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get_attachment_taxonomies ›

Since2.5.0
Deprecatedn/a
get_attachment_taxonomies ( $attachment, $output = 'names' )
Parameters: (2)
  • (int|array|object) $attachment Attachment ID, data array, or data object.
    Required: Yes
  • (string) $output Output type. 'names' to return an array of taxonomy names, or 'objects' to return an array of taxonomy objects. Default is 'names'.
    Required: No
    Default: 'names'
Returns:
  • (array) Empty array on failure. List of taxonomies on success.
Defined at:
Codex:
Change Log:
  • 4.7.0

Retrieves taxonomies attached to given the attachment.



Source

function get_attachment_taxonomies( $attachment, $output = 'names' ) {
	if ( is_int( $attachment ) ) {
		$attachment = get_post( $attachment );
	} elseif ( is_array( $attachment ) ) {
		$attachment = (object) $attachment;
	}
	if ( ! is_object($attachment) )
		return array();

	$file = get_attached_file( $attachment->ID );
	$filename = basename( $file );

	$objects = array('attachment');

	if ( false !== strpos($filename, '.') )
		$objects[] = 'attachment:' . substr($filename, strrpos($filename, '.') + 1);
	if ( !empty($attachment->post_mime_type) ) {
		$objects[] = 'attachment:' . $attachment->post_mime_type;
		if ( false !== strpos($attachment->post_mime_type, '/') )
			foreach ( explode('/', $attachment->post_mime_type) as $token )
				if ( !empty($token) )
					$objects[] = "attachment:$token";
	}

	$taxonomies = array();
	foreach ( $objects as $object ) {
		if ( $taxes = get_object_taxonomies( $object, $output ) ) {
			$taxonomies = array_merge( $taxonomies, $taxes );
		}
	}

	if ( 'names' === $output ) {
		$taxonomies = array_unique( $taxonomies );
	}

	return $taxonomies;
}