Using PHP to develop WeChat applet reservation function

With the rapid development of WeChat mini programs, many companies or individual developers have begun to shift their focus to mini program development. Among them, the appointment function is an indispensable function for many enterprises or individual developers. This article will introduce the implementation method of developing WeChat applet reservation function based on PHP language.

1. Prepare the development environment

Before starting development, you need to prepare the following development environment:

1.PHP running environment

2.MAMP or XAMPP Environment

3. WeChat Mini Program Development Tool

4. WeChat Official Account Developer Platform Account

2. Start coding

1. Create database

Create a database named reservation in the MAMP or XAMPP environment.

2. Create a data table

Create a data table named appointment in the reservation database, containing the following fields:

id: auto-increment unique id

name: Name of the person making the reservation

phone: Phone number of the person making the reservation

date: Date of reservation

time: Time of reservation

3. Write PHP interface

Create a folder named reservation in the htdocs directory, and create a file named appointment.php in this folder. The specific implementation steps are as follows:

①Connect to the database

$con=mysqli_connect("localhost","root","password","reservation");

②Process the request

First, get the parameters passed by the mini program:

$name=$_POST["name"];
$phone=$_POST["phone"];
$date=$_POST["date"];
$time=$_POST["time"];

Then, The obtained parameters are inserted into the appointment data table:

$sql= "INSERT INTO appointment(name,phone,date,time) VALUES ('$name','$phone','$date','$time')";
$result = mysqli_query($con,$sql);

Finally, the request result is returned and the database connection is closed:

if($result){
  echo "1"; //成功
}else{
  echo "-1"; //失败
}
mysqli_close($con);

4. Call the PHP interface

in the WeChat applet In the development tool, the method of calling the PHP interface is as follows:

① Define the global variable baseUrl in the app.js file:

globalData: {
    baseUrl: 'http://localhost/reservation/appointment.php'
}

② In the javascript code of the reservation page, call the PHP interface:

submitAppointment:function(){
  var that=this;
  wx.request({
    url: getApp().globalData.baseUrl,
    method:'POST',
    data:{
      name:that.data.name,
      phone:that.data.phone,
      date:that.data.date,
      time:that.data.time
    },
    success:function(res){
      if(res.data==1){
        wx.showToast({
           title: '预约成功',
           icon:'success'
        })
      }else{
        wx.showToast({
           title: '预约失败',
           icon:'error'
        })
      }
    }
  })
}

3. Test function

In the WeChat mini program development tool, you can use the data simulator to simulate submitting reservation information, or you can run it on the mini program to test whether the reservation function is normal. If everything is normal, you can deploy the mini program and put it online for use.

4. Summary

This article uses PHP language to implement the WeChat mini program reservation function. Of course, this is just a simple example. In fact, the reservation function can be implemented in many ways, and you can choose the implementation method that suits you according to different needs. Whether it is the appointment function or other functions, mastering the PHP language can bring more diverse choices to the development of WeChat mini programs.

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