Symons, who has been coaching Fulham's Under-21 side for some time, will try to revive the Cottagers' season after the team picked up just one point in seven Championship games.
"I want to convince the owner to give me the job full-time," Symons said in today's press conference. "I've done the caretaker thing a few times and I'm ready to do it full-time now.
"I've got my own big ideas about what I want to do. I've got full confidence in the way I train, coach and manage and these players are going to love it.
"The club needs stability now and I am here to give that. No one understands the fabric of the football club better than me. I understand what the fans want, what the people working here want and what the players want now."
Fulham will take on Blackburn Rovers at Craven Cottage tomorrow.