无法设置CodeIgniter Cookie，但会话正常工作吗？

Question

I'm working with CodeIgniter to set up some user login functions to my site using Twitter and Facebook, this parts working and the session works fine.

When I try to set a cookie it doesn't work

//Setup a guid
$guid = uniqid();

//Setup a random cookie and point it to db user
$cookie = array(
  'name'   => 'TheCookieName',
  'value'  => $guid,
  'expire' => 100,
  'domain' => BASE_URL,
  'secure' => TRUE
);

    set_cookie($cookie);

  var_dump(get_cookie('TheCookieName')); // bool(false)

My autoload file is simple enough

$autoload['helper'] = array('paging_helper','url','cookie');

I'm obviously missing something trivial? Any clue?

Thanks

Answer 1

确保仅对https设置secure => TRUE

Answer 2

The problem is probably within your domain variable BASE_URL, which isn't a part of CI constants, probably doesn't contain what you expect or what a cookie initialization requires.

Try doing it like this:

//Setup a guid
$guid = uniqid();

//Setup a random cookie and point it to db user
$cookie = array(
  'name'   => 'TheCookieName',
  'value'  => $guid,
  'expire' => 86500, // have a high cookie time till you make sure you actually set the cookie
  'domain' => '.example.org', // the first . to make sure subdomains isn't a problem
  'path' => '/',
  'secure' => TRUE
);

    set_cookie($cookie);

Remember that cookies will never be available until a new request have been made.
Redirect to another page on the domain specified in the cookie setup and check for the cookie again.

Answer 3

You cannot set and access a cookie in the same instance. You should either redirect after setting the cookie or refresh. That's the reason why var_dumping get_cookie would always return false. You should also set the rest of the arguments. See setcookie