get_adjacent_post example

function get_previous_post( $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
    return get_adjacent_post( $in_same_term, $excluded_terms, true, $taxonomy );
}

/** * Retrieves the next post that is adjacent to the current post. * * @since 1.5.0 * * @param bool $in_same_term Optional. Whether post should be in the same taxonomy term. * Default false. * @param int[]|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs. * Default empty. * @param string $taxonomy Optional. Taxonomy, if `$in_same_term` is true. Default 'category'. * @return WP_Post|null|string Post object if successful. Null if global `$post` is not set. * Empty string if no corresponding post exists. */