add to cart in codeigniter example

Example 1: codeigniter.com cart

$data = array(
        array(
                'id'      => 'sku_123ABC',
                'qty'     => 1,
                'price'   => 39.95,
                'name'    => 'T-Shirt',
                'options' => array('Size' => 'L', 'Color' => 'Red')
        ),
        array(
                'id'      => 'sku_567ZYX',
                'qty'     => 1,
                'price'   => 9.95,
                'name'    => 'Coffee Mug'
        ),
        array(
                'id'      => 'sku_965QRS',
                'qty'     => 1,
                'price'   => 29.95,
                'name'    => 'Shot Glass'
        )
);

$this->cart->insert($data);

Example 2: codeigniter.com cart

$data = array(
        'rowid'  => 'b99ccdf16028f015540f341130b6d8ec',
        'qty'    => 1,
        'price'  => 49.95,
        'coupon' => NULL
);

$this->cart->update($data);