Multiple method calls from library

Hi there,

I would like to know how can I call two methods from library in a loop? For example I have library called "Test" and I load it in my controller

PHP Code:

$this->load->library('test'); 


I have array with values, for example:

PHP Code:

$values = array(10, 20, 30, 40, 50); 


Now I have to loop through that array and call two methods from my library:

PHP Code:

foreach($values as $value) {
    $this->test->set($value);
    $returned_value = $this->test->get();
    echo $returned_value.'<br>';
} 


My problem is that after the first call of these methods I can see returned value but after that I'm not getting any remaining values. How can I achieve that in CodeIgniter?