在slug的“有意义”url变量（城市、地区等）之前添加所需的值，如下所示：

"uk/([^/]*)/([^/]*)/?$" => \'index.php?city=$matches[1]&area=$matches[2]&something=$matches[3]\',

更完整的示例可能如下所示

//Set up the additional values in the "rewrite rules" array
function my_rewrites($rules){

        $new_rules = array(

            //uk/London/Chelsea/
            "uk/([^/]*)/([^/]*)/?$" => \'index.php?city=$matches[1]&area=$matches[2]\',

        );

        $new_rules = array_merge($new_rules, $rules);

        return $new_rules;
}
add_filter(\'rewrite_rules_array\', \'my_rewrites\');


/**
 * Add Rewrite Tags 
 */
function my_rewrite_tags(){

    //EG "London"
    add_rewrite_tag(\'%city%\',\'([^/]*)\');

    //EG "Chelsea"
    add_rewrite_tag(\'%area%\',\'([^/]*)\');

}
add_action(\'init\', \'my_rewrite_tags\');

/**
 * Use the information provided in the URL like this:
 */
function my_custom_function_which_does_stuff(){
    global $wp_query;

    if ( isset( $wp_query->query_vars[\'city\'] ) ){

        //EG London
        $city = $wp_query->query_vars[\'city\'];

        //EG Chelsea
        $area = $wp_query->query_vars[\'area\'];

    }

}
add_action( \'init\', \'my_custom_function_which_does_stuff\' );