gdImageFlipHorizontal 4903 ext/gd/gd.c    			gdImageFlipHorizontal(im);
gdImageFlipHorizontal  805 ext/gd/libgd/gd.h void gdImageFlipHorizontal(gdImagePtr im);
gdImageFlipHorizontal   70 ext/gd/libgd/gd_transform.c 	gdImageFlipHorizontal(im);