How to show message on view in codeigniter?

Open application/config/config.php and edit the line:

$config['encryption_key'] = '';

by adding some random values to the string

$config['encryption_key'] = 'q0231sz!!1@asd';

After that, when you've set the message with

$this->session->set_flashdata('key', 'value');

in your view file simply echo

echo $this->session->flashdata('key');

Note, that this will not echo your 'value' on this load, but will echo it after you refresh the page

$this->session->set_flashdata('mykey', 'testing');echo $this->session->flashdata('mykey'); // will echo '' (nothing)

php codeigniter message

The solution to your error is pointed out in your question:

In order to use the Session class you are required to set an encryption key in your config file.

php codeigniter message

You can set controller to,

$this->data['errormsg'] = "message";

then set view to

  echo isset($errormsg)?$errormsg:"" ;

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