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.
swfshape->drawcurve() draws a quadratic curve
(using the current line style,set by swfshape->setline())
from the current pen position to the relative position
using relative control point
That is, head towards the control point, then smoothly turn to the
With 6 parameters, it draws a cubic bezier to point
with control points (x+