(PHP 4 >= 4.0.6)
imagesetthickness -- Set the thickness for line drawing
Description
void
imagesetthickness ( resource image, int thickness)
imagesetthickness() sets the thickness of the lines
drawn when drawing rectangles, polygons, ellipses etc. etc. to
thickness pixels.
Note: This function was added in PHP 4.0.6 and requires GD 2.0.1 or later