imagegif — Outputs a GIF image.
int imagegif(image[, file]);
int image: Image
string file (optional):
TRUE on success; FALSE on error
imagegif() creates and outputs the GIF file from
memory. An optional filename writes the GIF file to disk;
otherwise, the image is sent directly to the client in
binary form. By default, the image is in GIF87a format,
but you can create a GIF89a format using imagecolortransparent() .
Since GIF support is unpredictable across versions of GD,
using PNG is a better option. The downside of using PNG
over GIF is that PNG is not a supported format in all
Existing since version 3.0.13
Example 424. Output a GIF
$im = imagecreate(200, 200);
$green = imagecolorallocate($im, 0, 255, 0);
imagefill($im, 0, 0, $green);
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing
(Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch).
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