wp_cache_delete() │ WP 2.0.0

Removes the cache contents matching key and group.

Uses: WP_Object_Cache()

Used By: clean_user_cache(), clean_post_cache(), update_metadata()

No Hooks.

Return

true|false. True on successful removal, false on failure.

Usage

wp_cache_delete( $key, $group );

$key(int|string) (required): What the contents in the cache are called.
$group(string): Where the cache contents are grouped.
Default: ''

Examples

#1 Delete the previously set cache

This is a code snippet from the function clean_post_cache(). Here we remove cache of post 23, which was set into the 'posts' and 'post_meta' groups:

$post_id = 23;
wp_cache_delete( $post_id, 'posts' );
wp_cache_delete( $post_id, 'post_meta' );

Notes

See: WP_Object_Cache::delete()
Global. WP_Object_Cache. $wp_object_cache Object cache global instance.

Changelog

Since 2.0.0

Introduced.

`wp_cache_delete() wp cache delete` code ^{WP 6.5.2}

wp-includes/cache.php

function wp_cache_delete( $key, $group = '' ) {
	global $wp_object_cache;

	return $wp_object_cache->delete( $key, $group );
}