Google oauth2 get userdetails not working and hanging php - php

Question

I copied this from the test folder included in the php sdk. It redirects to google for authentication as expected but when calling $oauth2->userinfo->get() it just hangs there. The cloud console said the error was 400 but I don't see what I could be doing wrong.
I updated the setting as per what is on my page. I've been searching for an answer for 2 hours. Please help :(
/* OAuth settings */
$clientID = 'blahblah.apps.googleusercontent.com';
$clientSecret = 'secret';
$redirect = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
$developerKey = 'key';
$client = new Google_Client();
$client->setApplicationName("Study-Corner");
$client->setClientId($clientID);
$client->setClientSecret($clientSecret);
$client->setRedirectUri($redirect);
$client->setDeveloperKey($developerKey);
$oauth2 = new Google_Oauth2Service($client);
if(isset($_GET['code'])) {
$client->authenticate($_GET['code']);
// get the access token
$_SESSION['token'] = $client->getAccessToken();
// redirect back
header('Location: '. filter_var($redirect, FILTER_SANITIZE_URL));
return;
}
if(isset($_SESSION['token'])) {
// set the access token
$client->setAccessToken($_SESSION['token']);
}
/* check if we have access */
if($client->getAccessToken()) {
$user = $oauth2->userinfo->get();
// These fields are currently filtered through the PHP sanitize filters.
// See http://www.php.net/manual/en/filter.filters.sanitize.php
$email = filter_var($user['email'], FILTER_SANITIZE_EMAIL);
$img = filter_var($user['picture'], FILTER_VALIDATE_URL);
print $email;
// The access token may have been updated lazily.
$_SESSION['token'] = $client->getAccessToken();
} else {
$authUrl = $client->createAuthUrl();
header("Location: ".$authUrl);
die;
}

Answer 1

Add $client->setScopes('profile); to your client details.