How can the $_SERVER['PATH'] variable be changed in PHP?

The $_SERVER['PATH'] variable cannot be directly changed in PHP as it is a read-only variable that contains the system path. If you need to modify the path for your script, you can use the set_include_path() function to change the include path for PHP to look for files.

<?php
$newPath = '/new/path/to/include';
set_include_path(get_include_path() . PATH_SEPARATOR . $newPath);
?>