I am attempting to use the Facebook PHP SDK in conjunction with CodeIgniter to allow users to login to my site using Facebook Connect. No matter what I try, getUser() always returns 0, even after (apparently) successful authentication via Facebook.<\/p>\n
CodeIgniter version: 2.1.3<\/p>\n
Facebook PHP SDK version: 3.2.2<\/p>\n
I have created a config file, facebook.php, in the application\/config folder and I am loading the Facebook PHP SDK via CodeIgniter’s $this->load->library(…) method. The library is indeed getting loaded and I can successfully call many of the get…() methods including getAccessToken(), getAppId() and getAppSecret(), all of which return their expected values.<\/p>\n
Here is a stripped down version of my login controller: (note that I also provide an alternate method of logging in via email, hence the CodeIgniter session code sprinkled throughout)<\/p>\n
class Login extends CI_Controller {\n\n public function __construct()\n {\n \/\/Call parent constructor\n parent::__construct();\n\n \/\/Magic sauce - not sure if this is required but a lot of other people\n \/\/are recommending it to be included (happy to remove it if necessary)\n parse_str($_SERVER['QUERY_STRING'], $_REQUEST);\n\n \/\/Load facebook library\n $facebook_config = $this->load->config('facebook');\n $this->load->library('facebook', $facebook_config);\n }\n\n public function index()\n {\n \/\/Check if user is logged in\n $user_id = $this->session->userdata('user_id');\n $is_logged_in = $this->session->userdata('is_logged_in');\n\n if(($is_logged_in) && ($user_id != 0)) {\n \/\/Logged in - redirect to game\n redirect('game');\n } else {\n \/\/Not logged in\n \/\/Get facebook login url\n $facebook_data = array(\n 'redirect_uri' => 'hxxp:\/\/xxxxxxxx.com\/facebook_login\/',\n 'scope' => 'email'\n );\n $data['facebook_login_url'] = $this->facebook->getLoginUrl($facebook_data);\n \/\/Redirect to login form\n $this->load->view('login\/login_form', $data);\n }\n }\n\n public function facebook_login()\n {\n \/\/Always returns 0!! Even after authenticating via facebook!\n $facebook_user_id = $this->facebook->getUser();\n\n if ($facebook_user_id) {\n try {\n $user_profile = $this->facebook->api('\/me');\n print_r($user_profile);\n } catch (FacebookApiException $e) {\n echo $e->getMessage();\n }\n } else {\n echo \"Could not log in with Facebook\";\n }\n }\n}\n<\/code><\/pre>\nThe stripped down view (login_form.php) is as follows:<\/p>\n
\n \n Facebook Connect Test<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"I am attempting to use the Facebook PHP SDK in conjunction with CodeIgniter to allow users to login to my site using Facebook Connect. No matter what I try, getUser() always returns 0, even after (apparently) successful authentication via Facebook. CodeIgniter version: 2.1.3 Facebook PHP SDK version: 3.2.2 I have created a config file, facebook.php, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7924","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/7924","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=7924"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/7924\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=7924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=7924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=7924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}