(PHP 5)
imagexbm — Output XBM image to browser or file
Outputs or save an XBM version of the given image .
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
The path to save the file to. If not set or NULL, the raw image stream will be outputted directly.
You can set the foreground color with this parameter by setting an identifier obtained from imagecolorallocate(). The default foreground color is black.
如果成功則回傳 TRUE,失敗則回傳 FALSE。
Note: 本函式僅在 PHP 與其包含的 GD 函式庫一起編譯時可用。