How to use PHP to implement the registration system of WeChat applet?

How to use PHP to implement the registration system for WeChat mini programs?

As an emerging application form, WeChat mini programs are increasingly popular among developers and users. Among them, the registration system is a common requirement, such as event registration, course registration, etc. In this article, we will explain how to use PHP to implement the WeChat applet registration system and provide specific code examples.

First, we need to create a database table to store registration information. You can create a table named "sign_up" in the MySQL database, including the following fields:

CREATE TABLE sign_up (
    id INT(10) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(30) NOT NULL,
    phone VARCHAR(11) NOT NULL,
    email VARCHAR(50) NOT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

Next, we need to create a registration page in the WeChat applet, including entering your name, mobile phone number, and email address form. When submitting the form, we need to call the PHP interface to store the information filled in by the user into the database.

The following is a simple sample code that demonstrates how to use PHP to receive registration information and store it in the database:

<?php
// 获取POST请求参数
$name = $_POST['name'];
$phone = $_POST['phone'];
$email = $_POST['email'];

// 连接数据库
$servername = 'localhost';
$username = 'root';
$password = 'password';
$dbname = 'your_database_name';

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

// 插入数据
$sql = "INSERT INTO sign_up (name, phone, email) VALUES ('$name', '$phone', '$email')";
if ($conn->query($sql) === TRUE) {
    echo "报名成功";
} else {
    echo "报名失败: " . $conn->error;
}

$conn->close();
?>

In the WeChat applet, we use wx.request () function to send a POST request and submit the information filled in by the user to the above PHP interface:

wx.request({
  url: 'http://your_domain.com/submit.php',
  method: 'POST',
  data: {
    name: '张三',
    phone: '13812345678',
    email: 'zhangsan@example.com'
  },
  success: function(res) {
    console.log(res.data); // 打印服务器返回的结果
  }
})

In the above code example, we assume that the URL of the PHP interface is http://your_domain. com/submit.php, you need to replace it with the URL of your actual deployment.

Through the above steps, we can use PHP to implement the WeChat applet registration system. When the user fills in the registration information and submits the form in the mini program, the PHP interface will receive the request, store the information filled in by the user into the database, and return the corresponding results.

Of course, the above is just a simple example, you can modify and expand the code according to actual needs. I hope this article can help you understand how to use PHP to implement the registration system for WeChat mini programs.

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