Description
void 
swf_openfile ( string filename, float width, float height, float framerate, float r, float g, float b)
     The swf_openfile() function opens a new file
     named filename with a width of
     width and a height of
     height a frame rate of
     framerate and background with a red color
     of r a green color of
     g and a blue color of
     b.
    
     The swf_openfile() must be the first function
     you call, otherwise your script will cause a segfault.  If you
     want to send your output to the screen make the filename:
     "php://stdout" (support for this is in 4.0.1 and up).