PHP (Hypertext Preprocessor) is a server-side scripting language used to create dynamic web pages and applications. It is a powerful scripting language that can be used to create interactive websites, online databases, and more.
An example of a simple PHP script is a form that allows users to enter their name, email address, and message. The PHP code would then take the input from the form and store it in a database. The code could also generate a confirmation message to the user, thanking them for submitting their information.