まずは現在インストールされている PEAR パッケージの一覧を表示。
# /usr/local/php/bin/pear list
Installed packages, channel pear.php.net:
=========================================
Package Version State
Archive_Tar 1.3.2 stable
Console_Getopt 1.2.1 stable
HTML_Template_IT 1.1 stable
Net_UserAgent_Detect 2.0.1 stable
PEAR 1.5.0 stable
Structures_Graph 1.0.2 stable
=========================================
Package Version State
Archive_Tar 1.3.2 stable
Console_Getopt 1.2.1 stable
HTML_Template_IT 1.1 stable
Net_UserAgent_Detect 2.0.1 stable
PEAR 1.5.0 stable
Structures_Graph 1.0.2 stable
PEAR HTTP_Request パッケージをインストール。
# /usr/local/php/bin/pear install HTTP_Request
