wp_get_attachment_thumb_url │ filter-hook │ WP 2.1.0

Filters the attachment thumbnail URL.

Usage

add_filter( 'wp_get_attachment_thumb_url', 'wp_kama_get_attachment_thumb_url_filter', 10, 2 );

/**
 * Function for `wp_get_attachment_thumb_url` filter-hook.
 * 
 * @param string $thumbnail_url URL for the attachment thumbnail.
 * @param int    $post_id       Attachment ID.
 *
 * @return string
 */
function wp_kama_get_attachment_thumb_url_filter( $thumbnail_url, $post_id ){

	// filter...
	return $thumbnail_url;
}

$thumbnail_url(string)

URL for the attachment thumbnail.

$post_id(int)

Attachment ID.

Changelog

Where the hook is called

return apply_filters( 'wp_get_attachment_thumb_url', $thumbnail_url, $post_id );

Where the hook is used in WordPress