How to use PHP to implement input box operations in WeChat mini programs

With the continuous development of WeChat mini programs, more and more developers are beginning to pay attention to how to implement various functions in mini programs. Among them, input box operation is one of the common functions in mini programs. This article will introduce how to use PHP to implement input box operations in WeChat mini programs.

1. Create a mini program

First, we need to create a WeChat mini program, make sure that a developer account has been registered, and the corresponding AppID and AppSecret have been obtained. This information will be used in subsequent operations.

2. Add an input box to the mini program

To add an input box to the mini program page, you can use the input component provided by the WeChat mini program. The specific code is as follows:

<view class="container">
  <input placeholder="请输入内容" bindinput="inputListener" />
</view>

Among them, the bindinput attribute is bound to an event processing function named inputListener.

3. Create PHP file

Create a PHP file named inputHandler.php to process the content entered by the user in the applet. The code example is as follows:

<?php
// 获取用户输入
$content = $_GET['content'];

// 在这里进行对用户输入的处理，如将其保存到数据库中

// 返回处理结果
$response = array('code' => '0', 'message' => 'success');
echo json_encode($response);
?>

4. Bind event listener

In the corresponding page of the mini program, add the following js code to process the user's input in the input box The entered content is sent to the background for processing:

Page({
  // input监听器
  inputListener: function(e) {
    var that = this;
    var content = e.detail.value;
    wx.request({
      url: 'https://xxx.com/inputHandler.php',
      data: {
        content: content
      },
      success: function(res) {
        // 在这里处理后台返回的数据
        console.log(res.data);
      }
    })
  }
})

Among them, the url attribute needs to be replaced with the address of your own PHP file. When the user enters content in the input box, the inputListener event processing function will be triggered, sending the input content to the background for processing and returning the result.

5. Test

After completing the above steps, you can test in the WeChat developer tools. When the user enters content in the input box, the console will output the processing results returned by the background.

Summary:

This article introduces how to use PHP to implement input box operations in WeChat mini programs. By setting the input component and binding the input listener, when the user inputs content, the request is sent to the PHP file for processing and the processing result is returned. In actual development, you can also customize and process PHP files according to your own needs.

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