Alert: This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness. Use update_post_caches() instead.

_prime_post_caches() WordPress Function

The prime_post_caches() function is used to prime the post caches. This function is important for performance because it helps to avoid cache misses when a user tries to access a post.

_prime_post_caches( array $ids, bool $update_term_cache = true, bool $update_meta_cache = true ) #

Adds any posts from the given IDs to the cache that do not already exist in cache.


Description

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See also


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Parameters

$ids

(array)(Required)ID list.

$update_term_cache

(bool)(Optional) Whether to update the term cache.

Default value: true

$update_meta_cache

(bool)(Optional) Whether to update the meta cache.

Default value: true


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Source

File: wp-includes/post.php

function _prime_post_caches( $ids, $update_term_cache = true, $update_meta_cache = true ) {
	global $wpdb;

	$non_cached_ids = _get_non_cached_ids( $ids, 'posts' );
	if ( ! empty( $non_cached_ids ) ) {
		$fresh_posts = $wpdb->get_results( sprintf( "SELECT $wpdb->posts.* FROM $wpdb->posts WHERE ID IN (%s)", implode( ',', $non_cached_ids ) ) );

		update_post_caches( $fresh_posts, 'any', $update_term_cache, $update_meta_cache );
	}
}


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Changelog

Changelog
VersionDescription
3.4.0Introduced.

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