Introduction & Installation of Pear And Soap
Before you install PEAR, we recommend you understand what PEAR is and why you should install it.
The base installation that comes with the PHP distribution contains all the stuff that is needed to run the PEAR installation tools etc. If you have a recent installation of PHP, you can relax: The PEAR base installation is already there - unless you have compiled your PHP with the ./configure flag --without-pear.
The packages that do not come with PHP can be installed with the PEAR package manager.