(PECL cairo >= 0.1.0)
The __construct purpose
public CairoRadialGradient::__construct ( float $x0, float $y0, float $r0, float $x1, float $y1, float $r1 )
Object oriented style:
Procedural style:
Creates a new radial gradient CairoPattern between the two circles defined by (x0, y0, r0) and (x1, y1, r1). Before using the gradient pattern, a number of color stops should be defined using CairoRadialGradient::addColorStopRgb(