Same problem here! Help needed!

***** *****

win2000 (german)
Apache/2.2.2 (Win32) 
PHP/5.1.4

***** *****

php.ini includes "extension=php_fileinfo.dll",
paths are set accurate, the file magic.mime is in the right directory

***** php-code: *****

$finfo = finfo_open(FILEINFO_MIME);
foreach (glob("*") as $filename) {
   echo finfo_file($finfo, $filename) . "\n";
}
finfo_close($finfo);

***** error: *****

Warning: finfo_open(): Failed to load magic database at '(null)'. in test.php on line 11

***** by the way *****

By using "mime_content_type()" there is an error, too:

Warning: mime_content_type(): mime_magic not initialized

***** *****

I need a way to identify my files urgently ...

I had the same problem using php 5.1.4 on win2k. Just found that it works if you give the full path to the magic.mime file *without* the extension.i.e.:
 "C:\Program Files\PHP\extras\magic"
fileinfo will add it for you.
I guess php manual is rather unclear about this.

The extension is something that's added automatically by the 
library, you don't need to specify it.

take note that finfi_open() or the finfo constructor takes a second optional argument (a string) where you can specify the path of your magic.mime. if you don't specify one, php will use the value in the MAGIC environment variable, not the mime_magic.magicfile

i use a windows system as well, and as noted by south dot minds at gmail dot com, you need to remove the ".mime" extension type to make it work

oops, i meant to say finfo_open()

Here is how I resolved this issue without extra coding.

Warning: finfo_open() [function.finfo-open]: Failed to load magic database at '(null)'.

$finfo = finfo_open(FILEINFO_MIME, 'C:/wamp/php/extras/magic');

Where file "magic.mime" exists in "C:/wamp/php/extras/magic"

I'm sorry I did not explain that "C:/wamp/php/extras/magic" is actually directory path "C:/wamp/php/extras/" with magic appended to the directory path. Removing .mime from the filename did not work for me.

Removing the extension from "magic.mime" file worked for me (i.e. change to just "magic").

Sorry, I was to quick to say it worked.
The mime.magic provided with php is not enough.
Actually what I needed to get it working on windows was four magic database files (magic.mime, magic.mime.mgc, magic, magic.mgc).
In call to the finfo_open just specify "c:/path/.../magic", skipping the extensions.

I confirm that with wamp5 (Apache/2.2.4 (Win32) PHP/5.2.3)
I had to download http://sourceforge.net/project/showfiles.php?group_id=23617&package_id=1
8878 and put the four magic
database files (magic.mime, magic.mime.mgc, magic, magic.mgc) in the good directory. I had to use realpath($myfilename) instead of $myfilename and then it seems to be ok.
Here is a script

<?php
$name="./sample/message.eml";
if( file_exists($name) ) {
  $finfo = finfo_open(FILEINFO_MIME,"C:/wamp/php/extras/magic");
  var_dump($finfo);
  $mime=finfo_file($finfo, realpath($name));
  finfo_close($finfo);
  echo $mime;
} else {
echo "nop";
}
?>

i need to install libmagic i am getting error 
call to undefined function finfo_open() i need some help

Thank you all. Following your instructions, here is what i did get it work:

1. Go to http://pecl4win.php.net/list.php to get php_fileinfo.dll and have this dll declared in php.ini (extension=php_mime_magic.dll)

2. Go to http://sourceforge.net/project/showfiles.php?group_id=23617&package_id=18878, extract the downloaded file. Look for files "magic" and "magic.mime" and have them under php extras directory. (Note: php.2.5 magic.mime gave wrong mime type).

3. My script looks like:

$handle = finfo_open(FILEINFO_MIME,'c:\php52\extras\magic');
$mime_type = finfo_file($handle,$file);

Regards

I have just followed these instructions and successfully setup on WAMP5 running PHP 5.2.4. I did the following:

1. Enable php extensions for php_fileinfo and php_mime_magic.
2. Download the 4 magic files from http://sourceforge.net/project/showfiles.php?group_id=23617&package_id=18878 and place in the extras directory. In my case c:\wamp\php\extras

Some of that might not be necessary but it worked for me.

make sure touse single quotes on the path to magic, or else it will still fail.

I installed the GNUwin32 package, but it only provided magic and magic.mgc - I am still missing magic.mime and magic.mime.mgc.  Any thoughts on where to get them?  Thanks.

I also can't find 2 of the 4 magic files. Any clues to why this is ?
Thanks.

You need to download an older version of the library. The latest version that includes all 4 files is 4.23:
http://downloads.sourceforge.net/gnuwin32/file-4.23-bin.zip?modtime=1213447945&big_mirror=1

You may also need to set the MAGIC environment variable, as detailed here:
http://usphp.com/manual/en/fileinfo.installation.php

Using these two links fixed it for me :)

dfsdf

awssddsdasdad