What is the significance of the getcwd() function in PHP file inclusion?

The getcwd() function in PHP is significant for file inclusion as it returns the current working directory of the script. This can be useful when including files using relative paths to ensure that the correct file is being included. By using getcwd() in conjunction with file inclusion functions like require_once or include_once, you can ensure that the correct file is included regardless of the script's current directory.

$current_directory = getcwd();
require_once $current_directory . '/path/to/file.php';