How to return multidimensional array in codeigniter?

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public function get_data() {
    $data = array(
        array(
            'name' => 'John Doe',
            'age' => 30
        ),
        array(
            'name' => 'Jane Smith',
            'age' => 25
        ),
        array(
            'name' => 'Bob Johnson',
            'age' => 35
        )
    );

    return $data;
}