(PHP 4 >= 4.0.5, PHP 5, PHP 7)
image2wbmp — Output image to browser or file
$image
[, string $filename
[, int $threshold
]] )
image2wbmp() outputs or save a WBMP
version of the given image.
imageAn image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
filenamePath to the saved file. If not given, the raw image stream will be output directly.
thresholdThreshold value, between 0 and 255 (inclusive).
Returns TRUE on success or FALSE on failure.
Example #1 image2wbmp() example
<?php
$file = 'php.png';
$image = imagecreatefrompng($file);
header('Content-Type: ' . image_type_to_mime_type(IMAGETYPE_WBMP));
image2wbmp($image); // output the stream directly
imagedestroy($image);
?>