wp_get_attachment_thumb_file( int $post_id )
Retrieve thumbnail for an attachment.
Parameters
- $post_id
-
(Optional) Attachment ID. Default 0.
Return
(string|false) False on failure. Thumbnail file path on success.
Source
File: wp-includes/post.php
function wp_get_attachment_thumb_file( $post_id = 0 ) {
$post_id = (int) $post_id;
if ( !$post = get_post( $post_id ) )
return false;
if ( !is_array( $imagedata = wp_get_attachment_metadata( $post->ID ) ) )
return false;
$file = get_attached_file( $post->ID );
if ( !empty($imagedata['thumb']) && ($thumbfile = str_replace(basename($file), $imagedata['thumb'], $file)) && file_exists($thumbfile) ) {
/**
* Filters the attachment thumbnail file path.
*
* @since WP-2.1.0
*
* @param string $thumbfile File path to the attachment thumbnail.
* @param int $post_id Attachment ID.
*/
return apply_filters( 'wp_get_attachment_thumb_file', $thumbfile, $post->ID );
}
return false;
}
Changelog
Version | Description |
---|---|
WP-2.1.0 | Introduced. |