Went to change fuel filter on my 08 ranger and the coupling on the out side of filter broke.its a 90.i patched the fuel line with a hose and clamps.is it ok to run like this.

 

If it doesn't leak, you're fine.
Inspect it routinely.
DO NOT ignore any smell of leaked gasoline.

NOTE:
Years ago I had similar problems with ancient, fragile fuel lines.
NAPA (a parts store in the US) had repair kits which featured couplings attached to 18" (45cm) lengths of tubing.
The kits came in 2 sizes, 5/16" and 3/8". NAPA might still make them as they are handy.

 

I believe these 4.0 SOHC engines run on 65-75 psi of fuel pressure. That's a lot of pressure for a clamp, but as long as there's no leaking fuel you should be fine and as already noted, do not ignore any smell of gasoline.