Introducción
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.
Requerimientos
Estas funciones están disponibles como parte del módulo estandar,
el cual está siempre disponible.
Instalación
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.
Configuración en tiempo de ejecución
The behaviour of these functions is affected by settings in php.ini.
Tabla 1. Mimetype configuration options
| Name | Default | Changeable |
|---|
| mime_magic.magicfile | "/usr/share/misc/magic.mime" | PHP_INI_SYSTEM |
For further details and definition of the PHP_INI_* constants see
ini_set().
Tipos de recursos
Esta extensión no define ningún tipo de recurso.
Constantes predefinidas
Esta extensión no define ninguna constante.
mhash
