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is_tag() WP 1.0

Is the query for an existing tag archive page?

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.

  • Global. WP_Query. $wp_query Global WP_Query instance.
Works based on: WP_Query::is_tag()

No Hooks.

Return

true/false.

Usage

is_tag( $tag );
$tag(mixed)
Tag ID, name, slug, or array of Tag IDs, names, and slugs.
Default: ''

Code of is_tag: wp-includes/query.php VER 5.0.1

<?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 );
}

Related Functions

From tag: Conditional tags (page type and request)

More from tag: Conditional tags (all)

More from category: Queries

More from Template Tags: Main Functions

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