PHP Image Uploader - IE" pjpeg" MIME类型，无法正常工作 [英] PHP Image Uploader - IE "pjpeg" MIME type, not working

问题描述

我很难使用我的图片上传脚本，让图片在Internet Explorer中上传。我一直在谷歌寻找解决方案，并添加image / pjpegmime类型似乎适用于所有人，但我已将其添加到我的代码中，仍然无法使其工作。

I am having a hard time with my image upload script, getting the images to upload in Internet Explorer. I have been searching Google for a solution and adding the "image/pjpeg" mime type seemed to work for everyone, but I have added it to my code and still cannot get it to work.

以下是我所拥有的：

$acceptedExts = array ('jpg','jpeg');

if (  in_array($ext,$acceptedExts)
  &&  (  $_FILES["uploaded_file"]["type"] == "image/pjpeg"
      || $_FILES["uploaded_file"]["type"] == "image/jpeg")
  &&  ($_FILES["uploaded_file"]["size"] < 16000000)) {

我做错了什么？

谢谢！

推荐答案

试试 var_dump（$ _ FILES ['uploaded_file']）以确切了解IE的发送方式。它可能是 image / jpg 或完全不同的东西。但是，使用用户提供的 ['type'] 字段进行验证是不好的形式。伪造这种价值是微不足道的。更好地使用服务器端方法来确定文件类型，例如 get_image_size（） 或 FileInfo 库其中返回文件的真实mime类型。

Try a var_dump($_FILES['uploaded_file']) to see exactly what IE's sending. It may be image/jpg or something completely different. However, it's bad form to use the user-provided ['type'] field for validation. It's trivial to forge that value. Better use a server-side method to figure out file type, such as get_image_size() or the FileInfo library, both of which return the true mime-type of the file.

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