The former Newcastle manager was one of the candidates considered for the vacant post, but announced in a statement he would not be taking up the role.
"I can confirm that I was one of the candidates that the club spoke to about the vacant manager's position at Cardiff City," the former England captain said. "During these talks I was most impressed with the vision, ambition and determination of the owner Dato Chan Tien Ghee and the board.
Lol... any club that robs the taxpayer and then gets bad news after bad news is great news to me.
Cardiff City FC is falling apart. It's players want to jump ship, nobody wants to be manager there, the fans are violent. It would be justice for the people if Cardiff City FC got relegated out of the Football League.