File::Type(3pm) - phpMan

File::Type(3pm)                User Contributed Perl Documentation                File::Type(3pm)



NAME
       File::Type - determine file type using magic

SYNOPSIS
           my $ft = File::Type->new();

           # read in data from file to $data, then
           my $type_from_data = $ft->checktype_contents($data);

           # alternatively, check file from disk
           my $type_from_file = $ft->checktype_filename($file);

           # convenient method for checking either a file or data
           my $type_1 = $ft->mime_type($file);
           my $type_2 = $ft->mime_type($data);

DESCRIPTION
       File::Type uses magic numbers (typically at the start of a file) to determine the MIME
       type of that file.

       File::Type can use either a filename, or file contents, to determine the type of a file.

METHODS
       new

       Returns a new File::Type object.

       mime_type($argument)

       Takes either data or a filename, determines what it is, and passes the argument through to
       the relevant method below. If the argument is a directory, returns undef.

       checktype_filename($filename)

       Opens $filename (if possible; if not, returns undef) and returns the MIME type of the
       file.

       checktype_contents($data)

       Matches $data against the magic database criteria and returns the MIME type of the file.

TODO
           * Add additional magic match criteria

BUGS
       None known.

       NOTES

       Some magic definitions in the mime-magic file used in the creation of this module vary
       from those in other apps (eg image/x-png not image/png).

SEE ALSO
       File::MMagic and File::MimeInfo perform the same job, but have a number of problems that
       led to the creation of this module.

       File::MMagic inlines a copy of the magic database, and uses a DATA filehandle, which
       causes problems when running under mod_perl.

       File::MimeInfo uses an external magic file, and relies on file extensions rather than
       magic to determine the mime type.

       As a result, File::Type uses a seperate module and script to create the code at the core
       of this module, which means that there is no need to include a magic database at all, and
       that it is safe to run under mod_perl.

       File::Type::Builder, which generates the code at the heart of this module.

ACKNOWLEDGMENTS
       File::Type is built from a mime-magic file from cleancode.org. The original can be found
       at <http://cleancode.org/cgi-bin/viewcvs.cgi/email/mime-magic.mime?rev=1.1.1.1>.

AUTHOR
       Paul Mison <pmison AT fotango.com>

COPYRIGHT
       Copyright 2003-2004 Fotango Ltd.

LICENSE
       Licensed under the same terms as Perl itself.



perl v5.8.8                                 2004-10-08                            File::Type(3pm)

Generated by $Id: phpMan.php,v 4.49 2006/02/26 13:18:18 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2012-05-24 04:06 @38.107.179.239 Crawled by CCBot/1.0 (+http://www.commoncrawl.org/bot.html)