has_tag( string|int|array $tag = '', int|object $post = null )

Check if the current post has any of given tags.


Description

The given tags are checked against the post’s tags’ term_ids, names and slugs. Tags given as integers will only be checked against the post’s tags’ term_ids. If no tags are given, determines if post has any tags.

Prior to v2.7 of WordPress, tags given as integers would also be checked against the post’s tags’ names and slugs (in addition to term_ids) Prior to v2.7, this function could only be used in the ClassicPress Loop. As of 2.7, the function can be used anywhere if it is provided a post ID or post object.


Parameters

$tag

(string|int|array) (Optional) The tag name/term_id/slug or array of them to check for.

Default value: ''

$post

(int|object) (Optional) Post to check instead of the current post. (since WP-2.7.0)

Default value: null


Return

(bool) True if the current post has any of the given tags (or any tag, if no tag specified).


Source

File: wp-includes/category-template.php

function has_tag( $tag = '', $post = null ) {
	return has_term( $tag, 'post_tag', $post );
}


Changelog

Changelog
Version Description
WP-2.6.0 Introduced.