Definition: "Proprietary.php" is a PHP file used for custom development or modification in the context of web applications, often within a particular framework or framework library. It defines the functions and variables used by that application. This file typically includes configuration settings like database connection details, page templates, forms, scripts, and more. The word "proprietary" means exclusive or confidential to the owner of the code. This file is crucial for developers who want to write custom PHP applications with a distinct identity within their project or framework. In more technical terms, "proprietary.php" refers to a PHP script that is only accessible through internal processes or environments where the developer has specific rights and permissions.