Title: WP_Query::is_attachment
Published: April 25, 2014
Last modified: August 20, 2026

---

# WP_Query::is_attachment( int|string|int[]|string[] $attachment = ” ): bool

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wp_query/is_attachment/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wp_query/is_attachment/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wp_query/is_attachment/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wp_query/is_attachment/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_query/is_attachment/?output_format=md#changelog)

Determines whether the query is for an existing attachment page.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wp_query/is_attachment/?output_format=md#parameters)󠁿

 `$attachment`int|string|int[]|string[]optional

Attachment ID, title, slug, or array of such to check against.

Default:`''`

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wp_query/is_attachment/?output_format=md#return)󠁿

 bool Whether the query is for an existing attachment page.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wp_query/is_attachment/?output_format=md#source)󠁿

    ```php
    public function is_attachment( $attachment = '' ) {
    	if ( ! $this->is_attachment ) {
    		return false;
    	}

    	if ( empty( $attachment ) ) {
    		return true;
    	}

    	$attachment = array_map( 'strval', (array) $attachment );

    	$post_obj = $this->get_queried_object();
    	if ( ! $post_obj ) {
    		return false;
    	}

    	if ( in_array( (string) $post_obj->ID, $attachment, true ) ) {
    		return true;
    	} elseif ( in_array( $post_obj->post_title, $attachment, true ) ) {
    		return true;
    	} elseif ( in_array( $post_obj->post_name, $attachment, true ) ) {
    		return true;
    	}
    	return false;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-wp-query.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.1/src/wp-includes/class-wp-query.php#L4212)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-query.php#L4212-L4236)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wp_query/is_attachment/?output_format=md#related)󠁿

| Uses | Description | 
| [WP_Query::get_queried_object()](https://developer.wordpress.org/reference/classes/wp_query/get_queried_object/)`wp-includes/class-wp-query.php` |

Retrieves the currently queried object.

  |

| Used by | Description | 
| [is_attachment()](https://developer.wordpress.org/reference/functions/is_attachment/)`wp-includes/query.php` |

Determines whether the query is for an existing attachment page.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wp_query/is_attachment/?output_format=md#changelog)󠁿

| Version | Description | 
| [3.1.0](https://developer.wordpress.org/reference/since/3.1.0/) | Introduced. |

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