wx.uploadFile 问题,请给指点一下


我看了很多博文,关于微信小程序和PHP通信的文章,但试了很久仍无法解决,哪位帮指点一下,不胜感激 
微信:
//小程序代码
openCamera:function(){
    var that = this
    wx.chooseImage({
      count: 1,
      sizeType:['original','compressed'],
      sourceType:['album','camera'],
      success:function(res)
      {
          var tempFilePaths = res.tempFilePaths
         that.setData({         
            src:tempFilePaths
         })
         wx.uploadFile({
          filePath: tempFilePaths[0],
          header: {
            "Content-Type": "multipart/form-data"
      
          },
          name: 'uploadfile_ante',
          url: 'https://364***20.goho.co/php/2021-01/xunchang/receivImg.php',
          formData:null
       })
      }
    })  
  }

//后台PHP代码
<?PHP
  $f=$_FILES['file'];
  $FILENAME="a123.jpg";
  move_uploaded_file($f['tmp_name'],$FILENAME);
 echo 1; 
 ?>

//小程序配置

img