The preferred method is using the pear channel, but all methods are documented below.

At the time of this writing the latest version of PhD is in beta so the -beta tag is used below:

$ pear install doc.php.net/phd-beta

And for upgrading:

$ pear upgrade doc.php.net/phd-beta

If by chance you already installed PhD by other means then be sure to uninstall that version first.

Installing by using a specific tarball is possible too, but is not recommended.

$ pear install http://doc.php.net/phd/PhD-0.4.1.tgz

Getting the code:

$ svn co http://svn.php.net/repository/phd/trunk phd

Install and run from SVN:

$ cd phd
$ pear install -f package.xml

Alternately you can (although not recommended) run PhD directly from SVN, without needing to install it. The same holds true if using the tarball, because all the phd command really does is execute “php render.php” so:

$ cd phd
$ php render.php -d/path/to/phpdoc/.manual.xml

Now go on and read the PhD Documentation