What is Require?

The term "Require" is commonly associated with module loading or dependency management in programming languages, particularly JavaScript (Node.js) and PHP. In JavaScript (Node.js), 'require' is a function used to include modules that exist in separate files. It's a core part of the CommonJS module system. In PHP, 'require' is a language construct that includes and evaluates a specified file. If the file is not found, 'require' produces a fatal error and halts the script execution. Both are essential for code organization, reusability, and dependency management in their respective ecosystems.