I was thinking about switching from Prefork MPM to Worker MPM, using default httpd installation from CentOS 5.6. So, followed some guides and found it was easy.

Uncommenting HTTPD variable at /etc/sysconfig/httpd seems to enable worker:


But then, then mysql_connect is not available anymore and all my php-mysql sites shows this error: Could not find mysql_connect()

php and mysql still the same packages that worked properly with prefork, both installed using yum with native CentOS packages.

I appreciate any ideas!