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.
These functions are available as part of the
standard module, which is always available.
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.
Tableau 1. MIME magic Configuration options
| Name | Default | Changeable |
|---|
| mime_magic.magicfile | "/usr/share/misc/magic.mime" | PHP_INI_SYSTEM |
This extension does not define any resource types.
This extension does not define any constants.
mhash
