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post_thumbnail_id

apply_filters( ‘post_thumbnail_id’, int|false $thumbnail_id, int|WP_Post|null $post )

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Filters the post thumbnail ID.

Parameters

$thumbnail_idint|false
Post thumbnail ID or false if the post does not exist.
$postint|WP_Post|null
Post ID or WP_Post object. Default is global $post.

Source

return (int) apply_filters( 'post_thumbnail_id', $thumbnail_id, $post );

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Used byDescription
get_post_thumbnail_id()wp-includes/post-thumbnail-template.php

Retrieves the post thumbnail ID.

Changelog

VersionDescription
5.9.0Introduced.

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