How to use PHP to develop the real estate query function of WeChat applet?

How to use PHP to develop the real estate query function of WeChat applet?

With the rise of WeChat mini programs, more and more developers have begun to expand their business to WeChat mini programs. Among them, property inquiry is a very common functional requirement. This article will introduce how to use PHP to develop the real estate query 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 property information. Suppose our table is named "houses" and includes the fields "id", "name", "location", "price", etc.

2. Connecting to the database using PHP

In the PHP code, we need to use the appropriate method to connect to the database. Database connection methods such as mysqli or PDO can be used.

// 连接数据库
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

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

3. Querying real estate information

Next, we can use SQL statements to query the real estate information in the database and store the results in an array.

// 查询数据库中的房产信息
$sql = "SELECT * FROM houses";
$result = $conn->query($sql);

$houses = array();
if ($result->num_rows > 0) {
    // 将查询结果存储到数组中
    while($row = $result->fetch_assoc()) {
        $house = array(
            "id" => $row["id"],
            "name" => $row["name"],
            "location" => $row["location"],
            "price" => $row["price"]
        );
        array_push($houses, $house);
    }
}

4. Return JSON format data

WeChat applet uses JSON format to transmit data, so we need to convert the query results into JSON format and return it to the front end.

// 将查询结果转换为JSON格式
$response = array(
    "code" => 200,
    "message" => "查询成功",
    "data" => $houses
);

// 将数组转换为JSON字符串
$json_response = json_encode($response);

// 返回JSON字符串
header('Content-Type: application/json');
echo $json_response;

5. Using the PHP interface in the mini program

In the WeChat mini program, we can use the wx.request method to call the PHP interface and obtain the returned data .

wx.request({
    url: 'http://yourdomain.com/your_php_api.php',
    method: 'GET',
    success: function(res) {
        console.log(res.data)
        // 在这里可以处理返回的房产数据
    },
    fail: function() {
        console.log('请求失败')
    }
})

Through the above steps, we can use PHP to develop the real estate query function of the WeChat applet. Of course, this is just a simple example, and actual projects may involve more complex requirements and business logic. Hope this article can help you.

The above is the detailed content of How to use PHP to develop the real estate query function of WeChat applet?. For more information, please follow other related articles on the PHP Chinese website!