imagepng

Description

int imagepng ( int im [, string filename])

The imagepng() outputs a GD image stream (im) in PNG format to standard output (usually the browser) or, if a filename is given by the filename it outputs the image to the file.

<?php
$im = imagecreatefrompng ("test.png");
imagepng ($im);
?>

See also imagegif(), imagewbmp(), imagejpeg(), imagetypes().