brianreeve/mime-type
Improves mime_type detection over fileinfo without dependencies on any system utility (such as the Linux file command).
时间：2015-01-31 15:42
silverstripe/mimevalidator
Checks uploaded file content roughly matches a known MIME type for the file extension.
时间：2014-08-01 03:16
davidpersson/mm
The PHP media library: media processing and MIME-Type/extension guessing.
时间：2014-04-02 18:31
dfridrich/php-mime-type
Simple PHP class for guessing file mime type based on file extension with ability to use in Symfony project.
时间：2014-02-25 10:39
dflydev/canal
Content analysis for the purpose of determining Internet media types.
时间：2013-01-07 16:56
zetacomponents/image-analysis
This class allows you to analyse image files in different ways. At least the MIME type of the file is returned. In some cases (JPEG, TIFF and GIF) additional information is gathered as well.
时间：2012-05-21 13:09