is_file() returns false for uploaded files?

[Kimmo Laine]

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($_FILE S['myfile']['tmp_name']) ? 'true' :
'false');
echo 'file_exists:' . (file_exists($_ FILES['myfile']['tmp_name']) ? 'true' :
'false');
?>

<form action="<?php echo $_SERVER['PHP_SELF'] ?>"
enctype="multip art/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
sp**@outolempi. net | Gedoon-S @ IRCnet | rot13(xv***@bhg byrzcv.arg)

[Andy Jeffries]

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($_FILE S['myfile']['tmp_name']) ? 'true' :
'false');
echo 'file_exists:' . (file_exists($_ FILES['myfile']['tmp_name']) ? 'true'
: 'false');
?>

For this use, shouldn't you be using is_uploaded_fil e 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

[Kimmo Laine]

"Andy Jeffries" <ne**@andyjeffr ies.co.uk> wrote in message
news:pa******** *************** *****@andyjeffr ies.co.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($_FILE S['myfile']['tmp_name']) ? 'true' :
'false');
echo 'file_exists:' . (file_exists($_ FILES['myfile']['tmp_name']) ?
'true'
: 'false');
?>

For this use, shouldn't you be using is_uploaded_fil e 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
sp**@outolempi. net | Gedoon-S @ IRCnet | rot13(xv***@bhg byrzcv.arg)

[milahu]

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.

[Kimmo Laine]

"milahu" <mi****@googlem ail.com> wrote in message
news:11******** *************@u 72g2000cwu.goog legroups.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_f iles
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_f iles() 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
sp**@outolempi. net | Gedoon-S @ IRCnet | rot13(xv***@bhg byrzcv.arg)

[milahu]

> 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_f ile() 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.

[Kimmo Laine]

"milahu" <mi****@googlem ail.com> wrote in message
news:11******** **************@ i40g2000cwc.goo glegroups.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_f ile() that much? PHP is not always as
logical as one would like it to be...

Nothing. move_uploaded_f iles 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
sp**@outolempi. net | Gedoon-S @ IRCnet | rot13(xv***@bhg byrzcv.arg)