What technology is commonly used to create interactive web pages?

JavaScript is widely recognized as the technology that enables the creation of interactive web pages. It is a versatile programming language that runs in the browser, allowing developers to manipulate the Document Object Model (DOM) and respond to user actions such as clicks, keyboard inputs, and mouse movements. This capability creates a dynamic and engaging user experience, as elements on a web page can change in real-time without requiring a full page reload.

JavaScript integrates seamlessly with HTML and CSS, enhancing the functionality and aesthetics of web content. For instance, with JavaScript, developers can implement features like image sliders, pop-up modals, form validation, and animated graphics. These features contribute to the interactivity of a web page, making it more appealing and user-friendly.

While HTML5 and CSS3 are essential for structuring and styling web pages respectively, they do not provide the same level of interactivity that JavaScript does. HTML is primarily concerned with the content, and CSS focuses on presentation. PHP, on the other hand, is a server-side scripting language used for back-end development, meaning it handles data processing on the server rather than directly influencing the interaction of elements on a web page in the user's browser.