Summery Summery

Determines whether the query is for an existing tag archive page.

Syntax Syntax

is_tag( int|string|int[]|string[] $tag = '' )

Description Description

If the $tag parameter is specified, this function will additionally check if the query is for one of the tags specified.

For more information on this and similar theme functions, check out the Conditional Tags article in the Theme Developer Handbook.

Parameters Parameters


(Optional) Tag ID, name, slug, or array of such to check against.

Default value: ''

Return Return


Source Source

File: wp-includes/query.php

function is_tag( $tag = '' ) {
	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_tag( $tag );


Changelog Changelog

Version Description
2.3.0 Introduced.


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