Good day. I've been watching the list for a little while now, but I think
now would be a good time to jump in with a suggestion.
Don, I am going to assume that you are not viewing a 'typical' web page (one
that contains HTML, etc), but instead you are trying to view the script
itself that is trying to generate the image. If this is the case, then there
is no source to view as aforementioned by Lee. What you can try to do is to
turn on E_ALL error reporting, and then comment out the line of code you are
using to output the Content-Type for your image. If there are errors, this
should allow you to see them, along with the contents of the image itself.
When you set an image header, the web browser doesn't treat it like a
typical file, therefor in most cases -- at least the ones I've dealt with --
you won't see your PHP errors in the output.
I hope this helps. :)
On 12/26/06, Don Reeves <[EMAIL PROTECTED]> wrote:
I have actually tried to 'view source' but the option is not available
when I am viewing this page.
----- Original Message ----
From: Lee Saferite <[EMAIL PROTECTED]>
To: Don Reeves <[EMAIL PROTECTED]>; Zend Framework General <
[email protected]>
Sent: Tuesday, December 26, 2006 8:17:56 AM
Subject: Re: [fw-general] dynamic image generation
Generally, in firefox, you can 'view source' and get the actual error
message the server sent.
Send us that error please.
Lee
On 12/25/06, Don Reeves <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> I am new to the Zend Framework but am very happy with what I have seen
> so far. I have decided to try integrating the framework into an application
> that I wrote previously. Things have been going smoothly except for some
> scripts that I have written to handle dynamically displaying images. These
> images are charts that I use in the application. Here is a script that I
> have converted into a controller in my application. I access it from a url
> in the following manner:
>
> http://localhost/chart/index/dir/dir123/file/chart123.gif
>
> The controller is pretty basic at the moment:
>
> class ChartController extends Zend_Controller_Action
> {
> function indexAction()
> {
> $runDir = $this->_getParam('dir');
> $file = $this->_getParam('file');
>
> header("Content-type: image/gif");
>
> $image = imagecreatefromgif(RUNS_DIR . '/' . $runDir . '/' . $file);
>
> imagegif($image);
> imagedestroy($image);
> }
> }
>
> An almost identical script allowed me to generate the gif images
> previously. I have also confirmed that the image referenced in
> imagecreatefromgif is referencing a valid gif file.
>
> When I access the url
http://localhost/chart/index/dir/dir123/file/chart123.gif
> , I get the following message:
>
> "The image "http://localhost/chart/index/dir/dir123/file/chart123.gif "
> cannot be displayed, because it contains errors."
>
> I am curious if there is anything about the Zend Framework that prevents
> this image from displaying correctly. I was wondering if it had to do with
> how I am setting my header but examining the header using Tamper Data for
> Firefox, the headers seem to be getting set correctly. Can anyone see a
> problem with my implementation that needs to change to generate images
> dynamically within the ZF?
>
> Thanks for the help.
>
> D
>
>
>
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