag: cache (caching)

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