imagepng

Output a PNG image to either the browser or a file (PHP 3>= 3.0.13, PHP 4 )
int imagepng ( resource image [, string filename] )

The imagepng() outputs a GD image stream (image) 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.

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

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

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