woocommerce change currency per category [closed]

Hook the woocommerce_currency filter.

function change_woocommerce_currency( $currency ) {
    if ( is_product_category( 'my-special-cat' ) ) {
        $currency = 'myCred' // or whatever the currency symbol is
    }
    return $currency;
}
add_filter( 'woocommerce_currency', 'change_woocommerce_currency' );