Codeigniter：将post变量从一个函数传递到控制器中的另一个函数

Question

Am getting a variable called $msisdn from a view using post in one function (search_results). After doing the processing, I would like to use the same variable in another function(assign_role) currently,I am unable to do that since am getting this error

Severity: Notice Message: Undefined variable: msisdn

. Below is my search_result function where am getting the post data:

public function search_results(){

    $msisdn =  $this->input->post('search_data');//getting data from the view


    if ($msisdn == false){

        $this->load->view('add_publisher');

    } else{
        $this->assign_role($msisdn); //passing the variable to another function

        $this->load->model('search_model');


        $data['result'] = $this->search_model->search_user($msisdn);
        $data1['box'] = $this->search_model->search_select($msisdn);

        $result = array_merge($data, $data1);  

        $this->load->view('add_publisher',$result);

        echo json_encode($result);
    }

} 

I want to use $msisdn from above function in this function below:

public function assign_role($msisdn){

    //echo $msisdn['numm'];

    $publisher = $this->input->post('select');

    if ($publisher == false) {

        $this->load->view('add_publisher');

    } else {

        $data = array(
           'publisher' => true,
        );

        $this->load->model('insert_model');

        $data1 = $this->insert_model->search_group($msisdn, $data);             

            if ($data1 == true) {

                echo "Recorded updated succesfully";
                $this->load->view('add_publisher');

            } else {

                echo "Recorded not updated";
                $this->load->view('add_publisher');

            }

    }

}

Please help me to achieve this.

Answer 1

Passing variables from one function to another in the same controller can be achieved by using sessions. In Codeigniter, one can use flashdata like:

$this->session->set_flashdata('info', $MyVariable);

Remember, flashdata is only available for the next server request then it will be automatically cleared. Then it can be retrieved as:

$var = $this->session->flashdata('info');

If you want to keep the variable for one more server request, you can do this:

$this->session->keep_flashdata('info');

Hope this will help someone faced with the problem.