In what ways can the use of __DIR__ constant help in resolving file path issues when including PHP files?

When including PHP files in your code, you may encounter file path issues, especially when the included file is located in a different directory. Using the __DIR__ constant can help in resolving these path issues by providing the absolute path of the current file's directory, which can then be used to construct the correct path to the included file.

// Example of using __DIR__ constant to include a file
include __DIR__ . '/includes/header.php';