**Install** pear and all its modules by:
yum install php-pear*
**Update** to latest version o... Install individual** pear modules first by trying yum for example:
yum install php-pear-PHPUnit
or by **pear install**:
pear install -a phpunit/PHPUnit
Note: When installing PHPUnit makes sure you install php-xml by yum first
nstall perl modules by CPAN first install CPAN
yum install perl-CPAN
Install Perl Modules by CPAN
... es the easy way**
make sure perl installed...
yum install perl
install the postgres modules...
yum install perl-DBD-Pg