WordPress at a glance

is_attachment() WP 1.0

Is the query for an existing attachment page?

  • Global. WP_Query. $wp_query Global WP_Query instance.

No Hooks.

Return

true/false.

Usage

is_attachment( $attachment );
$attachment(int/string/array/object)
Attachment ID, title, slug, or array of such.
Default: ''

Code of is_attachment: wp-includes/query.php VER 4.9.8

<?php
function is_attachment( $attachment = '' ) {
	global $wp_query;

	if ( ! isset( $wp_query ) ) {
		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
		return false;
	}

	return $wp_query->is_attachment( $attachment );
}

Related Functions

From tag: Conditional tags (page type and request)

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