Tutorial on how to implement product multi-specification SKU function in PHP

Tutorial on how to implement the SKU function of multiple product specifications in PHP

In e-commerce websites, products generally have multiple specifications, such as the color and size of clothes. wait. In order to facilitate management and purchase, we usually use SKU (Stock Keeping Unit) to organize product information. This tutorial will introduce how to use PHP to implement the multi-specification SKU function of products.

1. Data structure design

First, we need to design a suitable data structure to store product specifications and inventory information. Here, we can use an array to represent the specification combination of the product, the key name is the specification name, and the key value is the specification option. For example:

$skuData = [
    '颜色' => ['红色', '蓝色', '黄色'],
    '尺码' => ['S', 'M', 'L'],
];

For each specification combination, we also need to store information such as inventory quantity and price. It can be represented by a two-dimensional array, in which the key name is the unique identifier of the specification combination, for example:

$skuStock = [
    '红色-S' => [
        'stock' => 10,
        'price' => 100,
    ],
    '红色-M' => [
        'stock' => 20,
        'price' => 150,
    ],
    // 其他规格组合...
];

2. Generate specification combination

Next, we need to generate all possible specifications based on the specification options combination of specifications. This can be achieved using recursive methods. The code is as follows:

function generateSku($specData, $result = [], $temp = []) {
    if(empty($specData)) {
        $result[] = $temp;
    } else {
        $key = key($specData);
        $values = $specData[$key];
        foreach($values as $value) {
            $temp[$key] = $value;
            $result = generateSku(array_slice($specData, 1), $result, $temp);
        }
    }
    return $result;
}

$allSku = generateSku($skuData);

3. Query the inventory and price of the specification combination

For pages such as product details pages or shopping carts, we need to query the corresponding inventory and price based on the specification combination selected by the user. information. You can use the following code to achieve this:

function getSkuInfo($specCombination, $skuStock) {
    $skuId = implode('-', $specCombination);
    if(array_key_exists($skuId, $skuStock)) {
        return $skuStock[$skuId];
    }
    return null;
}

$specCombination = ['红色', 'S'];
$skuInfo = getSkuInfo($specCombination, $skuStock);

4. Front-end interaction

Finally, we need to implement specification selection and interaction on the front-end page. When the user selects a specification option, we update information such as inventory and price based on the selected specification combination. You can use the following code to achieve this:

<script>
var skuData = <?php echo json_encode($skuData); ?>;
var skuStock = <?php echo json_encode($skuStock); ?>;

function selectSpec(specName, specValue) {
    // 更新已选择的规格组合
    // 根据已选择的规格组合查询库存和价格信息
}

function updateSkuInfo(skuInfo) {
    // 更新库存和价格信息的显示
}

// 监听规格选择的变化
$('select.spec-select').change(function() {
    var specName = $(this).data('spec-name');
    var specValue = $(this).val();
    selectSpec(specName, specValue);
});
</script>

The above example code simply shows the basic ideas and methods for realizing the multi-specification SKU function of the product. The specific implementation details may vary depending on the application scenario. Hope this tutorial is helpful to you.

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