фильтр по цене

Не работает фильтр по цене!
add_filter( ‘woocommerce_product_query_meta_query’, ‘filter_function_name_3276’, 10, 2 );
function filter_function_name_3276( $meta_query ){
global $wpdb;
if ( isset( $_GET[‘max_price’] ) || isset( $_GET[‘min_price’] ) ) { // WPCS: input var ok, CSRF ok.
$kurs=get_option(‘kurs’);
if (isset($_GET[‘min_price’]) && $_GET[‘min_price’]>0){
$meta_query[‘price_filter’][‘value’][0] = $meta_query[‘price_filter’][‘value’][0]/$kurs;
};
if (isset($_GET[‘max_price’])){
$meta_query[‘price_filter’][‘value’][1] = $meta_query[‘price_filter’][‘value’][1]/$kurs;
};
return $meta_query;
}
return $meta_query;
}