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LVII. Mimetype Functions
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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 derivated from Apache mod_mime_magic, which is itself based on the file command maintaind by Ian F. Darwin. See the source code for further historic and copyright information.
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You must compile PHP with the configure switch --enable-mime-magic to get support for mime-type functions. The extension needs a copy of the magic.mime as distributed with the file command. This file also part of most recent Linux distributions and usually stored in the /usr/share/misc directory.
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Name
Default
Changeable
mime_magic.magicfile
"/usr/share/misc/magic.mime"
PHP_INI_SYSTEM
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Ŀ¼ mime_content_type -- Detect MIME Content-type for a file
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mime_content_type