imagepng

(PHP 3 >= 3.0.13, PHP 4, PHP 5)

imagepng -- Output a PNG image to either the browser or a file

Description

bool 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.


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