For uploading files, you need to install a package of PEAR called ‘HTTP_Upload’ along with the installation of PEAR and Smarty.

First of all, you need to install PEAR in your web server. Then you need to install Smarty. After that, you need to install a package in PEAR. It’s called ‘Pager’.

For using database, you need to install a package of PEAR called ‘MDB2’ along with the installation of PEAR and Smarty.
MDB2 provides a common API for all support RDBMS.

PEAR is short for “PHP Extension and Application Repository” and is pronounced just like the fruit. It is a repository of PHP software code. The PEAR project was founded in 1999 by Stig S. Bakken to promote the re-use of code that performs common functions.