How to use PHP to develop the ticket booking function of WeChat applet?

How to use PHP to develop the ticket booking function of WeChat applet?

With the rapid development of WeChat mini programs, more and more companies are beginning to use mini programs to conduct business. Among them, ticket booking is a very common requirement. This article will introduce how to use PHP to develop the ticket booking function of WeChat applet and provide specific code examples.

1. Create database table

First, we need to create a table in the database to store ticket booking related information. You can use the following SQL statement to create:

CREATE TABLE `ticket` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `phone` varchar(20) NOT NULL,
  `quantity` int(11) NOT NULL,
  `create_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

2. Develop the front-end page of the mini program

In the front-end page of the mini program, you need to design a ticket booking form for users Enter relevant information. You can use the following code example:

<view>
  <form bindsubmit="formSubmit">
    <view>姓名</view>
    <input bindinput="handleNameInput" placeholder="请输入姓名" />
    <view>联系电话</view>
    <input bindinput="handlePhoneInput" placeholder="请输入联系电话" />
    <view>票数</view>
    <input bindinput="handleQuantityInput" placeholder="请输入票数" />
    <button formType="submit">提交</button>
  </form>
</view>

In the above code example, by binding the event and the input box, the name, contact number, and ticket number entered by the user are obtained.

3. Develop the backend interface of the mini program

Next, we need to use PHP to develop the backend interface that handles data submitted by the front end of the mini program. You can use the following code example:

<?php
header('Content-Type: application/json');

$dbHost = 'localhost';
$dbName = 'your_database';
$dbUser = 'your_username';
$dbPass = 'your_password';

// 连接数据库
$conn = new PDO("mysql:host=$dbHost;dbname=$dbName", $dbUser, $dbPass);

// 处理POST请求
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
  $name = $_POST['name'];
  $phone = $_POST['phone'];
  $quantity = $_POST['quantity'];

  // 插入数据到数据库
  $stmt = $conn->prepare("INSERT INTO ticket (name, phone, quantity) VALUES (:name, :phone, :quantity)");
  $stmt->bindParam(':name', $name);
  $stmt->bindParam(':phone', $phone);
  $stmt->bindParam(':quantity', $quantity);
  $stmt->execute();

  // 返回成功信息
  $response = array(
    'code' => 0,
    'message' => '提交成功'
  );
  echo json_encode($response);
}

$conn = null;
?>

In the above code example, we first bind the relevant information of the database to the code by connecting to the database. Then, by processing the POST request, the data submitted by the front end of the mini program is obtained and inserted into the database.

4. Set the request address of the mini program

Finally, we need to set the request address of the mini program in the background management interface of the mini program. Fill in the backend interface address developed previously in the corresponding position.

So far, we have completed the development of the ticket booking function of the WeChat applet using PHP. After the user fills in the relevant information in the mini program and submits it, the data will be saved in the database.

Summary:

This article introduces how to use PHP to develop the ticket booking function of WeChat applet. We first created the database table, and then developed the front-end page and back-end interface of the mini program. Through the cooperation of the front and back ends, the ticket booking function is implemented and the data is saved in the database. If you need to develop similar functions in the future, you can refer to the methods in this article for development.

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