Teach you to use EasyWeChat and PHP to build the voting function of WeChat mini program

Teach you to use EasyWeChat and PHP to build the voting function of WeChat mini-programs

Introduction:
With the popularity of WeChat mini-programs, more and more companies are beginning to try to develop their own mini-programs to communicate with The user interacts. Among them, the voting function is a very common and interesting application scenario. This article will teach you how to use EasyWeChat and PHP to build the voting function of the WeChat applet and provide corresponding code examples.

1. Introduction to EasyWeChat
EasyWeChat is a WeChat development toolkit based on PHP. It provides a series of simple and easy-to-use API interfaces to facilitate developers to develop WeChat public accounts, mini programs and enterprise WeChat. development. Through EasyWeChat, we can quickly build a variety of rich functions.

2. Voting function of WeChat mini program
The voting function refers to the function where users can vote on WeChat mini program and count the voting results. Generally speaking, the voting function includes the following steps:

1. Users can browse the voting content and select their own voting options;
2. After the user submits the vote, the system records the voting data and storage;
3. Users can view voting results.

3. Steps to build voting function

1. Configuring EasyWeChat
   First, introduce EasyWeChat into your PHP project and configure it according to the instructions in the official documentation. After the configuration is completed, you will be able to perform various WeChat-related operations through EasyWeChat's API.
2. Create Poll
   Create a voting interface in the mini program, including voting title and options. Users can select their voting options and submit their votes on the interface.

<!-- 创建投票页面 vote.html -->
<view>
  <view>投票标题</view>
  <view>选项1<input type="radio" name="vote" value="option1"></view>
  <view>选项2<input type="radio" name="vote" value="option2"></view>
  <button bindtap="submitVote">提交投票</button>
</view>

3. Submit a vote
   In the JavaScript file of the mini program, write the corresponding code to process the votes submitted by the user.

// 处理投票的逻辑代码 vote.js
Page({
  submitVote: function (event) {
    // 获取用户选择的投票选项
    var voteOption = event.detail.value;
    
    // 调用后端API进行投票数据的记录和存储
    wx.request({
      url: '/api/vote',
      method: 'POST',
      data: {
        option: voteOption
      },
      success: function (res) {
        if (res.data.success) {
          wx.showToast({
            title: '投票成功',
            icon: 'success'
          });
        } else {
          wx.showToast({
            title: '投票失败',
            icon: 'none'
          });
        }
      }
    });
  }
});

4. Backend API
   In the PHP project, write the corresponding backend API to handle the voting request of the mini program.

// 处理投票的后端API vote.php
<?php
// 接收小程序传递的投票选项
$option = $_POST['option'];

// 进行投票数据的记录和存储
// TODO: 根据实际需求进行投票数据的处理

// 返回投票结果给小程序
$result = array(
  'success' => true
);
header('Content-Type: application/json');
echo json_encode($result);

5. View voting results
   Create a page to view voting results in the mini program, and users can browse the voting results.

<!-- 查看投票结果页面 result.html -->
<view>
  <view>投票选项1: 100票</view>
  <view>投票选项2: 200票</view>
  <button bindtap="refresh">刷新</button>
</view>

// 处理刷新的逻辑代码 result.js
Page({
  refresh: function () {
    // 获取投票结果并更新界面
    // TODO: 调用后端API获取投票结果并更新界面
  }
});

The above are the general steps for using EasyWeChat and PHP to build the WeChat mini program voting function. Through simple configuration and coding, we can quickly implement a practical voting function. I hope this article will be helpful to everyone in the development of WeChat mini programs!

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