#native_company# #native_desc#

Revisited: Build Dynamic Pages With Search Engines in Mind

By Tim Perdue
on July 30, 2000

When I first wrote this column back in January 1999, I had no clue
that it was going to be so wildly popular, and I had even less of a clue
that PHPBuilder was going to take off and become as widely-used as it
is today.
Since this topic seems to be so important to a wide range of developers,
I’ll revisit it in more detail, sharing more bits of code with you.
Almost any developer knows that search engine placement is
critical to the success of a web site. What many people don’t
know is that a lot of search engines cannot index many database-driven
pages (basically any page with a ‘?’ or ‘&’ in the URL).
So when I set about building gotoCity.com, one
of my goals was to make the site database-driven, but still indexable. I didn’t want
any use of cookies or mile-long URLs, and I wanted useful, context-sensitive
meta tags to be generated from every page quickly and with no effort on my part.
More importantly, the method shown here actually works. My Gotocity.com
web site was getting up to 150,000 page views per day just from search engines
alone. That’s more than enough to crush a web server.
To pull this off, I started with a subtle Apache feature that can “force” a
script to be called for any certain directory tree. In my case, I wanted all
URLs that fall under “/local/” to call a script. This would be MUCH easier
than creating 200,000 localized web pages and a genuine directory
structure to match it.
So in Apache’s httpd.conf file, I added the following lines:

<Location /local>

ForceType application/x-httpd-php3


This forces every request that starts with “/local/” to call a script called
“local” (just “local”, not “local.php3”) in the
$DOCUMENT_ROOT (usually called “/htdocs/”)
of your server. “local” then uses PHP to parse the URL and act accordingly.
The code for my “local”” script is on the last page of this article. You can of
course replace “local” with any filename you want, as long as you change your
httpd.conf accordingly.
Now if you don’t have access to your httpd.conf file, you can also try the <files >
directive in a .htaccess file. Hundreds of people ran into this stumbling block in the past
16 months. It appears that this method only works on Linux, as people are reporting trouble
on FreeBSD and Windows. If you find an .htaccess solution on Windows, let me know.
Sample .htaccess file:,/div>

<Files local>

ForceType application/x-httpd-php3



Comment and Contribute

Your comment has been submitted and is pending approval.


Tim Perdue