(PHP 4, PECL pdflib:1.0-2.1.3)
PDF_curveto — Draws a curve
The PDF_curveto() function draws a Bezier curve from the current point to the point (x3 , y3 ) using (x1 , y1 ) and (x2 , y2 ) as control points.
See also PDF_moveto(), PDF_lineto(), PDF_stroke().