Question

wp_update_attachment_metadata( int $post_id,  array $data )

Update metadata for an attachment.

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description

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参数

$post_id

(int) (Required) Attachment ID.

$data

(array) (Required) Attachment data.

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返回值

(int|bool) False if $post is invalid.

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源代码

File: wp-includes/post.php

function wp_update_attachment_metadata( $post_id, $data ) {
	$post_id = (int) $post_id;
	if ( !$post = get_post( $post_id ) )
		return false;

	/**
	 * Filters the updated attachment meta data.
	 *
	 * @since 2.1.0
	 *
	 * @param array $data    Array of updated attachment meta data.
	 * @param int   $post_id Attachment ID.
	 */
	if ( $data = apply_filters( 'wp_update_attachment_metadata', $data, $post->ID ) )
		return update_post_meta( $post->ID, '_wp_attachment_metadata', $data );
	else
		return delete_post_meta( $post->ID, '_wp_attachment_metadata' );
}

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更新日志

Version	description
2.1.0	Introduced.

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相关函数

Uses

• wp-includes/plugin.php: apply_filters()
• wp-includes/post.php: wp_update_attachment_metadata
• wp-includes/post.php: update_post_meta()
• wp-includes/post.php: delete_post_meta()
• wp-includes/post.php: get_post()

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Used By

• wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::import_theme_starter_content()
• wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php: WP_REST_Attachments_Controller::create_item()
• wp-admin/includes/class-wp-site-icon.php: WP_Site_Icon::insert_attachment()
• wp-admin/includes/ajax-actions.php: wp_ajax_crop_image()
• wp-admin/includes/image-edit.php: wp_restore_image()
• wp-admin/includes/image-edit.php: wp_save_image()
• wp-admin/includes/image.php: wp_generate_attachment_metadata()
• wp-admin/includes/media.php: media_handle_upload()
• wp-admin/includes/media.php: media_handle_sideload()
• wp-admin/includes/post.php: edit_post()
• wp-admin/includes/ajax-actions.php: wp_ajax_save_attachment()
• wp-admin/custom-header.php: Custom_Image_Header::insert_attachment()
• wp-admin/custom-header.php: Custom_Image_Header::step_2()
• wp-admin/custom-background.php: Custom_Background::handle_upload()
• wp-includes/media.php: wp_maybe_generate_attachment_metadata()
• wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::mw_newMediaObject()
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User Contributed Notes