Fileinfo Functions

Introduktion

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.

Systemkrav

magic_open library is needed to build this extension.

Installation

Uddybende information så som nye udgivelser, downloads, kildekoder, vedligeholder information samt en CHANGELOG, kan findes her: » https://pecl.php.net/package/fileinfo

Runtime Konfiguration

Denne udvidelse har intet konfigurations-direktiv defineret i php.ini.

Ressourcetyper

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

Foruddefinerede Konstanter

Konstanterne nedenunder er defineret af denne udvidelse, og vil kun være tilgængelige når denne udvidelse enten er blevet kompileret ind i PHP eller dynamisk indsat under runtime.

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.

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