Outputs a GD2 image to the given filename
.
image
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
filename
The path to the saved file. If not set or NULL, the raw image stream will be outputed directly.
chunk_size
type
Either IMG_GD2_RAW or IMG_GD2_COMPRESSED. Default is IMG_GD2_RAW.
Anmerkung: Diese Funktion setzt die GD Bibliothek in der Version 2.0.1 oder höher voraus.
Anmerkung: The GD2 format is commonly used to allow fast loading of parts of images. Note that the GD2 format is only usable in GD2-compatible applications.
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