Performs a flood fill starting at the given coordinate (top left is 0, 0) with the given color in the image.
A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor.
x-coordinate of start point.
y-coordinate of start point.
The fill color. A color identifier created with imagecolorallocate.
Returns true on success or false on failure.
|8.0.0||image expects a GdImage instance now; previously, a resource was expected.|