PEAR - PHP Extension and Application Repository

PEAR is a framework and distribution system for reusable PHP
components. More information about PEAR can be found in the
online manual and the FAQ.

If you are a first time user, you might be especially interested in the manual chapter "About PEAR".

Recent news about PEAR can be found here.

PEAR provides the above mentioned PHP components in the form of socalled "Packages". If you would like to download PEAR packages, you can browse the complete list here. Alternatively you can search for packages by some keywords using the search box above. Apart from simply downloading a package, PEAR also provides a command-line interface that can be used to automatically install packages. The manual describes this procedure in detail.
In case you need support for PEAR in general or a package in special, we have compiled a list of the available support resources.

from: http://pear.php.net