codeigniter CSRF error: “The action you have requested is not allowed.”

Question

I enabled the csrf_protection option in codeigniter\'s config file, and used form_open() function to create my forms. But when I submit the form, this error occurs:

Answer 1

In config/config.php I have

$config['csrf_token_name'] = 'my.token.name';

But when I use var_dump for $_POST I see:

 ["my_token_name"]=> string(32) "f5d78f8c8bb1800d10af59df8c302515"

CI change my csrf_token_name (sic!)

Solution: I changed

$config['csrf_token_name'] = 'my.token.name';

to

$config['csrf_token_name'] = 'my_token_name';

Now it works.