file_exists does not work

[Bob Sanderson]

This is my code:

if (file_exists($F name)) {
echo "<td>$Fname exists</td>";
} else {
echo "<td>$Fname does not exist</td>";
}

$Fname is the full path to the file I'm trying to verify. When I run the
script, I get the following output:

http://server1:8080/images/dwg_images/5005/5005001_.pdf does not exist

If I cut-and-paste the output path, the file is displayed, confirming that
the file does exist.

Am I doing something wrong? Any help will be greatly appreciated.

[Rik]

On Mon, 13 Aug 2007 14:36:19 +0200, Bob Sanderson
<ne**@LUVSPAMbo bsanderson.comw rote:

This is my code:

if (file_exists($F name))

http://server1:8080/images/dwg_images/5005/5005001_.pdf does not
exist

From the manual:

File_exists:
<http://nl3.php.net/file_exists>:
"As of PHP 5.0.0 this function can also be used with some URL wrappers.
Refer to Appendix O, List of Supported Protocols/Wrappers for a listing of
which wrappers support stat() family of functionality."

HTTP wrapper:
<http://nl3.php.net/manual/en/wrappers.http.p hp>
Table O.2. Wrapper SummaryAttribut e Supported
Restricted by allow_url_fopen Yes
Allows Reading Yes
Allows Writing No
Allows Appending No
Allows Simultaneous Reading and Writing N/A
Supports stat() No <---------------------------
Supports unlink() No
Supports rename() No
Supports mkdir() No
Supports rmdir() No

Ergo: file_exists does not play nice with http:// wrappers. If you want to
verify wether an URL exists, use fsockopen()(HEA D request), or CURL.
--
Rik Wasmus

[Bob Sanderson]

Rik <lu************ @hotmail.comwro te in
news:op.twzz8gz nqnv3q9@metalli um:

On Mon, 13 Aug 2007 14:36:19 +0200, Bob Sanderson
<ne**@LUVSPAMbo bsanderson.comw rote:

>This is my code:

if (file_exists($F name))

> http://server1:8080/images/dwg_images/5005/5005001_.pdf does not
exist

From the manual:

File_exists:
<http://nl3.php.net/file_exists>:
"As of PHP 5.0.0 this function can also be used with some URL
wrappers. Refer to Appendix O, List of Supported Protocols/Wrappers
for a listing of which wrappers support stat() family of
functionality."

HTTP wrapper:
<http://nl3.php.net/manual/en/wrappers.http.p hp>
Table O.2. Wrapper SummaryAttribut e Supported
Restricted by allow_url_fopen Yes
Allows Reading Yes
Allows Writing No
Allows Appending No
Allows Simultaneous Reading and Writing N/A
Supports stat() No <---------------------------
Supports unlink() No
Supports rename() No
Supports mkdir() No
Supports rmdir() No

Ergo: file_exists does not play nice with http:// wrappers. If you
want to verify wether an URL exists, use fsockopen()(HEA D request),
or CURL.

Thanks for the reply but I'm a beginner with PHP and frankly, don't
understand any of what you said. Is there another, simple way to
determine if a file exists?

[Krustov]

<comp.lang.ph p>
<Bob Sanderson>
<Mon, 13 Aug 2007 12:36:19 GMT>
<Xn************ *************** *******@69.28.1 86.158>

This is my code:

if (file_exists($F name)) {
echo "<td>$Fname exists</td>";
} else {
echo "<td>$Fname does not exist</td>";
}

$Fname is the full path to the file I'm trying to verify. When I run the
script, I get the following output:

http://server1:8080/images/dwg_images/5005/5005001_.pdf does not exist

If I cut-and-paste the output path, the file is displayed, confirming that
the file does exist.

As another user its best if you check the actual folder path rather than
a http url .

You can also write it like the below if you dont want to use else .
$pass=1;

$tempname="imag es/5005/5005001.pdf";

if (!file_exists($ tempname)) {$pass=0;}

if ($pass==0) {print "<td>$tempn ame FILE NOT FOUND</td>";}

if ($pass==1) {print "<td>$tempn ame OK</td>";}

[Rik]

On Mon, 13 Aug 2007 15:34:27 +0200, Krustov <[e-mail] wrote:

$pass=1;
if (!file_exists($ tempname)) {$pass=0;}
if ($pass==0) //
if ($pass==1) //

Euhm,
if(file_exists( )){
//something
} else {
//something else
}

Keep it legible for other coders, limit the amount of random variables
popping up in your script if you don't need them, and avoid
double/repeated comparisons...
--
Rik Wasmus

[Rik]

On Mon, 13 Aug 2007 14:59:07 +0200, Bob Sanderson
<ne**@LUVSPAMbo bsanderson.comw rote:

Thanks for the reply but I'm a beginner with PHP and frankly, don't
understand any of what you said. Is there another, simple way to
determine if a file exists?

A 'file' is not the proper term for something accessed by the HTTP
protocol. As others have indicated, if the file is on the same server, you
should use the local filesystem instead of the long way around by http.

If it is on another server however, look at the user contributed notes at
<http://www.php.net/file_exists>, several options for determining wether
an URL can be 'found' are given there.
--
Rik Wasmus

[Krustov]

<comp.lang.ph p>
<Rik>
<Mon, 13 Aug 2007 15:38:56 +0200>
<op.twz2u6xyqnv 3q9@metallium>

$pass=1;
if (!file_exists($ tempname)) {$pass=0;}
if ($pass==0) //
if ($pass==1) //

Euhm,
if(file_exists( )){
//something
} else {
//something else
}

Keep it legible for other coders, limit the amount of random variables
popping up in your script if you don't need them, and avoid
double/repeated comparisons...

Up your arse .

I dont recall asking you for your zen like wisdom on how i should or
shouldnt write code .

[Bob Sanderson]

Rik <lu************ @hotmail.comwro te in news:op.twz2u6x yqnv3q9@metalli um:

On Mon, 13 Aug 2007 15:34:27 +0200, Krustov <[e-mail] wrote:

>$pass=1;
if (!file_exists($ tempname)) {$pass=0;}
if ($pass==0) //
if ($pass==1) //

Euhm,
if(file_exists( )){
//something
} else {
//something else
}

That did it. Thanks to all.

[Krustov]

<comp.lang.ph p>
<Rik>
<Mon, 13 Aug 2007 16:36:30 +0200>
<op.twz5i4ikqnv 3q9@metallium>

Common mistake: there are very little rules, but as it is internet

No - its actually called usenet - and is merely a part of the internet .

Usenet doesnt have any heirarcial command structure and everybody is
equal with everybody having the same rights .

That is apart from people like yourself who self appoint themselves as
some sort of newsgroup arsehole who trys to dictate and decide what
other users can and cant say on 'their' newsgroup .

[Krustov]

<comp.lang.ph p>
<Jerry Stuckle>
<Mon, 13 Aug 2007 10:58:22 -0400>
<8I************ *************** ***@comcast.com >

Rik is correct. When you post sample code, you should try to ensure it
is a good example

Who decides what is good or bad on this newsgroup - you and rik ? .