How does using "__DIR__" as a global variable compare to using $_SESSION["Pfad"] for including files in PHP scripts?

Using "__DIR__" as a global variable is a more secure and efficient way to include files in PHP scripts compared to using $_SESSION["Pfad"]. "__DIR__" always points to the directory of the current file, ensuring that the included files are always relative to the current file's location. On the other hand, storing file paths in $_SESSION variables can introduce security vulnerabilities and make the code harder to maintain.

// Using __DIR__ to include files
include __DIR__ . '/path/to/file.php';