是否可以将Codeigniter set_flashdata更改为数组？

I would like to change codeigniter set_flashdata() function to become an array it is it possible ?

the normal function like that: $this->session->set_flashdata('error', 'there is an error');

I need to be like that $this->session->set_flashdata(array('error'=>'there is an error'),'Description'=>'all fields required');

If it possible how to echo it on view? and if not what you can suggest ? thank you!

resolved:

$this->session->set_flashdata('error', array('error'=>'lock', 'msg'=>'lock'));

view:

$ero=$this->session->userdata['error']['error'];
$msg=$this->session->userdata['error']['msg'];