Eagles boss Dougie Freedman told BBC London 94.9: "Danny is an experienced player and we need that right now.
"This division throws a lot of games at you. We need strength in depth with Paddy McCarthy still missing."
The 33 year old former Wales international says he is looking to move on following a frustrating one-year spell at Loftus Road.
"A lot of stuff went on and I didn't really enjoy my time there to be honest.
"I'm happy to get a club now as I've gone through the summer and waited for things to happen.
"I want to try and enjoy my football again and just go out there and play and not worry about anything else."