Description
bool
imagegd ( resource image [, string filename] )
imagegd() outputs a GD image to
filename. The image
argument is the return from the imagecreatetruecolor()
function.
The filename parameter is optional, and if left
off, the raw image stream will be output directly.
Замечание:
The GD format is commonly used to allow fast loading of parts of images.
Note that the GD format is only usable in GD-compatible applications.
See also imagegd2().