LVII. Mimetype Functions

Introductie

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.

Afhankelijkheden

Deze functies zijn beschikbaar als onderdeel van de standard module die altijd beschikbaar is.

Installatie

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.

Configuratie tijdens scriptuitvoer

Het gedrag van deze functies kan worden beď vanuit php.ini.

Tabel 1. Mimetype configuration options

NameDefaultChangeable
mime_magic.magicfile"/usr/share/misc/magic.mime"PHP_INI_SYSTEM
For further details and definition of the PHP_INI_* constants see ini_set().

Resource types

Deze extensie maakt geen gebruik van resources.

Voorgedefineerde constanten

Deze extensie defineert geen constanten.

Inhoudsopgave
mime_content_type -- Detect MIME Content-type for a file