nenadcvele

Thanx.
I’ve translated everything, and now traslations are on waiting.

This would be the code for changing wc_cart_totals_order_total_html function (to be placed in child theme functions.php):

add_filter('woocommerce_cart_totals_order_total_html','test_func');
function test_func() {
    $value = '<strong>Test' . WC()->cart->get_total() . '</strong> ';
    return $value;
}

It adds ‘Test’ to total amount.

It’s an old topic, but maybe I could help a bit. I had similar problem. I wanted to override currencies, and add a custom currency. The functions are in woocommerce/includes/wc-core-functions.php

function get_woocommerce_currencies() {
	return array_unique(
		apply_filters( 'woocommerce_currencies',
			array(

… and so on
The other function is:

function get_woocommerce_currency_symbol( $currency = '' ) {
	if ( ! $currency ) {
		$currency = get_woocommerce_currency();
	}

	switch ( $currency ) {
        ...
        return apply_filters( 'woocommerce_currency_symbol', $currency_symbol, $currency );

This is the code I’ve put in functions.php of my child theme:

add_filter( 'woocommerce_currencies', 'add_my_currency' );

function add_my_currency( $currencies ) {
$currencies['RSD'] = __( 'Serbian dinar', '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 'RSD': $currency_symbol = 'RSD'; break;
}
return $currency_symbol;
}