The document discusses PHP and web development. PHP is a server-side scripting language that is commonly used for web development and building dynamic websites and web applications. It is integrated with popular databases like MySQL and used by developers to manage dynamic content, databases, and more. PHP developers write server-side logic to develop back-end components, connect applications to other services, and support front-end developers. The document promotes PHP training from TechVolt which provides hands-on projects and certification in PHP, an important and widely used language for web application development.