The autoloader registrations composer would have written, as PHP for settings.php (where $class_loader and $app_root exist). files go last since they may use the other classes.
settings.php
$class_loader
$app_root
files
The autoloader registrations composer would have written, as PHP for
settings.php(where$class_loaderand$app_rootexist).filesgo last since they may use the other classes.