DIRECTORY constant is a built-in constant in PHP that represents the directory separator, typically used in file paths.
The value of the DIRECTORY constant may vary depending on the operating system. For example, on Windows, the value of the DIRECTORY constant is “\” while on Unix/Linux systems, the value is “/”.
By using the DIRECTORY constant, the code will have better portability across different operating systems, eliminating the need to write different path separators for each operating system.
The DIRECTORY constant is typically used in conjunction with other constants or variables to construct file paths or directory paths.
The DIRECTORY constant is a predefined constant in PHP that can be used directly without the need for additional definitions.
