Question

I am searching if we can make PNG Image with php.

$image = imagecreatetruecolor(100,100);
$black = imagecolorallocate($image,0,0,0);
imagefill($image,0,0,$black);

This would create 100 X 100 black image.
But, I want to create 100 X 100 image with no background, i.e 100 X 100 transparent Image.

Thanks in advance

Answer 1

You can choose one color to become the transparent one like so:

$im = imagecreatetruecolor(100, 100);

$transparent = imagecolorallocate($im, 0, 0, 0);
imagecolortransparent($im, $transparent);

imagefill($im, 0, 0, $transparent);

As taken from the manual example: http://php.net/manual/en/function.imagecolortransparent.php