检查文件扩展名 [英] Check the file extension

问题描述

我想检查上传文件的扩展名。


我使用file属性上传bmp图像。现在我要将文件上传文本编辑为bmp文件到gif ...


示例：我上传c：/sample.bmp现在我手动编辑文件输入框为c ：/sample.gif我上传了这个。


现在我想查看orignial文件ext ..在javascript或php中有什么办法.....

Hi,

I want to check the extension of uploaded file.

I upload the bmp image using file property. Now i am going to edit the file upload text as bmp file into gif...

example : i upload c:/sample.bmp now i manually edit the file input box as c:/sample.gif and i upload this one.

Now i want to check the orignial file ext.. is there any way in javascript or php.....

推荐答案

你好。


你是什么意思：手动编辑文件输入框？

你在做什么后对这些文件做什么上传它们？


您需要更好地解释这一点。

Hi.

What do you mean by: "manually edit the file input box"?
What are you doing with the files after you upload them?

You need to explain this a lot better.

Heya，maheswaran。


尝试验证文件本身的mime类型，而不是验证扩展名。 Fileinfo扩展程序非常适用于此（ http://php.net/finfo_file ）。

Heya, maheswaran.

Instead of validating the extension, try validating the mime-type of the file itself. The Fileinfo extension works very well for this (http://php.net/finfo_file).

hi


使用以下内容作为if条件

hi

use the following for your if condition

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