What is the primary use of PHP in web development?

The primary use of PHP in web development is to provide server-side functionality. PHP is a server-side scripting language, which means it runs on the server and can generate dynamic content that is sent to the client's web browser. This dynamic content can include data from databases, user inputs, and other server-side processes, allowing developers to create interactive and customized web applications.

PHP excels in handling tasks that require server-side logic, such as processing form data, managing database operations, and controlling the flow of an application based on user interactions or other conditions. It can communicate seamlessly with databases, making it a popular choice for content-heavy websites and applications that need to generate content dynamically based on user requests or interactions.

While other functionalities, such as enhancing database security or managing user sessions, are also part of what PHP can do, they are not its primary purpose. PHP is fundamentally designed to generate dynamic web content and manage application logic on the server side.