wp_get_attachment_url │ filter-hook │ WP 2.1.0

Filters the attachment URL.

Usage

add_filter( 'wp_get_attachment_url', 'wp_kama_get_attachment_url_filter', 10, 2 );

/**
 * Function for `wp_get_attachment_url` filter-hook.
 * 
 * @param string $url           URL for the given attachment.
 * @param int    $attachment_id Attachment post ID.
 *
 * @return string
 */
function wp_kama_get_attachment_url_filter( $url, $attachment_id ){

	// filter...
	return $url;
}

$url(string)

URL for the given attachment.

$attachment_id(int)

Attachment post ID.

Changelog

Where the hook is called

$url = apply_filters( 'wp_get_attachment_url', $url, $post->ID );

Where the hook is used in WordPress