(PHP 4, PHP 5)
imagepng — Output a PNG image to either the browser or a file
$image
[, string $filename
[, int $quality
[, int $filters
]]] )
Outputs or saves a PNG image from the given
image.
imageAn image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
filenameThe path to save the file to. If not set or NULL, the raw image stream will be outputted directly.
Note:
NULLis invalid if thequalityandfiltersarguments are not used.
qualityCompression level: from 0 (no compression) to 9.
filters
Allows reducing the PNG file size. It is a bitmask field which may be
set to any combination of the PNG_FILTER_XXX
constants. PNG_NO_FILTER or
PNG_ALL_FILTERS may also be used to respectively
disable or activate all filters.
Returns TRUE on success or FALSE on failure.
| Version | Description |
|---|---|
| 5.1.3 |
Added the filters parameter.
|
| 5.1.2 |
Added the quality parameter.
|
<?php
$im = imagecreatefrompng("test.png");
header('Content-Type: image/png');
imagepng($im);
imagedestroy($im);
?>