Extend get_european_union_countries() function in WooCommerce-CodePudding

I'm using a filter that targets the EU countries, which works well. However - I would like to included UK which isn't part of the EU anymore as well as US.

Is there a way to extend get_european_union_countries() function in WooCommerce? So I get a specific country (UK, US) from WC_Countries, so I can add it to my true statement in my existing code?

add_filter( 'wc_aelia_tdbc_keep_prices_fixed', function($keep_prices_fixed): bool {        
    $countries = new WC_Countries();
    $eu_countries = $countries->get_european_union_countries();

    if ( WC()->customer ) {
       if ( in_array( WC()->customer->get_billing_country(), $eu_countries ) ) {
            $keep_prices_fixed = true;
        } else {
            $keep_prices_fixed = false;
        }
    }

    return $keep_prices_fixed;
});

CodePudding user response：

Besides using your existing code you can use the woocommerce_european_union_countries filter hook

So you get:

function filter_woocommerce_european_union_countries( $countries, $type ) { 
    // Add to the array
    array_push( $countries, 'UK', 'US' );
    
    return $countries;
}
add_filter( 'woocommerce_european_union_countries', 'filter_woocommerce_european_union_countries', 10, 2 );