XXXVII. Fileinfo Functions

Einführung

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.

Anforderungen

magic_open library is needed to build this extension.

Installation

A short installation note: just type
$ pear install fileinfo
in your console.

Laufzeit Konfiguration

Diese Erweiterung definiert keine Konfigurationseinstellungen in der php.ini.

Resource Typen

There is one resource used in Fileinfo extension: a magic database descriptor returned by finfo_open().

Vordefinierte Konstanten

Folgende Konstanten werden von dieser Erweiterung definiert und stehen nur zur Verfügung, wenn die Erweiterung entweder statisch in PHP kompiliert oder dynamisch zur Laufzeit geladen wurde.

FILEINFO_NONE (integer)

No special handling.

FILEINFO_SYMLINK (integer)

Follow symlinks.

FILEINFO_MIME (integer)

Return a mime string, instead of a textual description.

FILEINFO_COMPRESS (integer)

Decompress compressed files.

FILEINFO_DEVICES (integer)

Look at the contents of blocks or character special devices.

FILEINFO_CONTINUE (integer)

Return all matches, not just the first.

FILEINFO_PRESERVE_ATIME (integer)

If possible preserve the original access time.

FILEINFO_RAW (integer)

Don't translate unprintable characters to a \ooo octal representation.

Inhaltsverzeichnis
finfo_buffer -- Return information about a string buffer
finfo_close -- Close fileinfo resource
finfo_file -- Return information about a file
finfo_open -- Create a new fileinfo resource
finfo_set_flags -- Set libmagic configuration options