Google Gmail API Error with code - php

Question

Ok so im trying to play with the Gmail API but I keep runnning with this error. I looked at the google support forums and found nothing. The error code that i get is this below
Warning: fgets() expects parameter 1 to be resource, string given in
/home4/ab60883/public_html/email/quickstart.php on line 32
Fatal error: Uncaught exception 'Google_Auth_Exception' with message
'Invalid code' in
/home4/ab60883/public_html/email/google-api-php-client-master/src/Google/Auth/OAuth2.php:89 Stack trace: #0
/home4/ab60883/public_html/email/google-api-php-client-master/src/Google/Client.php(128):
Google_Auth_OAuth2->authenticate('', false) #1
/home4/ab60883/public_html/email/quickstart.php(35):
Google_Client->authenticate('') #2
/home4/ab60883/public_html/email/quickstart.php(68): getClient() #3
{main} thrown in
/home4/ab60883/public_html/email/google-api-php-client-master/src/Google/Auth/OAuth2.php
on line 89
is there something I'm doing wrong? I'm suppose to get a box to put my verification code but nothing. Any ideas?
require_once dirname(__FILE__).'/google-api-php-client-master/src/Google/autoload.php';
define('APPLICATION_NAME', 'Gmail API PHP Quickstart');
define('CREDENTIALS_PATH', '~/.credentials/gmail-php-quickstart.json');
define('CLIENT_SECRET_PATH', 'client_secret.json');
define('SCOPES', implode(' ', array(
Google_Service_Gmail::GMAIL_READONLY)
));
/**
* Returns an authorized API client.
* #return Google_Client the authorized client object
*/
function getClient() {
$client = new Google_Client();
$client->setApplicationName(APPLICATION_NAME);
$client->setScopes(SCOPES);
$client->setAuthConfigFile(CLIENT_SECRET_PATH);
$client->setAccessType('offline');
// Load previously authorized credentials from a file.
$credentialsPath = expandHomeDirectory(CREDENTIALS_PATH);
if (file_exists($credentialsPath)) {
$accessToken = file_get_contents($credentialsPath);
} else {
// Request authorization from the user.
$authUrl = $client->createAuthUrl();
printf("Open the following link in your browser:\n%s\n", $authUrl);
print 'Enter verification code: ';
$authCode = trim(fgets(STDIN));
// Exchange authorization code for an access token.
$accessToken = $client->authenticate($authCode);
// Store the credentials to disk.
if(!file_exists(dirname($credentialsPath))) {
mkdir(dirname($credentialsPath), 0700, true);
}
file_put_contents($credentialsPath, $accessToken);
printf("Credentials saved to %s\n", $credentialsPath);
}
$client->setAccessToken($accessToken);
// Refresh the token if it's expired.
if ($client->isAccessTokenExpired()) {
$client->refreshToken($client->getRefreshToken());
file_put_contents($credentialsPath, $client->getAccessToken());
}
return $client;
}
/**
* Expands the home directory alias '~' to the full path.
* #param string $path the path to expand.
* #return string the expanded path.
*/
function expandHomeDirectory($path) {
$homeDirectory = getenv('HOME');
if (empty($homeDirectory)) {
$homeDirectory = getenv("HOMEDRIVE") . getenv("HOMEPATH");
}
return str_replace('~', realpath($homeDirectory), $path);
}
// Get the API client and construct the service object.
$client = getClient();
$service = new Google_Service_Gmail($client);
// Print the labels in the user's account.
$user = 'me';
$results = $service->users_labels->listUsersLabels($user);
if (count($results->getLabels()) == 0) {
print "No labels found.\n";
} else {
print "Labels:\n";
foreach ($results->getLabels() as $label) {
printf("- %s\n", $label->getName());
}
}

Answer 1

Make sure you are running the script from the command line and not your browser.
STDIN is the CLI equivalent of an HTML input tag.

Answer 2

Run php quickstart.php in the terminal.
If for some reason it can't find the file, make sure you put it in the root of your project.