install: apt-get install php-pear apt-get install gettext apt-get install php5-curl apt-get install php5-sqlite pear install Net_URL2-0.3.1 pear install HTTP_Request2-2.0.0RC1 pear install HTTP_OAuth-0.2.2 Warning for Linux (Ubuntu) users! Your system will *only* support the locales installed on your OS, in the *exact* format given by your OS. (See also the PHP setlocale man page.) To get a list of them, enter locale -a