Include files from parent or other directory

include() and its relatives take filesystem paths, not web paths relative to the document root. To get the parent directory, use ../

include('../somefilein_parent.php');
include('../../somefile_2levels_up.php');

If you begin with a /, an absolute system file path will be used:

// Full absolute path...
include('/home/username/sites/project/include/config.php');

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