在CodeIgniter中设置模型成员变量

Question

I'm using CodeIgniter and want to set a member variable for a model.

Here's how I'd expect to write the code:

class Person extends CI_Model {
    var $id = '';

    function __construct()
    {
        parent::__construct();
    }

    function set_id($id = '')
    {
        $this->id = $id;
    }
}

and then I'd expect to call the model and set the member variable like this:

$person1 = $this->load->model('Person');
$person1->set_id(5000);

but this gives:

Fatal error: Call to a member function set_id() on a non-object

I'm clearly missing some PHP or CodeIgniter language semantic here. Any suggestions?

Answer 1

change this

$person1 = $this->load->model('Person');
$person1->set_id(5000);

to

$this->load->model('Person');
$this->Person->set_id(5000);

From Documentation

Edit

Different instance of single model

$this->load->model('Person', 'Person1');
$this->Person1->set_id(5000);

$this->load->model('Person', 'Person2');
$this->Person2->set_id(5000);