The Zend Debugger is a PHP extension which can be installed on a web server to enable the debugging of PHP scripts. Visit the Zend PDT website for more information.
LAMP is not software in itselft, but is acutally a solution stack of software used to run websites or servers. For more information on LAMP, visit wikipedia's LAMP Solution Stack article.
Since LAMP is not actually software in itself, to install and configure it, we will install and configure the individual software components that make up a LAMP Solution Stack.
phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL over the Web. Visit the phpMyAdmin website for more information.
mod_ssl is an Apache module that provides SSL v2/v3 and TLS v1 support for the Apache HTTP Server. See the mod_ssl documentation for more information.