Read the php manual:
ImageCopy
(unknown)
ImageCopy -- Copy part of an image
Description
int ImageCopy (int dst_im, int src_im, int dst_x, int dst_y, int src_x, int src_y, int src_w, int src_h)
Copy a part of src_im onto dst_im starting at the x,y coordinates src_x, src_y with a width of src_w and a height of src_h. The portion defined will be copied
onto the x,y coordinates, dst_x and dst_y.
