> And the vast majority are in the form *.php3 with internal references to
> other webpages which (of course) are also in the form *.php3.
That shouldn't be too hard.
> What I need is something that can go into that particular sub directory
and
> find every instance of php3 and make it php, both as a part of a file name
> and internally in the file.
I don't have something that can do this (though I'm sure osmething
exists) -- you could just have Apache use .php3 in addition to .php as a PHP
file extension (that's what I did on the machines with PHP3 code when we
went to PHP4 and it worked just fine).
Good luck!
-Mitch