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PHP – PEAR
PEAR is an acronym for PHP Extension and Application Repository. It is a repository of PHP packages or extensions. You can freely incorporate any of these extensions from PEAR in your code. The PEAR project was established by Stig S. Bakken in 1999.
Most of the precompiled distributions of PHP such as XAMPP already have PEAR bundled with it. If not, you can install PEAR by downloading go-pear.phar file from https://pear.php.net/go-pear.phar and run
php go-pear.phar
In a Windows Command Prompt to start the installation.
Based on your responses to the setup steps, the PEAR Package Manager will be installed in the path, specified during installation.
You can then add that installation path to your PATH environment. Either do this manually (Start > Control Panel > System > Environment) or run (double-click) the newly generated PEAR_ENV.reg that's now found in the PHP source directory.
You can now access the PEAR Package Manager by running the command −
C:\xampp\php>pear
In a Windows Command Prompt.
You will get the list of PEAR commands as follows −
C:\xampp\php>pear Commands: build Build an Extension From C Source bundle Unpacks a Pecl Package channel-add Add a Channel channel-alias Specify an alias to a channel name channel-delete Remove a Channel From the List channel-discover Initialize a Channel from its server channel-info Retrieve Information on a Channel channel-login Connects and authenticates to remote channel server channel-logout Logs out from the remote channel server channel-update Update an Existing Channel clear-cache Clear Web Services Cache config-create Create a Default configuration file config-get Show One Setting config-help Show Information About Setting config-set Change Setting config-show Show All Settings convert Convert a package.xml 1.0 to package.xml 2.0 format cvsdiff Run a "cvs diff" for all files in a package cvstag Set CVS Release Tag download Download Package download-all Downloads each available package from the default channel info Display information about a package install Install Package list List Installed Packages In The Default Channel list-all List All Packages list-channels List Available Channels list-files List Files In Installed Package list-upgrades List Available Upgrades login Connects and authenticates to remote server [Deprecated in favor of channel-login] logout Logs out from the remote server [Deprecated in favor of channel-logout] makerpm Builds an RPM spec file from a PEAR package package Build Package package-dependencies Show package dependencies package-validate Validate Package Consistency pickle Build PECL Package remote-info Information About Remote Packages remote-list List Remote Packages run-scripts Run Post-Install Scripts bundled with a package run-tests Run Regression Tests search Search remote package database shell-test Shell Script Test sign Sign a package distribution file svntag Set SVN Release Tag uninstall Un-install Package update-channels Update the Channel List upgrade Upgrade Package upgrade-all Upgrade All Packages [Deprecated in favor of calling upgrade with no parameters]
Installing packages with PEAR is so easy. One way to find packages, is using the official PEAR site https://pear.php.net/packages.php and then run
pear install <package-name>
The next step is to use the PEAR package in your code. To do that, you should include the main PHP script of the package in your program with include, require, include_once or require_once statements.
<?php include "PEARPACKAGE.php"; . . . . . // rest of the code . . . . . ?>
A newer PHP package manager called Composer is an alternative available for managing packages for a PHP project. Composer also supports the installation of PEAR packages. Composer is preferred by many instead of PEAR for PHP package distribution.