Check if the current post has any of given terms.

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

Signature

has_term( $term = '', $taxonomy = '', $post = null )
term
 (string|int|array) Optional. The term name/term_id/slug or array of them to check for.
Default: ''
taxonomy
 (string) Taxonomy name
Default: ''
post
 (int|object) Optional. Post to check instead of the current post.
Default: null

Return

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

Source

function has_term( $term = '', $taxonomy = '', $post = null ) {
	$post = get_post($post);

	if ( !$post )
		return false;

	$r = is_object_in_term( $post->ID, $taxonomy, $term );
	if ( is_wp_error( $r ) )
		return false;

	return $r;
}
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