This function is currently not documented; only the argument list is available.
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 color on image using the current fill color, starting at specified position, and using specified paint method.
x coordinate of the paint
y coordinate of the paint
one of the PAINT_ constants