Application of PHP array grouping function in e-commerce

PHP array grouping function array_group_by() can group arrays by specified keys. It can be used in e-commerce: grouping according to product category, such as classifying T-shirts and jeans as "clothing"; grouping according to price range, such as Products priced between 50 and 100 yuan are classified into the "50-100 yuan range"; grouped according to brand, for example, Xiaomi and Apple products are classified as "Xiaomi" and "Apple" respectively; grouped according to user ratings, such as those rated 4 stars or above Classified as "High Rated".

Application of PHP array grouping function in e-commerce

Introduction

PHP array grouping function array_group_by() Allows you to group elements in an array based on a specified key. This is especially useful in e-commerce because it allows you to group products based on product category, price range, or other criteria.

Syntax

array_group_by($array, $key_field)

Among them:

• $array is the array to be grouped.
• $key_field is the key used to group the array.

Practical case: Grouping products according to product category

Suppose you have an array containing the following product information:

$products = [
    [
        'id' => 1,
        'name' => 'T-shirt',
        'category' => 'Clothing',
    ],
    [
        'id' => 2,
        'name' => 'Jeans',
        'category' => 'Clothing',
    ],
    [
        'id' => 3,
        'name' => 'Laptop',
        'category' => 'Electronics',
    ],
];

You can Group these products by category using the array_group_by() function:

$grouped_products = array_group_by($products, 'category');

Output:

[
    'Clothing' => [
        [
            'id' => 1,
            'name' => 'T-shirt',
            'category' => 'Clothing',
        ],
        [
            'id' => 2,
            'name' => 'Jeans',
            'category' => 'Clothing',
        ],
    ],
    'Electronics' => [
        [
            'id' => 3,
            'name' => 'Laptop',
            'category' => 'Electronics',
        ],
    ],
]

You can now iterate over the grouped array and access the products in each category individually.

Other applications

array_group_by() The function has other applications in e-commerce, such as:

• Group products based on price range
• Group products based on product brand
• Group products based on user ratings

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