imagegd

(PHP 4 >= 4.1.0, PHP 5)

imagegd -- Output GD image to browser or file

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.

注: 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().