get_post_thumbnail_id() WP 1.0

Retrieve post thumbnail ID.

Is the basis for: get_the_post_thumbnail(), has_post_thumbnail(), get_the_post_thumbnail_url()

Works based on: get_post_meta()

✈ 1 time = 0.00126s = very slow | 50000 times = 0.28s = very fast | PHP 7.1.5, WP 4.8.1

No Hooks.

Return

Int/String. Post thumbnail ID or empty string if the post does not exist.

Usage

get_post_thumbnail_id( $post );

$post(int/WP_Post): Post ID or WP_Post object.
Default: global $post

Changelog

Since 2.9.0	Introduced.
Since 4.4.0	`$post` can be a post ID or WP_Post object.

Code of get post thumbnail id: `wp-includes/post-thumbnail-template.php` ^{WP 5.4.2}

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

get_post_thumbnail_id() WP 1.0

Return

Usage

Changelog

Code of get post thumbnail id: `wp-includes/post-thumbnail-template.php` ^{WP 5.4.2}

Related Functions

From tag: Thumbnail (images)

More from category: Thumbnails

More from Template Tags: Post Thumbnails

get_post_thumbnail_id() WP 1.0

Return

Usage

Changelog

Code of get post thumbnail id: wp-includes/post-thumbnail-template.php WP 5.4.2

Related Functions

From tag: Thumbnail (images)

More from category: Thumbnails

More from Template Tags: Post Thumbnails

Code of get post thumbnail id: `wp-includes/post-thumbnail-template.php` ^{WP 5.4.2}