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How to use WeChat applet to implement image upload function

亚连
亚连Original
2018-06-12 16:47:578065browse

This article mainly introduces to you the relevant content about the WeChat applet to implement the image upload function. The article introduces the sample code of the front-end PHP back-end in detail. It has certain reference learning value for everyone's understanding and learning. Friends in need Let’s study together.

Preface

Almost every program needs to use pictures. Next, I will introduce to you the front-end PHP back-end implementation of the WeChat applet to implement the image upload function, and share it for your reference and study. I won’t say much below, let’s take a look at the detailed introduction.

The method is as follows:

1. wxml file

<text>上传图片</text>
<view>
<button bindtap="uploadimg">点击选择上传图</button>
</view>
<image src=&#39;{{source}}&#39; style=&#39;width:600rpx; height:600rpx&#39; />

2. js File

Page({
 /**
 * 页面的初始数据
 */
 data: {  //初始化为空
 source:&#39;&#39;
 },
/**
 * 上传图片
 */
 uploadimg:function(){
 var that = this;
 wx.chooseImage({ //从本地相册选择图片或使用相机拍照
  count: 1, // 默认9
  sizeType: [&#39;original&#39;, &#39;compressed&#39;], // 可以指定是原图还是压缩图,默认二者都有
  sourceType: [&#39;album&#39;, &#39;camera&#39;], // 可以指定来源是相册还是相机,默认二者都有
  success:function(res){
  //console.log(res)
  //前台显示
  that.setData({
   source: res.tempFilePaths
  })
  // 返回选定照片的本地文件路径列表,tempFilePath可以作为img标签的src属性显示图片
  var tempFilePaths = res.tempFilePaths
   wx.uploadFile({
   url: &#39;http://www.website.com/home/api/uploadimg&#39;,
   filePath: tempFilePaths[0],
   name: &#39;file&#39;,
   
   success:function(res){
   //打印
   console.log(res.data)
   }
  })
  
  }
 })
 },)}

3. PHP backend code

// 上传图片
 public function uploadimg()
 {
   $file = request()->file(&#39;file&#39;);
  if ($file) {
   $info = $file->move(&#39;public/upload/weixin/&#39;);
   if ($info) {
    $file = $info->getSaveName();
    $res = [&#39;errCode&#39;=>0,&#39;errMsg&#39;=>&#39;图片上传成功&#39;,&#39;file&#39;=>$file];
    return json($res);
   }
  }  
 }

Running results:

console print Result:

This means the upload is successful!

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

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