Image Header

[Uros Gruber]

Hi!

I don't know if this is ok, so can somebody give me some explanation.

I made some php script to get Header from http request. When I request
some image header looks like:

HTTP/1.1 200 OK
Date: Mon, 11 Aug 2003 17:24:14 GMT
Server: Apache/1.3.27 (Unix) PHP/4.3.1
Last-Modified: Fri, 25 Oct 2002 09:37:57 GMT
ETag: "1cd2ce-1253f-3db910f5"
Accept-Ranges: bytes
Content-Length: 75071
Connection: close
Content-Type: image/jpeg
===========================================

Then I made some php script to showing images and when i request for
example img.php?name=somejpg.jpg header looks like this:


HTTP/1.1 200 OK
Date: Mon, 11 Aug 2003 17:24:14 GMT
Server: Apache/1.3.27 (Unix) PHP/4.3.1
X-Powered-By: PHP/4.3.1
Connection: close
Content-Type: text/html
===========================================

Why?. Image showed correctly and here is code I have in img.php


=================================

$file = $_GET['name'];

if (ereg('(\.\.)^(\/+)',$file)) {
die();
}

$file = dirname(__FILE__).'/'.$file;
$size = getimagesize ($file);
$fp = fopen($file, "rb");

if ($size && $fp) {
header("Content-type: {$size['mime']}");
fpassthru($fp);
exit;
} else {

}

So I set Content-type: but on request is html/text. And one more
question. Is it possible that IE or mozzila cache those kind of
images. For example that I ser Cache header option..

--
tia,
Uros

[Chris Shiflett]

--- Uros Gruber <uros.gruber@sir-mag.com> wrote:

> I made some php script to get Header from http request. When I
> request some image header looks like:
>
> HTTP/1.1 200 OK
> Content-Type: image/jpeg
>
> Then I made some php script to showing images and when i
> request for example img.php?name=somejpg.jpg header looks
> like this:
>
> HTTP/1.1 200 OK
> Content-Type: text/html

Your instincts serve you well. You want the Content-Type header to be correct,
as you are currently telling the Web client that you are sending HTML, and then
(I assume) dumping a bunch of binary data.

> Image showed correctly

On what browser? IE has earned a poor reputation for its disregard for content
type, so IE's bug may be conveniently counteracting your own by coincidence.

> here is code I have in img.php
>
> $size = getimagesize ($file);
> header("Content-type: {$size['mime']}");

OK, I see that the documentation is somewhat confusing here (I may try to fix
this). The key phrase in the manual preceding this example is:

"Beginning with PHP 4.3, getimagesize() also returns an additional parameter,
mime, that corresponds with the MIME type of the image."

So, before we continue, can you tell us what version of PHP you are using? You
might want to just do this:

header('Content-Type: image/jpeg');

Hope that helps.

Chris

=====
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[Uros Gruber]

Hello,

Monday, August 11, 2003, 10:42:58 PM, you wrote:

CS> --- Uros Gruber <uros.gruber@sir-mag.com> wrote:

>> I made some php script to get Header from http request. When I
>> request some image header looks like:
>> Content-Type: text/html

CS> Your instincts serve you well. You want the Content-Type header to be correct,
CS> as you are currently telling the Web client that you are sending HTML, and then
CS> (I assume) dumping a bunch of binary data.

>> Image showed correctly

CS> On what browser? IE has earned a poor reputation for its disregard for content
CS> type, so IE's bug may be conveniently counteracting your own by coincidence.
On both mozzila and IE.

>> here is code I have in img.php
>>
>> $size = getimagesize ($file);
>> header("Content-type: {$size['mime']}");

CS> OK, I see that the documentation is somewhat confusing here (I may try to fix
CS> this). The key phrase in the manual preceding this example is:

CS> "Beginning with PHP 4.3, getimagesize() also returns an additional parameter,
CS> mime, that corresponds with the MIME type of the image."

CS> So, before we continue, can you tell us what version of PHP you are using? You
CS> might want to just do this:

Server: Apache/1.3.27 (Unix) PHP/4.3.1
I check that i get correct MIME, so header is OK. Also if i manualy
set to jpeg, nothing helps.

CS> header('Content-Type: image/jpeg');

I think I'm stuck here.

best regards

Uros