PHP is a server-side scripting language used in WordPress to power the core functionality of the platform. PHP stands for Hypertext Preprocessor, and it is a powerful and popular programming language for web development.
In WordPress, PHP is used to dynamically generate HTML pages and other content, allowing the platform to be highly customizable and flexible. PHP is used in WordPress to handle database queries, user authentication, theme and plugin development, and more.
WordPress currently requires PHP 7.4 or greater to run smoothly. WordPress plugins and themes are also built using PHP, allowing developers to add new features and functionality to WordPress through custom code.