ajax无刷新上传图片返回图片名

Question

我已经实现了上传图片到后台，就是不知道怎么获取后台上传的图片名，后台是用时间戳的，不知道这样图片文件大的话会不会有延时，延时的话前台用时间戳也不太好吧，希望能人帮我完善下代码

HTML

<input type="file" id="upfile" oninput="myFunction()">
<script>
function uploadPhoto() {
    $("#upfile").click();
}
function myFunction() {
    var fd = new FormData();
    fd.append("upload", 1);
    fd.append("upfile", $("#upfile").get(0).files[0]);
    $.ajax({
      url: "content/templates/Joe/inc/doupload.php",
      type: "POST",
      processData: false,
      contentType: false,
      data: fd,
      success: function(d) {
        console.log(d);
      }
    });
}
</script>

PHP

<?php
if (isset($_POST['upload'])) {
  var_dump($_FILES);
  move_uploaded_file($_FILES['upfile']['tmp_name'], 'up_tmp/'.time().'.png');

  exit;
}
?>

Answer 1

<?php

if (isset($_POST['upload'])) {
  
  header('content-type:application/json');
  $filename = time().'.png';
  move_uploaded_file($_FILES['upfile']['tmp_name'], 'up_tmp/'.$filename);

 
  echo json_encode(['code' => 0, 'filename' => $filename])
  exit;

}

?>