fsilvalvm on "[Plugin: WooCommerce] Hide product price"

I tried with this code:
add_filter('woocommerce_variable_price_html', 'members_only_price', 10, 2);

and

add_filter('woocommerce_get_price_html','members_only_price');
function members_only_price($price){
if(is_user_logged_in() ){
retu $price;
}
else {
remove_action( 'woocommerce_after_shop_loop_item', 'woocommerce_template_loop_add_to_cart' );
remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_price', 10 );
remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );
remove_action( 'woocommerce_after_shop_loop_item_title', 'woocommerce_template_loop_price', 10 );
retu 'Only <a href="' .get_permalink(woocommerce_get_page_id('myaccount')). '">Registered Users</a> are able to view pricing.'; }
}

but i got the same problem