apply_filters( 'post_thumbnail_html', string $html, int $post_id, string $post_thumbnail_id, string|array $size, string $attr )

Parameters

$html

(string) The post thumbnail HTML.

$post_id

(int) The post ID.

$post_thumbnail_id

(string) The post thumbnail ID.

$size

(string|array) The post thumbnail size. Image size or array of width and height values (in that order). Default 'post-thumbnail'.

$attr

(string) Query string of attributes.