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has_post_thumbnail( int|WP_Post $post = null )

Determines whether a post has an image attached.

Description

For more information on this and similar theme functions, check out the Conditional Tags article in the Theme Developer Handbook.

Parameters

$post

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

Default value: null

Return

(bool) Whether the post has an image attached.

Source

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

function has_post_thumbnail( $post = null ) {
	$thumbnail_id  = get_post_thumbnail_id( $post );
	$has_thumbnail = (bool) $thumbnail_id;

	/**
	 * Filters whether a post has a post thumbnail.
	 *
	 * @since 5.1.0
	 *
	 * @param bool             $has_thumbnail true if the post has a post thumbnail, otherwise false.
	 * @param int|WP_Post|null $post          Post ID or WP_Post object. Default is global `$post`.
	 * @param int|string       $thumbnail_id  Post thumbnail ID or empty string.
	 */
	return (bool) apply_filters( 'has_post_thumbnail', $has_thumbnail, $post, $thumbnail_id );
}

Changelog

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

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/has_post_thumbnail