How does PHP handle absolute paths in include statements?

When using absolute paths in include statements in PHP, it is important to ensure that the path is correctly specified to avoid any errors. One way to handle absolute paths is to use the `$_SERVER['DOCUMENT_ROOT']` variable to get the root directory of the server and then concatenate the rest of the path to it. This ensures that the include statement will correctly reference the file regardless of the current working directory.

include $_SERVER['DOCUMENT_ROOT'] . '/path/to/file.php';