Mimetype
The functions in this module try to guess the content type and encoding of a file by looking for certain magic byte sequences at specific positions within the file. While this is not a bullet proof approach the heuristics used do a very good job.
This extension is derived from Apache mod_mime_magic, which is itself based on the file command maintained by Ian F. Darwin. See the source code for further historic and copyright information.
Warning
This extension has been deprecated as the PECL extension Fileinfo provides the same functionality (and more) in a much cleaner way.
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You can also view the list of all php extensions on this page.
