CodeIgniter “flashdata” doesn't work

Question

I use CodeIgniter 2.1.0, i want after insert data in database get a message like \"Your information was successfully updated.\". For this work i have in CI_Controller follow

Answer 1

Except one page, I am able to display/pass values using session. I tried using the var_dump($this->session) and I get:

["flash:old:Array"]=> bool(false)
["flash:new:message"]=> string(10) "My Message"

I have tried echoing the flash data within the page without redirecting just after setting the data, but the result was same. I recommend to trim down the code, and try to set session in other pages. If the problem persists check your var_dump. This might not be the solution, but I think it can help.

UPDATE : trimming down spaces and newlines within the text worked. I was passing 2 long sentences with empty line breaks and spaces.

if (0) //Assume this condition is false
{   
    $this->load->view('error_page');
    // Generate validation error
}
else
{
    //Show success message
    $data = array(
                'message' => 'My message'
                           );
    $this->session->set_flashdata($data);
    $this->session->keep_flashdata($data);                      
    echo $this->session->flashdata('message');
    //echo var_dump($this->session);
    //redirect(base_url().'success_page');
}