如何从 woocommerce 中的购物车页面获取特定的产品数量答案

【问题标题】：how to get particular product quantity from the cart page in the woocommerce如何从 woocommerce 中的购物车页面获取特定的产品数量
【发布时间】：2017-11-21 17:08:19
【问题描述】：

使用此代码：

foreach ( WC()->cart->get_cart() as $cart_item ) {  
   $quantity =  $cart_item['quantity'];
   echo $quantity;
}

我可以获取添加到购物车中的所有产品的数量，但我需要特定产品的数量。

【问题讨论】：

只检查 if 语句 if($cart_item['product_id'] === 'your-id') {

标签： php wordpress woocommerce cart product

【解决方案1】：

您可以遍历购物车项目以获取特定产品 ID 的数量，如下所示：

// Set here your product ID (or variation ID)
$targeted_id = 24;

// Loop through cart items
foreach ( WC()->cart->get_cart() as $cart_item ) { 
    if( in_array( $targeted_id, array($cart_item['product_id'], $cart_item['variation_id']) )){
        $quantity =  $cart_item['quantity'];
        break; // stop the loop if product is found
    }
}
// Displaying the quantity if targeted product is in cart
if( isset( $quantity ) && $quantity > 0 ) {
    printf( "<p>" . __("Quantity for Product ID %d is: %d") . "</p>", $targeted_id, $quantity );
}

或者您也可以使用WC_Cart method get_cart_item_quantities()，如下所示：

// Set here your product ID (or variation ID)
$targeted_id = 24;

// Get quantities for each item in cart (array of product id / quantity pairs)
$quantities = WC()->cart->get_cart_item_quantities(); 

// Displaying the quantity if targeted product is in cart
if( isset($quantities[$targeted_id]) && $quantities[$targeted_id] > 0 ) {
    printf( "<p>" . __("Quantity for Product ID %d is: %d") . "</p>", $targeted_id, $quantities[$targeted_id] );
}

注意：最后一种方式不允许定位父变量产品。

【讨论】：

【解决方案2】：

WC_Cart::get_cart_item_quantities() – Get cart items quantities

通过$product_id

// Your product ID
$product_id = 30;

// Get cart items quantities
$cart_item_quantities = WC()->cart->get_cart_item_quantities();

// Product quantity in cart - All PHP versions
$product_qty_in_cart = isset( $cart_item_quantities[ $product_id ] ) ? $cart_item_quantities[ $product_id ] : null;

// Product quantity in cart - Same as the previous one with PHP 7
$product_qty_in_cart = $cart_item_quantities[ $product_id ] ?? null;

// Result
echo $product_qty_in_cart;

通过$product

// Product
global $product;

// Get cart items quantities
$cart_item_quantities = WC()->cart->get_cart_item_quantities();

// Product quantity in cart 
$product_qty_in_cart = $cart_item_quantities[ $product->get_stock_managed_by_id() ];

// Result
echo $product_qty_in_cart;

【讨论】：

【解决方案3】：

1) 制作子主题

2) 使用以下代码创建一个名为 functions.php 的文件：

<?php
if( !function_exists('in_cart_product_quantity') ) {
    function in_cart_product_quantity( $atts ) {

        $atts = shortcode_atts(array('id' => ''), $atts, 'product_qty'); // shortcode attributes
        if( empty($atts['id'])) return; // check id not null

        if ( WC()->cart ) { // check cart exists
            $qty = 0; // init qty
            foreach (WC()->cart->get_cart() as $cart_item) {
                if($cart_item['product_id'] == $atts['id']) {
                    $qty =  $cart_item['quantity'];
                    break; // stop the loop if product is found
                }
            }
            return $qty;
        }
        return;
    }
    add_shortcode( 'product_qty', 'in_cart_product_quantity' );
}

3) 使用简码：

[product_qty id="xxx"]

(将xxx换成你想知道购物车数量的产品id)

感谢 LoicTheAztec（同一线程）

【讨论】：

【解决方案4】：

$cart = WC()->cart->get_cart();
$product_cart_id = WC()->cart->generate_cart_id( $product->get_id() );
if( WC()->cart->find_product_in_cart( $product_cart_id )) {
    echo($cart[$product_cart_id]['quantity']);
}

【讨论】：

请不要只发布代码作为答案，还要解释您的代码的作用以及它如何解决问题的问题。带有解释的答案通常更有帮助，质量更高，更有可能吸引投票。

【解决方案5】：

global $woocommerce;
    $items = $woocommerce->cart->get_cart();

    foreach($items as $item => $values) { 
        $_product = $values['data']->post; 
        echo "<b>".$_product->post_title.'</b>  <br> Quantity: '.$values['quantity'].'<br>'; 
        $price = get_post_meta($values['product_id'] , '_price', true);
        echo "  Price: ".$price."<br>";
    }

【讨论】：

【解决方案6】：

试试这个：

<?php
    global $woocommerce;
    $items = $woocommerce->cart->get_cart();

        foreach($items as $item => $values) { 
            $_product = $values['data']->post; 
            echo "<b>".$_product->post_title.'</b>  <br> Quantity: '.$values['quantity'].'<br>'; 
            $price = get_post_meta($values['product_id'] , '_price', true);
            echo "  Price: ".$price."<br>";
        } 
?>

【讨论】：

通过这个我会得到所有我只需要Y产品数量的XYZ产品...