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wordpress函数get_post_thumbnail_id()用法示例

get_post_thumbnail_id( int|WP_Post $post = null )

Retrieve post thumbnail ID.


描述


参数

$post

(int|WP_Post)
(Optional)
Post ID or WP_Post object. Default is global $post.

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Default value: null


返回值

(string|int) Post thumbnail ID or empty string.


源代码

File: wp-includes/post-thumbnail-template.php

function get_post_thumbnail_id( $post = null ) {
	$post = get_post( $post );
	if ( ! $post ) {
		return '';
	}
	return get_post_meta( $post->ID, '_thumbnail_id', true );
}

更新日志

Version 描述
4.4.0 $post can be a post ID or WP_Post object.
2.9.0 Introduced.

相关函数

Uses

  • wp-includes/post.php:
    get_post_meta()
  • wp-includes/post.php:
    get_post()

Used By

  • wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php:
    WP_REST_Posts_Controller::prepare_links()
  • wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php:
    WP_REST_Posts_Controller::prepare_item_for_response()
  • wp-includes/post-thumbnail-template.php:
    get_the_post_thumbnail_caption()
  • wp-includes/embed.php:
    get_oembed_response_data_rich()
  • wp-includes/post-thumbnail-template.php:
    get_the_post_thumbnail_url()
  • wp-admin/includes/media.php:
    edit_form_image_editor()
  • wp-admin/includes/media.php:
    get_media_item()
  • wp-includes/post-thumbnail-template.php:
    has_post_thumbnail()
  • wp-includes/post-thumbnail-template.php:
    update_post_thumbnail_cache()
  • wp-includes/post-thumbnail-template.php:
    get_the_post_thumbnail()
  • wp-includes/post-template.php:
    prepend_attachment()
  • wp-includes/media.php:
    wp_prepare_attachment_for_js()
  • wp-includes/media.php:
    wp_playlist_shortcode()
  • wp-includes/class-wp-xmlrpc-server.php:
    wp_xmlrpc_server::mw_getPost()
  • wp-includes/class-wp-xmlrpc-server.php:
    wp_xmlrpc_server::mw_getRecentPosts()
  • wp-includes/class-wp-xmlrpc-server.php:
    wp_xmlrpc_server::_prepare_post()
  • Show 11 more used by
    Hide more used by


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    Contributed by Codex

    Show all attachments for the current post except the Featured Image
    To get all post attachments except the Featured Image, you can use this function with something like get_posts().

    Do this inside The_Loop (where $post->ID is available).

    
    $args = array(
    	'post_type'   => 'attachment',
    	'numberposts' => -1,
    	'post_status' => 'any',
    	'post_parent' => $post->ID,
    	'exclude'     => get_post_thumbnail_id(),
    );
    
    $attachments = get_posts( $args );
    
    if ( $attachments ) {
    	foreach ( $attachments as $attachment ) {
    		echo apply_filters( 'the_title', $attachment->post_title );
    		the_attachment_link( $attachment->ID, false );
    	}
    }
    

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