imagepng
(PHP 4, PHP 5)
imagepng — Output a PNG image to either the browser or a file
Description
bool imagepng
( resource $image
[, string $filename
[, int $quality
[, int $filters
]]] )
Parameters
-
image
-
An image resource, returned by one of the image creation functions,
such as imagecreatetruecolor().
-
filename
-
The path to save the file to. If not set or NULL, the raw image stream
will be outputted directly.
Note:
NULL is invalid if the quality
and
filters
arguments are not used.
-
quality
-
Compression 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.
Return Values
Returns TRUE on success or FALSE on failure.