Re: [PHP] Generate Thumbnail gif's

[Leif K-Brooks]

Vijaya_Manda wrote:

Is there any pre-written code available on the net to generate thumbnail
images for a picture.
I mean I send the path of the image and my PHP Script should be able to
generate a gif file of size 100x71 or something like that.
 

Images will look stretched if you do that, but here are two functions to 
resize an image with a new width or height proportional to its current 
size. Pass them GD image resources created with imagecreatefrompng() and 
friends.

function imageresizeheight($img, $newheight) {
   $oldheight = imagesy($img);
   $oldwidth  = imagesx($img);
   $newwidth  = $oldwidth * ($newheight / $oldheight);
   $newimg = imagecreatetruecolor($newwidth, $newheight);
   imagecopyresized($newimg, $img, 0, 0, 0, 0, $newwidth, $newheight, 
$oldwidth, $oldheight);
   return $newimg;
}
function imageresizewidth($img, $newwidth) {
   $oldheight = imagesy($img);
   $oldwidth  = imagesx($img);
   $newheight  = $oldheight * ($newwidth / $oldwidth);
   $newimg = imagecreatetruecolor($newwidth, $newheight);
   imagecopyresized($newimg, $img, 0, 0, 0, 0, $newwidth, $newheight, 
$oldwidth, $oldheight);
   return $newimg;
}

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