is_file() returns false for uploaded files?

Running IIS 6 on Windows 2003 server.

After an update to the most recent version of php 5.1.2, for some reacon
a function handling uploaded files using is_file stopped working. is_file
failed for existing files. I fixed it by changing is_file to
file_exists, then it worked again. Prior to the update, in the older
version, presumably it was 5.0.1, is_file worked just fine without
problems.

<?php
echo 'is_file:' . (is_file($_FILES['myfile']['tmp_name']) ? 'true' :
'false');
echo 'file_exists:' . (file_exists($_FILES['myfile']['tmp_name']) ? 'true' :
'false');
?>

<form action="<?php echo $_SERVER['PHP_SELF'] ?>"
enctype="multipart/form-data" method="post">
<input type="file" name="myfile" />
<input type="submit" />
</form>

Submitted a bug report already http://bugs.php.net/bug.php?id=37118 but if
someone has any ideas what's going on here please reply.

--
"ohjelmoija on organismi joka muuttaa kofeiinia koodiksi" -lpk
spam@outolempi.net | Gedoon-S @ IRCnet | rot13(xvzzb@bhgbyrzcv.arg)

On Tue, 18 Apr 2006 12:54:08 +0300, Kimmo Laine wrote:
> Running IIS 6 on Windows 2003 server.
>
> After an update to the most recent version of php 5.1.2, for some reacon a
> function handling uploaded files using is_file stopped working. is_file
> failed for existing files. I fixed it by changing is_file to file_exists,
> then it worked again. Prior to the update, in the older version,
> presumably it was 5.0.1, is_file worked just fine without problems.
>
> <?php
> echo 'is_file:' . (is_file($_FILES['myfile']['tmp_name']) ? 'true' :
> 'false');
> echo 'file_exists:' . (file_exists($_FILES['myfile']['tmp_name']) ? 'true'
> : 'false');
> ?>

For this use, shouldn't you be using is_uploaded_file anyway?

Cheers,


Andy


--
Andy Jeffries MBCS CITP ZCE | gPHPEdit Lead Developer
http://www.gphpedit.org | PHP editor for Gnome 2
http://www.andyjeffries.co.uk | Personal site and photos

"Andy Jeffries" <news@andyjeffries.co.uk> wrote in message
news:pan.2006.04.18.11.54.20.716987@andyjeffries.c o.uk...
> On Tue, 18 Apr 2006 12:54:08 +0300, Kimmo Laine wrote:
>> Running IIS 6 on Windows 2003 server.
>>
>> After an update to the most recent version of php 5.1.2, for some reacon
>> a
>> function handling uploaded files using is_file stopped working. is_file
>> failed for existing files. I fixed it by changing is_file to file_exists,
>> then it worked again. Prior to the update, in the older version,
>> presumably it was 5.0.1, is_file worked just fine without problems.
>>
>> <?php
>> echo 'is_file:' . (is_file($_FILES['myfile']['tmp_name']) ? 'true' :
>> 'false');
>> echo 'file_exists:' . (file_exists($_FILES['myfile']['tmp_name']) ?
>> 'true'
>> : 'false');
>> ?>
>
> For this use, shouldn't you be using is_uploaded_file anyway?
>

Possibly so, but that does not remove the bug. It's a piece of code I've
done some years ago that has worked fine even though a it's not perfect.
Still I'd like to be able to get similar results with is_file and
file_exists regardless of the file being user upload or not.

If this is not a bug but a feature, I'd like to see it explained in the
manual just what it means. ATM, it says in the manual: "is_file -- Tells
whether the filename is a regular file". So, what IS a regular file? What's
the difference between file_exists and is_file because they return different
results. I don't get it. And what bothers me the most is that up to this
point is_file has returned true. Why change it?

--
"ohjelmoija on organismi joka muuttaa kofeiinia koodiksi" -lpk
spam@outolempi.net | Gedoon-S @ IRCnet | rot13(xvzzb@bhgbyrzcv.arg)

The uploaded file is stored in a temporary folder outside your usual
PHP `filesystem'.
IIS seems to deny direct access to this folder, so you have to stick to
PHP's special functions for handling file uploads.

is_file() checks for regular files and returns false on directories or
symlinks, while file_exists() returns true, if the file, link or
directory exists.

"milahu" <milahu@googlemail.com> wrote in message
news:1145365711.177670.64360@u72g2000cwu.googlegro ups.com...
> The uploaded file is stored in a temporary folder outside your usual
> PHP `filesystem'.
> IIS seems to deny direct access to this folder, so you have to stick to
> PHP's special functions for handling file uploads.
>

So now copy() is a special function? I use just copy to handle uploaded
files, in that particular script. I could fix it to use move_uploaded_files
but it works now. "If it works don't fix it." And IIS does not deny access
to it as I can access it with copy. I don't have to use
move_uploaded_files() if that is what you mean by special function.

> is_file() checks for regular files and returns false on directories or
> symlinks, while file_exists() returns true, if the file, link or
> directory exists.

But an uploaded file is neither a symlink (windows filesystem has no
symlinks) nor a directory, it's just a normal file. Now what exactly is the
determination of a "regular file", if the uploaded file is not one?

--
"ohjelmoija on organismi joka muuttaa kofeiinia koodiksi" -lpk
spam@outolempi.net | Gedoon-S @ IRCnet | rot13(xvzzb@bhgbyrzcv.arg)

> So now copy() is a special function?
Yes, it's holy for usual files, but not for uploaded ones. Why do you
just dislike move_uploaded_file() that much? PHP is not always as
logical as one would like it to be...

> But an uploaded file is neither a symlink [...]
Already tested with is_link()? Win / NTFS doesn't support symlinks, so
I guess Apache emulates 'em.

"milahu" <milahu@googlemail.com> wrote in message
news:1145531261.880053.317800@i40g2000cwc.googlegr oups.com...
>> So now copy() is a special function?
> Yes, it's holy for usual files, but not for uploaded ones. Why do you
> just dislike move_uploaded_file() that much? PHP is not always as
> logical as one would like it to be...

Nothing. move_uploaded_files and copy are not the issue here, both work just
fine. The problem is that is_file does not recognize an uploaded file as a
file, while file_exists does and I'd like to know why.

>> But an uploaded file is neither a symlink [...]
> Already tested with is_link()? Win / NTFS doesn't support symlinks, so
> I guess Apache emulates 'em.

Nothing to do with Apache either, using IIS 6 as I already said in my first
post.

--
"ohjelmoija on organismi joka muuttaa kofeiinia koodiksi" -lpk
spam@outolempi.net | Gedoon-S @ IRCnet | rot13(xvzzb@bhgbyrzcv.arg)