$ sudo port selfupdate ---> Updating MacPorts base sources using rsync MacPorts base version 2.0.3 installed, MacPorts base version 2.0.3 downloaded. ---> Updating the ports tree ---> MacPorts base is already the latest version The ports tree has been updated. To upgrade your installed ports, you should run port upgrade outdated
$ sudo port sync
参考)
Mac Air Lion にPHPの開発環境を構築する
http://d.hatena.ne.jp/ihiro81/20110809/1312872339