01result.txt

+---------+----------+-----------+
| root_id | toone_id | tomany_id |
+---------+----------+-----------+
|       1 |        1 |         1 |
|       1 |        1 |         2 |
|       2 |        1 |         3 |
|       2 |        1 |         1 |
|       2 |        1 |         2 |
|       1 |        1 |         3 |
+---------+----------+-----------+

02current.txt

$results = array(
    0 => array(
        'id'    => 1,
        'toone' => array(
            'id'     => 1,
            'tomany' => array(
                0 => array('id' => 1),
                1 => array('id' => 2),
            ),
        ),
    ),
    1 => array(
        'id'    => 2,
        'toone' => array(
            'id'     => 1,
            'tomany' => array(
                0 => array('id' => 2),
                1 => array('id' => 3),
            ),
        ),
    ),
);

03new.txt

$results = array(
    0 => array(
        'id'    => 1,
        'toone' => array(
            'id'     => 1,
            'tomany' => array(
                0 => array('id' => 1),
                1 => array('id' => 2),
                2 => array('id' => 3),
            ),
        ),
    ),
    1 => array(
        'id'    => 2,
        'toone' => array(
            'id'     => 1,
            'tomany' => array(
                0 => array('id' => 1),
                1 => array('id' => 2),
                2 => array('id' => 3),
            ),
        ),
    ),
);