Code-Snippets-Functions/Execute a function on a child site/Relevanssi/auto-redirecting-one-search-result.txt

add_action('template_redirect', 'one_match_redirect');
function one_match_redirect() {
    if (is_search()) {
        global $wp_query;
        if ($wp_query->post_count == 1) {
            wp_redirect( get_permalink( $wp_query->posts['0']->ID ) );
            exit();
        }
    }
}