How to use PHP Developer City to realize the automatic sending function of coupons

How to use PHP Developer Mall to realize the automatic coupon sending function

With the rise of e-commerce, the development of malls has attracted more and more attention. In order to attract more customers, merchants often launch various promotional activities, one of which is coupons. However, with the increase in the number of shoppers, manually sending coupons can no longer meet the needs of merchants. Therefore, it has become very important for the developer mall to implement the automatic sending function of coupons. This article will introduce how to use PHP Developer City to achieve this function.

1. Design database

First of all, before development, a database needs to be designed to store coupon-related information. The design of the database is crucial, you can refer to the following fields:

1. Coupon ID: Each coupon should have a unique ID;
2. Coupon name: used for display In the mall, attract customers;
3. Coupon face value: indicates the discount amount or percentage of the coupon;
4. Validity period: indicates the validity period of the coupon;
5. Conditions of use: Indicates the conditions for using the coupon, such as the amount of money that can be used;
6. Receipt time: indicates the time when the coupon is received;
7. Usage status: indicates the usage status of the coupon, including used, Unused, expired, etc.

2. Develop back-end interface

Next, we need to develop a back-end interface to implement the automatic sending function of coupons. These interfaces can be developed using PHP. The following is an example:

1. Get the coupon list interface:

// Connect to the database
$con = mysqli_connect ("localhost", "root", "", "shop");

// Query available coupons
$result = mysqli_query($con, "SELECT * FROM coupons WHERE status = 'available'");

// Convert the result to JSON format and return
$data = array();
while($row = mysqli_fetch_assoc($result)) {
$data[] = $row;
}
echo json_encode($data);

mysqli_close($con);
?>

2. automatic Interface for sending coupons:

// Connect to database
$con = mysqli_connect("localhost", "root", "", "shop");

// Query qualified users
$result = mysqli_query($con, "SELECT * FROM users WHERE total_purchase > 100");

// Send coupons to qualified users User
while($row = mysqli_fetch_assoc($result)) {
$coupon_id = rand(1, 100); // Randomly select a coupon
$user_id = $row['id'] ;
$valid_date = date('Y-m-d H:i:s', strtotime(' 7 days')); // Validity period is 7 days

mysqli_query($con, "INSERT INTO user_coupons (user_id , coupon_id, valid_date) VALUES ($user_id, $coupon_id, '$valid_date')");
}

mysqli_close($con);
?>

三, Front-end page display

Finally, we need to display the coupons that can be collected on the front-end page and provide a button to automatically send coupons. The following is an example:

// Get the list of coupons that can be claimed
$response = file_get_contents('http://localhost/api/get_coupons.php');
$coupons = json_decode($response, true);

// Display the coupons that can be collected
foreach($coupons as $coupon) {
echo "

<script><br> function sendCoupon(couponId) {</p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'> // 发送请求到后端接口，自动发送优惠券 var xhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 4 &amp;&amp; this.status == 200) { alert(&quot;优惠券已发送！&quot;); } }; xhttp.open(&quot;GET&quot;, &quot;http://localhost/api/send_coupon.php?coupon_id=&quot; + couponId, true); xhttp.send();</pre><div class="contentsignin">Copy after login</div></div><p>}<br></script>

Summary:

Through the above development, we can realize the automatic sending function of coupons in a mall. Merchants can set conditions for sending. For example, if the user's purchase amount exceeds a certain amount, the corresponding coupon will be automatically sent to the user. This can improve the operational efficiency of the mall and attract more customers to shop. At the same time, developers can also expand and improve this function according to their own needs.

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