has_term( string|int|array $term = , string $taxonomy = , int|WP_Post $post = null ): bool

Checks if the current post has any of given terms.

Description

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.

Parameters

$termstring|int|arrayoptional
The term name/term_id/slug, or an array of them to check for.

Default:''

$taxonomystringoptional
Taxonomy name.

Default:''

$postint|WP_Postoptional
Post to check. Defaults to the current post.

Default:null

Return

bool True if the current post has any of the given terms (or any term, if no term specified). False otherwise.

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;
}

Changelog

VersionDescription
3.1.0Introduced.

User Contributed Notes

  1. Skip to note 5 content

    If you’re checking for the presence of any terms from a given taxonomy on a post, you can pass in an empty string as the first parameter.

    Example

    if( has_term('', 'genre') ){
    	// do something
    }

    This is useful if you want to conditionally display some markup that applies only if terms have been added to a post.

  2. Skip to note 7 content

    Example for check if a post of cpt have a specific term of a custom taxonomy.
    In this example we check if the post have a term ‘action’ and in this case asign one css class to a variable that we use later on html.
    CPT: “hook”
    Taxonomy: “hook-type”
    Taxonomy terms: “action” and “filter”.
    Note that in this example, this code is inside a cpt archive file “archive-hook.php”.

    $hook_css_class = '';
    if (has_term( 'action', 'hook-type' )) {
      $hook_css_class = "is-action-hook";
    } else {
      $hook_css_class = "is-filter-hook";
    };
  3. Skip to note 8 content

    The has_term function in WordPress is used to check if a post has a specific term (category, tag, or custom taxonomy term). Here’s an example:

    // Specify the term and taxonomy you want to check
    $term = 'wpdocs_term'; // Replace with the actual term slug or name
    $taxonomy = 'wpdocs_category'; // Replace with the actual taxonomy name
    
    // Specify the post ID you want to check
    $post_id = 1; // Replace with the actual post ID
    
    // Use has_term to check if the post has the specified term
    if ( has_term( $term, $taxonomy, $post_id ) ) {
        // The post has the specified term
        echo 'Post has the term ' . $term . ' in the ' . $taxonomy . ' taxonomy.';
    } else {
        // The post does not have the specified term
        echo 'Post does not have the term ' . $term . ' in the ' . $taxonomy . ' taxonomy.';
    }

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