To create a png with the transparent background:
newimage(width, height, "transparent", "png")
(PECL gmagick >= Unknown)
Gmagick::newimage — Creates a new image
$width
, int $height
, string $background
, string $format
= ?
) : GmagickCreates a new image with the specified background color.
width
Width of the new image.
height
Height of the new image.
background
The background color used for this image (as float).
format
Image format.
The Gmagick object.
错误时抛出 GmagickException。
To create a png with the transparent background:
newimage(width, height, "transparent", "png")