imagegif
imagegif is a PHP function provided by the GD graphics library used to output or save a GIF image representation of a given image resource. It is commonly used in server-side image generation workflows to produce GIF images dynamically.
Signature and behavior: bool imagegif(resource $image, string $filename = null). If a filename is supplied, the function
Requirements and limitations: The GD extension must be compiled with GIF support. The $image resource is typically
Other notes: Transparency can be preserved using imagecolortransparent; imagegif returns true on success, false on failure;
Example: $im = imagecreatetruecolor(100, 100); imagefill($im, 0, 0, imagecolorallocate($im, 255, 0, 0)); imagegif($im, 'redbox.gif');