Php 基于免费送货有条件隐藏电子商务结帐自定义字段

在WooCommerce中，每当选择“免费送货”时，我都试图隐藏一个自定义添加的字段（根据订单金额自动选择）

我想我找到了一个解决方案，下面的代码，但当我在新的（匿名）浏览器窗口加载一个页面时，该字段出现了，如果刷新它，该字段将再次隐藏

// Hide address field, when Free Shipping mode is selected
add_filter('woocommerce_checkout_fields', 'xa_remove_billing_checkout_fields');

function xa_remove_billing_checkout_fields($fields) {
    $shipping_method ='free_shipping:5'; // Set the desired shipping method to hide the checkout field(s).
    global $woocommerce;
    $chosen_methods = WC()->session->get( 'chosen_shipping_methods' );
    $chosen_shipping = $chosen_methods[0];

    if ($chosen_shipping == $shipping_method) {
        unset($fields['billing']['billing_field_432']); // Add/change filed name to be hide
    }
    return $fields;
}

---

非常感谢您的帮助。

由于这是一个实时事件，您需要使用javascript/jQuery使其正常工作。您的“billing_field_432”不必是必需的，因为当字段被隐藏并尝试提交订单时，将为此自定义签出字段抛出一条错误通知消息

根据“免费送货：5”送货方式显示/隐藏该字段的代码：

// Conditional Show hide checkout fields based on chosen shipping methods
add_action( 'wp_footer', 'conditionally_hidding_billing_custom_field' );
function conditionally_hidding_billing_custom_field(){
    // Only on checkout page
    if( ! is_checkout() ) return;

    // HERE your shipping methods rate ID "Free shipping"
    $free_shipping = 'free_shipping:5';
    ?>
    <script>
        jQuery(function($){
            // Choosen shipping method selectors slug
            var sm  = 'input[name^="shipping_method"]',
                smc = sm + ':checked',
                cbf = '#billing_field_432_field',
                ihc = 'input[name="hidden_check"]';

            // Function that shows or hide imput select fields
            function showHide( selector = '', action = 'show' ){
                if( action == 'show' )
                    $(selector).show( 200, function(){
                        $(this).addClass("validate-required");
                        $(ihc).val('1'); // Set hidden field for checkout process
                    });
                else
                    $(selector).hide( 200, function(){
                        $(this).removeClass("validate-required");
                        $(ihc).val(''); // Set hidden field for checkout process
                    });
                $(selector).removeClass("woocommerce-validated");
                $(selector).removeClass("woocommerce-invalid woocommerce-invalid-required-field");
            }

            // Initialising: Hide if choosen shipping method is "Free Shipping" method
            if( $(smc).val() == '<?php echo $free_shipping; ?>' )
                showHide( cbf, 'hide' );
            else
                $(ihc).val('1'); // Set hidden field for checkout process

            // Live event (When shipping method is changed): Show or Hide based on "Free Shipping" method
            $( 'form.checkout' ).on( 'change', sm, function() {
                if( $(smc).val() == '<?php echo $free_shipping; ?>' )
                    showHide( cbf, 'hide' );
                else
                    showHide( cbf );
            });
        });
    </script>
    <?php
}

此代码位于活动子主题（或主题）的function.php文件中。测试和工作

它基于：

---

由于您使用的是免费送货方式，最低订购量为“50”和。您应该改为使用此选项：

// Unset checkout field based on cart amount for free shipping
add_filter('woocommerce_checkout_fields', 'remove_checkout_billing_field_432', 999 );
function remove_checkout_billing_field_432( $fields ) {
    if ( WC()->cart->cart_contents_total >= 50 ) {
        unset($fields['billing']['billing_field_432']); // Unset field
    }
    return $fields;
}

此代码位于活动子主题（或主题）的function.php文件中。已测试并正常工作。

可能的副本

// Unset checkout field based on cart amount for free shipping
add_filter('woocommerce_checkout_fields', 'remove_checkout_billing_field_432', 999 );
function remove_checkout_billing_field_432( $fields ) {
    if ( WC()->cart->cart_contents_total >= 50 ) {
        unset($fields['billing']['billing_field_432']); // Unset field
    }
    return $fields;
}