Podręcznik PHP
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# LVIII. Mimetype Functions

# Wprowadzenie

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.

# Wymagania

Do zbudowania tego rozszerzenia nie są wymagane żadne zewnętrzne biblioteki.

# Instalacja

You must compile PHP with the configure switch `--with-mime-magic` to get support for mime-type functions. The extension needs a copy of the simplified `magic` file that is distributed with the Apache httpd.

> Notatka: The configure option has been changed from `--enable-mime-magic` to `--with-mime-magic` since PHP 4.3.2

> Notatka: This extension is not capable of handling the fully decorated `magic` file that generally comes with standard Linux distro's and is supposed to be used with recent versions of `file` command.

> Note to Win32 Users: In order to use this module on a Windows environment, you must set the path to the bundled `magic.mime` file in your `php.ini`.

> Przykład 1. Setting the path to `magic.mime`
>     mime_magic.magicfile = "$PHP_INSTALL_DIR\magic.mime"

> Remember to substitute the `$PHP_INSTALL_DIR` for your actual path to `PHP` in the above example. e.g. `c:\php`

# Konfiguracja startowa

Na działanie tych funcji wpływają ustawienia zawarte w pliku `php.ini`.

Tabela 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().

# Typy zasobów

To rozszerzenie nie posiada żadnych rodzajów zasobów.

# Predefiniowane stałe

To rozszerzenie nie posiada żadnych stałych.

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mhash | Początek rozdziału | mime_content_type