PEAR is the PHP Extension and Application Repository.
This guide explains the general structure, layout, and conventions used in the PEAR manual. The manual is divided into six main parts, they are:
This section contains a gentle introduction to what PEAR is and has to offer. Included is general information about installing and using PEAR, support options, and answers to frequently asked PEAR related questions.
General information about developing and releasing PEAR-Packages.
This section contains documentation about the core PEAR classes. These core components are the base to every PEAR class and understanding the basics will allow general use of the PEAR library. Topics include the PEAR base, PEAR administration, error handling through use of the PEAR_Error object, and system commands. These classes are generally shipped with every source PHP distribution.
There are many PEAR packages with the number growing every day. Most every package is documented and most are not installed by default. For information on installing PEAR classes on your system, be sure to read the Installation chapter.
Each documented class contains basic documentation about the packages publically available functions. There may also be additional information like an introduction, list of available constants, and example uses of the given package. Additional information may also exist within the package source files themselves.
The description of each function may contain some or all of the following parts:
Shows the structure and prototype of the function.
Gives a description about what the function does.
Describes each parameter for the function along with the parameter types and names. Both required and optional parameters are listed.
Describes the returned value, if the function doesn't fail.
Describes the returned PEAR_Error objects, if the function fails.
Additional notes and information about the function. An example note would be if the function can be called statically.
Links to other related functions or manual entries.
An example use of the function or class.
Contains information for writing your own PEAR Packages.