imagegif displays stream of code instead of the gif

141 Posts

Glyn Reply #1, 8 years, 7 months ago

When I use imagegif to display a image on the page I get a stream of code with in the browser such as:

GIF87a�b�lz|��䌞��|��t��윦��܄

Where am I going wrong?

The code within my snippet is:

$cog1 = imagecreatefromgif('xresource/images/icons/tocLay1_contPerfImprov.gif');
$imageContainer = imagecreatetruecolor(180, 98);
imagecopy($imageContainer, $cog1, 0, 0, 0, 0, 180, 98);
header ('Content-Type: image/gif');
imagegif($imageContainer);
imagedestroy($cog1);
imagedestroy($imageContainer);
return;

If I run this code outside of MODX it executes well. Ideally I would like the above to work within a

<img src="[[displayMygif]]">

I have tried to call a external file containing the above within MODX as follows:

require_once('xGraphic/showaGif.php');
return;

This gave me the similar stream of code as above.

If MODX is incapable of allowing the above to work. How do I call this as a external script within MODX within a img tag

I am using MODX 2.4.0. I am not sure what affect that would have on the above behaviour

Many thanks in advance.

This question has been answered by sottwell. See the first response.

[ed. note: glynszasz last edited this post 8 years, 7 months ago.]

Glyn Szasz
Sydney, Australia

Happy to help (when can) and happy to learn

If you are a Sydney based MODX developer would love to hear from you. Please contact me.

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sottwell Reply #2, 8 years, 7 months ago

According to the PHP docs,

filename

The path to save the file to. If not set or NULL, the raw image stream will be outputted directly.

http://php.net/manual/en/function.imagegif.php

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sottwell Reply #3, 8 years, 7 months ago

Actually this depends on how you are using this snippet. Is it the only thing on the page, or is it supposed to be an image displayed on a page of other content?

I'd write it to a file, then output a normal img link to the file.

Is the page itself the image which is generated with that snippet? Then change the resource's content type to be image/gif in its settings (you will need to create a new content type). [ed. note: sottwell last edited this post 8 years, 7 months ago.]

Studying MODX in the desert - http://sottwell.com
Tips and Tricks from the MODX Forums and Slack Channels - http://modxcookbook.com
Join the Slack Community - http://modx.org

141 Posts

Glyn Reply #4, 8 years, 7 months ago

Many thanks Susan. It seems by defining a path and outputting a file is the way to go.

Glyn Szasz
Sydney, Australia

Happy to help (when can) and happy to learn

If you are a Sydney based MODX developer would love to hear from you. Please contact me.

Answered imagegif displays stream of code instead of the gif