still --without-mysql after yum install php-mysql

I installed a new CentOS server that didn't include php-mysql or php-pear, so I installed both of those using yum. But php -i or phpinfo() still doesn't think mysql or pear are installed. How can I fix this without re-compiling by source? I tried that last week and broke everything, hence my installing a new server. Thanks, Tim -- Tim McGeary Senior Systems Specialist Lehigh University 610-758-4998 tim.mcgeary@lehigh.edu