如何找到与PHP文件的MIME类型？ [英] How do I find the mime-type of a file with php?

问题描述

好吧，所以我有一个index.php文件，它必须处理许多不同的文件类型。如何根据 REQUEST_URI 猜测文件类型。

如果我请求 http： //site/image.jpg ，所有请求都通过index.php重定向，看起来像这样

 <？php 
 include（'/ www / site'。$ _ SERVER ['REQUEST_URI']）; 
？> 
  

我会如何正确地工作？

<我应该根据请求的文件扩展名进行测试，还是有办法获取文件类型？

你可以肯定你只是在处理图片，你可以看看 getimagesize（） exif_imagetype（）一个PHP函数，它试图返回图像的MIME类型。

如果你不介意外部的依赖关系，你也可以看看出色的 getID3 库可以确定许多不同文件类型的MIME类型。

最后，您可以查看 mime_content_type（）函数的n - 但已被 Fileinfo PECL扩展名弃用。 p>

Ok, so I have an index.php file which has to process many different file types. how do I guess the filetype based on the REQUEST_URI.

If I request http://site/image.jpg, and all requests redirect through index.php, which looks like this

<?php
   include('/www/site'.$_SERVER['REQUEST_URI']);
?>

How would I make that work correctly?

Should I test based on the extension of the file requested, or is there a way to get the filetype?

解决方案

If you are sure you're only ever working with images, you can check out the getimagesize() exif_imagetype() PHP function, which attempts to return the image mime-type.

If you don't mind external dependencies, you can also check out the excellent getID3 library which can determine the mime-type of many different file types.

Lastly, you can check out the mime_content_type() function - but it has been deprecated for the Fileinfo PECL extension.

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