Trying to install WordPress locally on my machine using Apache, PHP and MySQL. Installed Apache and PHP 5.0.2. Got the latest MySql from Mysql, and installed their connectors. WordPress wouldn’t run. Complained that MySql wasn’t configured under PHP
Did some research and finally determined that the problem was with the version of the mysql libraries I was trying to use. Found this out by going to the command line and typing php -m. When php tried to start, it gave me errors.
Once I got the latest version from the php install zip, and put them in the correct place, PHP started and showed the mysql extension. WordPress now runs correctly.