Custom value in friendly url

Hello, i have problem with custom friendly url. I need pass variable to url. I using tutorial `add_filter(‘rewrite_rules_array’,’my_em_styles_rewrite_rules_array’);
function my_em_styles_rewrite_rules_array($rules){
//get the slug of the event page
$events_page_id = 152;
$events_page = get_post($events_page_id);
$my_em_rules = array();
if( is_object($events_page) ){
$events_slug = $events_page->post_name;
$my_em_rules[$events_slug.’/styles$’] = ‘index.php?page_id=’.$events_slug.’&styles_page=1′; //styles list
$my_em_rules[$events_slug.’/style/(\d+)$’] = ‘index.php?page_id=’.$events_slug.’&style_id=$matches[1]’; //single style
}
return $my_em_rules + $rules;
}

add_filter(‘query_vars’,’my_em_styles_query_vars’);
function my_em_styles_query_vars($vars){
array_push($vars, ‘style_id’,’styles_page’);
return $vars;
}

function my_em_rewrite_flush(){
global $wp_rewrite;
$wp_rewrite->flush_rules();
}
add_action(‘init’,’my_em_rewrite_flush’);`
but this don’t working. Have you any idea where is problem.
I need a little help. Waiting for your reply.
Thanks xammil