Definition: Term in programming, typically used for creating text fields on a webpage's form or editing existing content within them. Defines: textarea - an HTML input type field; PHP (PHP) – scripting language, commonly used for server-side code that manipulates data, often with functions like htmlspecialchars() to sanitize user inputs and validate forms. The word 'textarea.php' is used in the context of a web application's form or content management system. It serves as a text area where users can enter/edit content, such as fields or messages on a webpage.