このコードを初めて使用して access_code を取得し、データベースに保存します。
<?php
require 'google-api-php-client/src/Google_Client.php';
require 'google-api-php-client/src/contrib/Google_DriveService.php';
require 'google-api-php-client/src/contrib/Google_Oauth2Service.php';
session_start();
$client = new Google_Client();
$client->setClientId(CLIENT_ID);
$client->setClientSecret(CLIENT_SECRET);
$client->setRedirectUri(REDIRECT_URI);
$client->setScopes(array(
'https://www.googleapis.com/auth/drive',
'https://www.googleapis.com/auth/userinfo.email',
'https://www.googleapis.com/auth/userinfo.profile'));
$client->setUseObjects(true);
$service = new Google_DriveService($client);
$client->authenticate();
$_SESSION['token'] = $client->getAccessToken();
const ACCESS_TOKEN=$_SESSION['token'];
//code here to save in database
?>
ACCESS_TOKEN がデータベースに保存されたら、コードを次のように変更します。
<?php
require 'google-api-php-client/src/Google_Client.php';
require 'google-api-php-client/src/contrib/Google_DriveService.php';
require 'google-api-php-client/src/contrib/Google_Oauth2Service.php';
session_start();
$client = new Google_Client();
$client->setClientId(CLIENT_ID);
$client->setClientSecret(CLIENT_SECRET);
$client->setRedirectUri(REDIRECT_URI);
$client->setScopes(array(
'https://www.googleapis.com/auth/drive',
'https://www.googleapis.com/auth/userinfo.email',
'https://www.googleapis.com/auth/userinfo.profile'));
$client->setUseObjects(true);
$service = new Google_DriveService($client);
//ACCESS_TOKEN is already saved in database, is being saved on first time login.
$_SESSION['access_token'] = ACCESS_TOKEN;
if (isset($_SESSION['access_token'])) {
$client->setAccessToken($_SESSION['access_token']);
}
if ($client->getAccessToken())
{
$userinfo = $service->about->get();
echo '<script>console.log('.json_encode($userinfo).');</script>';
$userinfoService = new Google_OAuth2Service($client);
$user = $userinfoService->userinfo->get();
echo '<script>console.log('.json_encode($user).');</script>';
}
?>