(no version information, might be only in CVS)
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.
swfsprite->add() adds a swfshape(), a swfbutton(), a swftext(), a swfaction() or a swfsprite() object.
For displayable types (swfshape(), swfbutton(), swftext(), swfaction() or swfsprite()), this returns a handle to the object in a display list.