更改Woocommerce购物车总计中的小数位数 [英] Change number of decimals in Woocommerce cart totals

问题描述

在Woocommerce中，我在Woocommerce常规设置中将小数位数设置为7，因此可以显示产品价格，如 $ 0.0453321 。

In Woocommerce, I've set the number of decimal to 7 on in Woocommerce general settings, so I can display the product price like this $0.0453321.

我想知道是否可以将购物车总数设置/舍入到小数点后2位（类似于 $ 2.34 ）？

I'm wondering if I can set/round the cart total to only 2 decimals (something like this $2.34)?

推荐答案

正确的方法是只更改数字

The correct way is to change just the number of allowed decimals for cart and checkout pages only:

add_filter( 'wc_get_price_decimals', 'change_prices_decimals', 20, 1 );
function change_prices_decimals( $decimals ){
    if( is_cart() || is_checkout() )
        $decimals = 2;
    return $decimals;
}

代码包含在您活动的子主题的function.php文件中（ 经过测试并有效。

设置已支付的购物车总金额带有2个小数的小写字母，请改用（仅适用于Woocommerce 3.3 +）：

To set the dispayed cart gran total with 2 decimals use this instead (for Woocommerce 3.3+ only):

add_filter( 'woocommerce_cart_tax_totals', 'change_decimals_cart_tax_totals', 20, 2 );
function change_decimals_cart_tax_totals( $tax_totals, $cart ){
    $decimals = array('decimals' => 2);

    $taxes      = $cart->get_taxes();
    $tax_totals = array();

    foreach ( $taxes as $key => $tax ) {
        $code = WC_Tax::get_rate_code( $key );

        if ( $code || $key === apply_filters( 'woocommerce_cart_remove_taxes_zero_rate_id', 'zero-rated' ) ) {
            if ( ! isset( $tax_totals[ $code ] ) ) {
                $tax_totals[ $code ] = new stdClass();
                $tax_totals[ $code ]->amount = 0;
            }
            $tax_totals[ $code ]->tax_rate_id       = $key;
            $tax_totals[ $code ]->is_compound       = WC_Tax::is_compound( $key );
            $tax_totals[ $code ]->label             = WC_Tax::get_rate_label( $key );
            $tax_totals[ $code ]->amount           += wc_round_tax_total( $tax );
            $tax_totals[ $code ]->formatted_amount  = wc_price( wc_round_tax_total( $tax_totals[ $code ]->amount ), $decimals );
        }
    }

    if ( apply_filters( 'woocommerce_cart_hide_zero_taxes', true ) ) {
        $amounts    = array_filter( wp_list_pluck( $tax_totals, 'amount' ) );
        $tax_totals = array_intersect_key( $tax_totals, $amounts );
    }
    return $tax_totals;
}

add_filter( 'woocommerce_cart_totals_order_total_html', 'change_decimals_cart_totals_order_total_html', 20, 1 );
function change_decimals_cart_totals_order_total_html( $formatted_price ){
    $decimals = array('decimals' => 2);

    $value = '<strong>' . wc_price( WC()->cart->get_total('edit'), $decimals ) . '</strong> ';

    // If prices are tax inclusive, show taxes here.
    if ( wc_tax_enabled() && WC()->cart->display_prices_including_tax() ) {
        $tax_string_array = array();
        $cart_tax_totals  = WC()->cart->get_tax_totals();

        if ( get_option( 'woocommerce_tax_total_display' ) == 'itemized' ) {
            foreach ( $cart_tax_totals as $code => $tax ) {
                $tax_string_array[] = sprintf( '%s %s', $tax->formatted_amount, $tax->label );
            }
        } elseif ( ! empty( $cart_tax_totals ) ) {
            $tax_string_array[] = sprintf( '%s %s', wc_price( WC()->cart->get_taxes_total( true, true ), $decimals ), WC()->countries->tax_or_vat() );
        }

        if ( ! empty( $tax_string_array ) ) {
            $taxable_address = WC()->customer->get_taxable_address();
            $estimated_text  = WC()->customer->is_customer_outside_base() && ! WC()->customer->has_calculated_shipping()
                ? sprintf( ' ' . __( 'estimated for %s', 'woocommerce' ), WC()->countries->estimated_for_prefix( $taxable_address[0] ) . WC()->countries->countries[ $taxable_address[0] ] )
                : '';
            $value .= '<small class="includes_tax">' . sprintf( __( '(includes %s)', 'woocommerce' ), implode( ', ', $tax_string_array ) . $estimated_text ) . '</small>';
        }
    }
    return $value;
}

代码包含在您活动的子主题的function.php文件中（ 经过测试并可以正常工作。

Code goes in function.php file of your active child theme (or active theme). Tested and works.

您无法真正舍入购物车总计中的价格。如果使用不同的钩子执行此操作，则会出现计算错误。我的代码只是更改显示格式的价格的小数位数，而不会更改实际价格的计算方式……

You can't really round the prices in cart totals appart. If you do it with different hooks, you will get calculation errors. My code is just changing the number of decimals on displayed formatted prices and will not alter the calculations on real prices…

相关：更改Woocommerce显示的购物车小计的小数位数

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