How to use PHP to write an automated product inventory counting tool

How to use PHP to write an automated product inventory counting tool

Inventory management is one of the important issues faced by every enterprise. In order to ensure accurate inventory and improve work efficiency, automated commodity inventory counting tools have become the first choice for business managers. This article will introduce how to use PHP to write a simple and practical automated product inventory counting tool, and attach relevant code examples.

1. Determine requirements
   Before we start writing code, we need to define the requirements first. A basic product inventory counting tool needs to complete the following functions:
2. Connect to the database to obtain product information and inventory quantity;
3. Automatically conduct inventory according to certain rules, that is, compare it with the actual inventory quantity ;
4. Generate inventory report, including product code, name, actual inventory quantity and inventory quantity and other information;
5. The report format can be customized according to needs.
6. Connect to the database
   First, we need to connect to the database to obtain product information and inventory quantities. The following is a simple PHP code example for connecting to a MySQL database:

$hostname = "localhost";
$username = "root";
$password = "password";
$database = "inventory";

$conn = new mysqli($hostname, $username, $password, $database);
if ($conn->connect_error) {
    die("连接数据库失败：" . $conn->connect_error);
}

3. Get product information and inventory quantity
   Next, we need to get the product information and inventory quantity from the database Stock quantity. The following is a simple PHP code example for querying the product table in the database:

$sql = "SELECT * FROM products";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    while ($row = $result->fetch_assoc()) {
        $product_id = $row['id'];
        $product_name = $row['name'];
        $stock_qty = $row['stock_qty'];
        
        // 写入相应的处理逻辑
    }
} else {
    echo "没有查询到商品信息。";
}

4. Counting inventory
   In the inventory counting stage, we need to compare the actual inventory quantity with the counting quantity Compare and generate corresponding reports. The following is a simple PHP code example for taking inventory and generating a report:

$report = array();

while ($row = $result->fetch_assoc()) {
    $product_id = $row['id'];
    $product_name = $row['name'];
    $stock_qty = $row['stock_qty'];
    $counted_qty = // 根据实际情况填写盘点数量；
    
    if ($stock_qty != $counted_qty) {
        $report[] = array(
            'product_id' => $product_id,
            'product_name' => $product_name,
            'stock_qty' => $stock_qty,
            'counted_qty' => $counted_qty
        );
    }
}

// 生成报告
if (!empty($report)) {
    foreach ($report as $item) {
        echo "商品编号：" . $item['product_id'] . "
";
        echo "商品名称：" . $item['product_name'] . "
";
        echo "实际库存数量：" . $item['stock_qty'] . "
";
        echo "盘点数量：" . $item['counted_qty'] . "

";
    }
} else {
    echo "库存盘点结果一致，没有差异。";
}

5. Customized report format
   Finally, we can customize the format of the report according to our needs. The following is a simple PHP code example for customizing the report format:

if (!empty($report)) {
    echo "<table>";
    echo "<tr><th>商品编号</th><th>商品名称</th><th>实际库存数量</th><th>盘点数量</th></tr>";
    
    foreach ($report as $item) {
        echo "<tr>";
        echo "<td>" . $item['product_id'] . "</td>";
        echo "<td>" . $item['product_name'] . "</td>";
        echo "<td>" . $item['stock_qty'] . "</td>";
        echo "<td>" . $item['counted_qty'] . "</td>";
        echo "</tr>";
    }
    
    echo "</table>";
} else {
    echo "库存盘点结果一致，没有差异。";
}

Through the above steps, we have successfully written a simple and practical automated product inventory counting tool. Obtain product information and inventory quantity by connecting to the database, take inventory and generate corresponding reports, and finally customize the report format according to needs. Further functional expansion can be carried out according to actual needs, such as adding permission management, exporting reports, etc.

I hope this article will help you understand how to use PHP to write an automated product inventory counting tool!

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