begin_fetch_post_thumbnail_html │ action-hook │ WP 2.9.0

Fires before fetching the post thumbnail HTML.

Provides "just in time" filtering of all filters in wp_get_attachment_image().

Usage

add_action( 'begin_fetch_post_thumbnail_html', 'wp_kama_begin_fetch_post_thumbnail_html_action', 10, 3 );

/**
 * Function for `begin_fetch_post_thumbnail_html` action-hook.
 * 
 * @param int          $post_id           The post ID.
 * @param int          $post_thumbnail_id The post thumbnail ID.
 * @param string|int[] $size              Requested image size. Can be any registered image size name, or an array of width and height values in pixels (in that order).
 *
 * @return void
 */
function wp_kama_begin_fetch_post_thumbnail_html_action( $post_id, $post_thumbnail_id, $size ){

	// action...
}

$post_id(int)

The post ID.

$post_thumbnail_id(int)

The post thumbnail ID.

$size(string|int[])

Requested image size. Can be any registered image size name, or an array of width and height values in pixels (in that order).

Changelog

Where the hook is called

do_action( 'begin_fetch_post_thumbnail_html', $post->ID, $post_thumbnail_id, $size );

Where the hook is used in WordPress

add_action( 'begin_fetch_post_thumbnail_html', '_wp_post_thumbnail_class_filter_add' );

add_action( 'begin_fetch_post_thumbnail_html', '_wp_post_thumbnail_context_filter_add' );