wx.chooseImage({
 success: function(res) {
 var tempFilePaths = res.tempFilePaths
 wx.uploadFile({
 url: 'http://example.weixin.qq.com/upload', //僅為示例，非真實的接口地址
 filePath: tempFilePaths[0],
 name: 'file',
 formData:{
 'user': 'test'
 },
 success: function(res){
 var data = res.data
 //do something
 }
 })
 }
})

wx.chooseImage({
 success: function(res) {
 var tempFilePaths = res.tempFilePaths;//這里是選好的圖片的地址，是一個數(shù)組
 
 }
})

 //多張圖片上傳
 function uploadimg(data){
 var that=this,
 i=data.i?data.i:0,
 success=data.success?data.success:0,
 fail=data.fail?data.fail:0;
 wx.uploadFile({
 url: data.url, 
 filePath: data.path[i],
 name: 'fileData',
 formData:null,
 success: (resp) => {
 success++;
 console.log(resp)
 console.log(i);
 //這里可能有BUG，失敗也會執(zhí)行這里
 },
 fail: (res) => {
 fail++;
 console.log('fail:'+i+"fail:"+fail);
 },
 complete: () => {
 console.log(i);
 i++;
 if(i==data.path.length){ //當圖片傳完時，停止調(diào)用 
 console.log('執(zhí)行完畢');
 console.log('成功：'+success+" 失?。?+fail);
 }else{//若圖片還沒有傳完，則繼續(xù)調(diào)用函數(shù)
 console.log(i);
 data.i=i;
 data.success=success;
 data.fail=fail;
 that.uploadimg(data);
 }
 
 }
 });
 }

var app=getApp();
Page({
 data:{
 pics:[]
 },
 choose:function(){//這里是選取圖片的方法
 var that=this;
 wx.chooseImage({
 count: 9-pic.length, // 最多可以選擇的圖片張數(shù)，默認9
 sizeType: ['original', 'compressed'], // original 原圖，compressed 壓縮圖，默認二者都有
 sourceType: ['album', 'camera'], // album 從相冊選圖，camera 使用相機，默認二者都有
 success: function(res){
 var imgsrc=res.tempFilePaths; 
 that.setData({
 pics:imgsrc
 });
 },
 fail: function() {
 // fail
 },
 complete: function() {
 // complete
 }
 })

 },
 uploadimg:function(){//這里觸發(fā)圖片上傳的方法
 var pics=this.data.pics;
 app.uploadimg({
 url:'https://........',//這里是你圖片上傳的接口
 path:pics//這里是選取的圖片的地址數(shù)組
 });
 },
 onLoad:function(options){

 }

})

<?php 
 $imgname = $_FILES['file']['name'];
 $tmp = $_FILES['file']['tmp_name'];
 $filepath = 'now/';//記得要自己創(chuàng)建這個文件夾
 if(move_uploaded_file($tmp,$filepath.$imgname.".png")){
  echo "上傳成功";
 }else{
  echo "上傳失敗";
 }

 ?>