There is the following data in the excel file. How to do data statistics without using a database?

id band (brand) num (sales quantity) price (unit price)
1 Samsung 7677 2300
2 Huawei 9877 1699
3 Apple 24552 6799
... More brands, unknown quantity, consider the large quantity in excel

Question:
If we want to count the top 3 brands with the largest total sales (the database cannot be used)
just tell me your idea, thank you

Reply content:

id band (brand) num (sales quantity) price (unit price)
1 Samsung 7677 2300
2 Huawei 9877 1699
3 Apple 24552 6799
... More brands, unknown quantity, consider the large quantity in excel

Question:
If we want to count the top 3 brands with the largest total sales (the database cannot be used)
just tell me your idea, thank you

php gets the execl content. Each cell will be a key in the array. Sales (quantity * price) are accumulated according to the brand key, and the top three are finally sorted.

Thank you for the invitation. You can use a program to read the excel file and organize it into an array, and then sort the array by price. Personal understanding

Excel problem?

• Create a new column and calculate the total sales of each row;

• Enable filtering

• Sort

PHP implementation method:

<code class="php"><?php 
$data   = []; // excel的数据 brand: 品牌; price: 价格; qty: 销量;

$result = [];

foreach ($data as $item) {
    $total = $item['price'] * $item['qty'];

    if (array_key_exists($item['brand'], $result)) {
        $result[$item['brand']] += $item['price'] * $item['qty'];
    } else {
        $result[$item['brand']] = $total;
    }
}

arsort($result);  // 值降序排序

// 前三个值的key就是品牌了
?>
</code>