Ukázka přihlašování prostřednictvím Google API a získání informací uživatele.
V první řadě se musí vytvořit projekt v Google Developers Console. V horní části je roletová nabídka, kde lze vybrat existující projekt nebo lze vytvořit nový. Při novém projektu se musí zapnout Google+ API. Nastavit Credential na OAuth client ID a typ aplikace Web Application.
<?php
session_start();
//Include Google client library
include_once 'inc/src/Google_Client.php';
include_once 'inc/src/contrib/Google_Oauth2Service.php';
/*
* Configuration and setup Google API
*/
$clientId = 'Client ID';
$clientSecret = 'Secet ID';
$redirectURL = 'http://URLSITE/index.php';
//Call Google API
$gClient = new Google_Client();
$gClient->setApplicationName('Login to Google');
$gClient->setClientId($clientId);
$gClient->setClientSecret($clientSecret);
$gClient->setRedirectUri($redirectURL);
$google_oauthV2 = new Google_Oauth2Service($gClient);
if(isset($_GET['code'])){
$gClient->authenticate($_GET['code']);
$_SESSION['token'] = $gClient->getAccessToken();
header('Location: ' . filter_var($redirectURL, FILTER_SANITIZE_URL));
}
if($_GET['action']=='logout'){
$gClient->revokeToken();
}
if (isset($_SESSION['token'])) {
$gClient->setAccessToken($_SESSION['token']);
}
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Login with Facebook using PHP</title>
<style type="text/css">
h1{font-family:Arial, Helvetica, sans-serif;color:#999999;}
</style>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css">
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container" style="margin-top: 30px;">
<?php
if ($gClient->getAccessToken()) {
//Get user profile data from google
$gpUserProfile = $google_oauthV2->userinfo->get();
//Insert or update user data to the database
$gpUserData = array(
'oauth_provider'=> 'google',
'oauth_uid' => $gpUserProfile['id'],
'first_name' => $gpUserProfile['given_name'],
'last_name' => $gpUserProfile['family_name'],
'email' => $gpUserProfile['email'],
'gender' => $gpUserProfile['gender'],
'locale' => $gpUserProfile['locale'],
'picture' => $gpUserProfile['picture'],
'link' => $gpUserProfile['link']
);
} else {
$authUrl = $gClient->createAuthUrl();
$output = '<a href="'.filter_var($authUrl, FILTER_SANITIZE_URL).'"> Sign in with Google</a>';
}
if(!empty($gpUserData)){
?>
<h2>Google Profile Details | VOXCAFE</h2>
<table class="table table-hover">
<tr>
<th>Profile Image</th>
<th>Google ID</th>
<th>Fullname</th>
<th>Email</th>
<th>Gender</th>
<th>locale</th>
<th>Visit Facebook</th>
<th>Logout</th>
</tr>
<tr>
<td><img src="<?php echo $gpUserData['picture']; ?>" class="img img-circle" style="width:100px;"></td>
<td><?php echo $gpUserData['oauth_uid']; ?></td>
<td><?php echo $gpUserData['first_name'].' '.$gpUserData['last_name']; ?></td>
<td><?php echo $gpUserData['email']; ?></td>
<td><?php echo $gpUserData['gender']; ?></td>
<td><?php echo $gpUserData['locale']; ?></td>
<td><a href="<?php echo $gpUserData['link']; ?>">Visit Google Link</a></td>
<td><a href="index.php?action=logout">Logout</a></td>
</tr>
</table>
<?php
}else{
echo $output;
}
?>
</div>
</body>
</html>V souboru index.php stačí nastavit konstanty: clientID a clientSecret, které jsou dostupné v Google Developer Console při zakládání projektu.