This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.
Draws the specified lines and corners around the main window.
Use ncurses_wborder() for borders around subwindows!
Every parameter expects 0 to draw a line or 1 to skip it.
Top left corner
Top right corner
Bottom left corner
Bottom right corner