PHP GD2 Gif Issue

[shanelarson55]

I have a script that saves a full size and a cropped version that is re-sized to 200x200. The full size saves just fine the cropped and re-sized version is all messed up.

 

Example:

 

 

Here is the cropped and re-size code:

 

$new_cropped_image_resource = imagecreatetruecolor(200, 200);
      switch($photo["ext"]){
    
	    case "gif":
	      $cropped_image = imagecreatefromgif($processing_image_temp_name_cropped);
	    break;

	    case "jpg":
	      $cropped_image = imagecreatefromjpeg($processing_image_temp_name_cropped);
	    break;

	    case "png":
	      $cropped_image = imagecreatefrompng($processing_image_temp_name_cropped);
	    break;

      }
      list($cropped_width, $cropped_height) = getimagesize($processing_image_temp_name_cropped);
      imagecopyresampled($new_cropped_image_resource,$cropped_image,0,0,0,0,200,200,$cropped_width,$cropped_height);
      switch($photo["ext"]){
    
	    case "gif":
	      imagegif($new_cropped_image_resource, $processing_image_temp_name_cropped);
	    break;

	    case "jpg":
	      imagejpeg($new_cropped_image_resource, $processing_image_temp_name_cropped, 100);
	    break;

	    case "png":
	      imagepng($new_cropped_image_resource, $processing_image_temp_name_cropped);
	    break;

      }

 

Any ideas? I'm stuck :/

 

Thanks for any help

-Shane

[Jessica]

Define "all messed up"

[shanelarson55]

The black and blue lines in the image shouldn't be there.

[xyph]

We can't see the image.

[shanelarson55]

Huh its showing up for me on my post huh, can you view it here:

 

http://s18.postimage.org/9duuzfdxz/issue.png

 

Can you view it?

[xyph]

Yes. Was this a transparent GIF?

 

You should check out the user comments for imagegif(). There's tons of potential odd behaviour.

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

[shanelarson55]

It was a normal gif outta paint.

[shanelarson55]

I figured out it is the imagecopyresampled function that messes it up.

[shanelarson55]

So I decided to test and see if another gif would work. It did!!!

 

The first gif I made in paint, just a normal image. it failed when cropped and looked as shown in that photo.

 

The other 3 tests were random images i made in paint again the same way just this time they were all different sizes and colors and worked just fine. Weird that one photo just refused to re-size w/o issue.

 

Any ideas why?