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Introduction to PEAR PHP / PEAR
The PHP Extension and Application Repository (PEAR) brings this philosophy to PHP.Among other things, PEAR is a collection of reusable, open source code for use in PHP applications. The code is organized as a selection of files that act as wrappers giving convenient access to various PHP functions or extend PHP in some way. The files, collectively known as a "package," are easily obtained using the PEAR Package Manager.