Cách thêm tiền tệ VNĐ vào woocommerce, change current $ (ok)

https://levantoan.com/them-tien-te-vnd-vao-woocommerce/

//Thêm VNĐ cho woo
add_filter( 'woocommerce_currencies', 'add_my_currency' );
function add_my_currency( $currencies ) {
 $currencies['vnd'] = __( 'Việt Nam Đồng', 'woocommerce' );
 return $currencies;
}
add_filter('woocommerce_currency_symbol', 'add_my_currency_symbol', 10, 2);
function add_my_currency_symbol( $currency_symbol, $currency ) {
 switch( $currency ) {
 case 'vnd': $currency_symbol = 'VNĐ'; break;
 }
 return $currency_symbol;
}