Sometimes, you just can't get to a web browser to look up something from the PHP manual (or might not want to). Another option is the command line and in this new post to the SitePoint PHP blog, Troels Knak-Nielsen shows you a method for getting the entire manual entry right at your prompt neatly formatted.
One thing, I missed with either of the two [other solutions mentioned], was the ability to see the entire manual entry. It's quite often, that the manual actually holds useful information (Who'd known that!), so I find myself using www.php.net a lot. Or I did, until I decided to do something about it. Now, shell-scripting isn't what I spent most of my time on, so it's not with out a bit of pride, that I present to you phpm two-oh.
Most of the rest of the post is his bash script ready top cut and paste as well as some simple instructions on getting it working. (An emacs bonus is also included - a method for binding the script to a key to act on the current word.)