wp_get_post_terms( int $post_id, string|string[] $taxonomy = 'post_tag', array $args = array() )

Retrieves the terms for a post.

Parameters

$post_id

(int) (Optional) The Post ID. Does not default to the ID of the global $post. Default 0.

$taxonomy

(string|string[]) (Optional) The taxonomy slug or array of slugs for which to retrieve terms.

Default value: 'post_tag'

$args

(array) (Optional) Term query parameters. See WP_Term_Query::__construct() for supported arguments.

  • 'fields'
    (string) Term fields to retrieve. Default 'all'.

Default value: array()

Return

(array|WP_Error) Array of WP_Term objects on success or empty array if no terms were found. WP_Error object if $taxonomy doesn't exist.

Source

File: wp-includes/post.php 

function wp_get_post_terms( $post_id = 0, $taxonomy = 'post_tag', $args = array() ) {
	$post_id = (int) $post_id;

	$defaults = array( 'fields' => 'all' );
	$args     = wp_parse_args( $args, $defaults );

	$tags = wp_get_object_terms( $post_id, $taxonomy, $args );

	return $tags;
}

Uses

Uses Description
wp-includes/functions.php: wp_parse_args()

Merges user defined arguments into defaults array.
wp-includes/taxonomy.php: wp_get_object_terms()

Retrieves the terms associated with the given object(s), in the supplied taxonomies.

Changelog

Version Description
2.8.0 Introduced.

© 2003–2021 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_get_post_terms