How to use PHP to write the code for the daily inventory counting function in the inventory management system

How to use PHP to write the daily inventory counting function code in the inventory management system

1. Introduction
Having accurate inventory data is very important for any enterprise. Inventory counting is one of the important steps in maintaining inventory accuracy. Through daily inventory, inventory data can be verified, potential problems can be discovered, and inventory records can be adjusted in a timely manner to ensure the accuracy of inventory data. This article will introduce how to use PHP to write the daily inventory function code in a simple inventory management system.

2. Database design
Before starting to write code, we first need to design a database to store inventory data. In this article, we simplify the database structure and include only the following two tables: product table and inventory table.

Product table (products):

• id: product ID, primary key
• name: product name
• price: product price
• quantity: Product quantity

Inventory table (inventory):

• id: inventory ID, primary key
• product_id: product ID, foreign key
• quantity: inventory quantity

3. Code implementation

1. Connect to database

bac091f9ac39516bfbd6e83682a1df39connect_error) {
die("Connection failed: " . $conn->connect_error);
}
?>

2. Get the product list

b7721e7377e70735d18a78d87131060dquery($sql);

if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {

  echo "商品ID: " . $row["id"]. " - 商品名称: " . $row["name"]. " - 商品价格: " . $row["price"]. "<br>";

}
} else {
echo "0 results";
}
?>

3. Counting inventory
   Before taking inventory, we first need to select a product for inventory.

a331b382486e688b420a46b4c112fef1query($sql);

if ($result->num_rows > 0) {

  $row = $result->fetch_assoc();
  echo "商品ID: " . $row["id"]. " - 商品数量: " . $row["quantity"];

} else {

  echo "该商品暂无库存信息";

}
}
?>

157bbac558a7833eedb56b4dcc52ac44
92b776be7810fe3e322b667e18779035Select product:8c1ecd4bb896b2264e0711597d40766c
83e0bdadad2e3c0d52336d70b42d7a9c

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

     if ($result->num_rows > 0) {
        while($row = $result->fetch_assoc()) {
           echo "<option value='". $row["id"]. "'>". $row["name"]. "</option>";
        }
     }
  ?>

18bb6ffaf0152bbe49cd8a3620346341
797eee23c1539a14bdb4b08e2fc8ff04
f5a47148e367a6035fd7a2faa965022e

4. Summary
Through the above code example, we can implement a simple Daily inventory counting function in the inventory management system. Users can select the product to be counted, and the system will display the inventory quantity of the product. If there is no inventory information for the product in the database, the system will prompt that there is no inventory information. Based on actual needs, we can further improve functions, such as adding inventory records, generating inventory reports, etc., as well as performing data verification and security processing. I hope this article will help you understand how to use PHP to write inventory daily inventory function code.

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