VUE+axios+php实现图片上传

async uploadFiles() {
      let inputObj = document.createElement("input");
      let file = await new Promise((res) => {
        inputObj.setAttribute("id", "file");
        inputObj.setAttribute("type", "file");
        inputObj.setAttribute("name", "file");
        inputObj.setAttribute("style", "visibility:hidden");
        document.body.appendChild(inputObj);
        inputObj.click();

        document.querySelector("#file").addEventListener("change", (e) => {
          console.log(e.target.files);
          res(e.target.files)
        });
      });

      let formdata = new FormData()
      formdata.append('myFile', file[0])

      await this._http.uploadFile(formdata).then(console.log);
      document.body.removeChild(inputObj)
    },

async uploadFile(file) {
    return axios.post(`/Upload.php`,file,{
      headers: {"Content-Type": "multipart/form-data"}
    })
  }

<?php
header('content-type:text/html;charset=utf-8');
$fileInfo=$_FILES["myFile"];
$maxSize=10485760;//10M,10*1024*1024
$allowExt=array('jpeg','jpg','png','tif');
$path="uploads";
include_once 'UploadFile.php';

uploadFile($fileInfo, $path, $allowExt, $maxSize);

<?php
function uploadFile($fileInfo, $path, $allowExt, $maxSize)
{
  $filename = $fileInfo["name"];
  $tmp_name = $fileInfo["tmp_name"];
  $size = $fileInfo["size"];
  $error = $fileInfo["error"];
  $type = $fileInfo["type"];
  //服务器端设定限制
  $ext = pathinfo($filename, PATHINFO_EXTENSION);
  //目的信息
  if (!file_exists($path)) {
    mkdir($path, 0777, true);
    chmod($path, 0777);
  }
  $uniName = md5(uniqid(microtime(true), true)) . '.' . $ext;
  $destination = $path . "/" . $uniName;
  if ($error == 0) {
    if ($size > $maxSize) {
      exit("上传文件过大！");
    }
    if (!in_array($ext, $allowExt)) {
      exit("非法文件类型");
    }
    if (!is_uploaded_file($tmp_name)) {
      exit("上传方式有误，请使用post方式");
    }
    //判断是否为真实图片（防止伪装成图片的病毒一类的
    if (!getimagesize($tmp_name)) { //getimagesize真实返回数组，否则返回false
      exit("不是真正的图片类型");
    }
    if (@move_uploaded_file($tmp_name, $destination)) { //@错误抑制符，不让用户看到警告
      echo "文件" . $filename . "上传成功!";
    } else {
      echo "文件" . $filename . "上传失败!";
    }
  } else {
    switch ($error) {
      case 1:
        echo "超过了上传文件的最大值，请上传2M以下文件";
        break;
      case 2:
        echo "上传文件过多，请一次上传20个及以下文件！";
        break;
      case 3:
        echo "文件并未完全上传，请再次尝试！";
        break;
      case 4:
        echo "未选择上传文件！";
        break;
      case 7:
        echo "没有临时文件夹";
        break;
    }
  }
  return $destination;
}