Question

clean_attachment_cache( int $id,  bool $clean_terms = false )

Will clean the attachment in the cache.

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description

Cleaning means delete from the cache. Optionally will clean the term object cache associated with the attachment ID.

This function will not run if $_wp_suspend_cache_invalidation is not empty.

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参数

$id

(int) (Required) The attachment ID in the cache to clean.

$clean_terms

(bool) (Optional) Whether to clean terms cache.

Default value: false

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源代码

File: wp-includes/post.php

function clean_attachment_cache( $id, $clean_terms = false ) {
	global $_wp_suspend_cache_invalidation;

	if ( !empty($_wp_suspend_cache_invalidation) )
		return;

	$id = (int) $id;

	wp_cache_delete($id, 'posts');
	wp_cache_delete($id, 'post_meta');

	if ( $clean_terms )
		clean_object_term_cache($id, 'attachment');

	/**
	 * Fires after the given attachment's cache is cleaned.
	 *
	 * @since 3.0.0
	 *
	 * @param int $id Attachment ID.
	 */
	do_action( 'clean_attachment_cache', $id );
}

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更新日志

Version	description
3.0.0	Introduced.

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相关函数

Uses

• wp-includes/cache.php: wp_cache_delete()
• wp-includes/taxonomy.php: clean_object_term_cache()
• wp-includes/plugin.php: do_action()
• wp-includes/post.php: clean_attachment_cache

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Used By

• wp-admin/includes/media.php: wp_media_attach_action()

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User Contributed Notes