We recommend using Composer to install the library.

Modify your composer.json to add the following dependencies and run composer update.

{
    "require": {
        "auth0/auth0-php": "0.6.*",
        "adoy/oauth2": "dev-master"
    }
}

Create a php page (or action if you are using an MVC framework) that will handle the callback from the login attempt.

In there, you should create an instance of the SDK with the proper configuration and ask for the user information.

use Auth0SDK\Auth0;

$auth0 = new Auth0(array(
    'domain'        => 'YOUR_AUTH0_DOMAIN',
    'client_id'     => 'YOUR_AUTH0_CLIENT_ID',
    'client_secret' => 'YOUR_AUTH0_CLIENT_SECRET',
    'redirect_uri'  => 'http://<name>/callback.php'
));

$userInfo = $auth0->getUserInfo();

If the user was already logged in, getUserInfo() will retrieve that user information from the PHP Session. If not, it will try to exchange the code given to the callback to get an access token, id token and the user information from auth0.

This makes it possible to use the same code in the callback action and any other page, so to see if there is a logged in user, you can call

// ...
// code from above

if (!$userInfo) {
    // print login button
} else {
    // Say hello to $userInfo['name']
    // print logout button
}

After authenticating the user on Auth0, we will do a GET to a URL on your web site. For security purposes, you have to register this URL on the Application Settings section on Auth0 Admin app.

http://<name>/callback.php

### 4. Triggering login manually or integrating the Auth0 widget

You can trigger the login in different ways, like redirecting to a login link or using the Login Widget, by adding the following javascript into your page

<a href="javascript:widget.signin();">Login</a>

<script src="https://cdn.auth0.com/w2/auth0-widget-3.0.min.js"></script>
<script type="text/javascript">
    var widget = new Auth0Widget({
        domain:       'YOUR_AUTH0_DOMAIN',
        clientID:     'YOUR_AUTH0_CLIENT_ID',
        callbackURL:  'http://<name>/callback.php'
    });
</script>

By default, the SDK will store the user information in the PHP Session and it will discard the access token and the id token. If you like to persist them as well, you can pass 'persist_access_token' => true and 'persist_id_token' => true to the SDK configuration in step 2. You can also disable session all together by passing 'store' => false.

If you want to change PHP Session and use Laravel, Zend, Symfony or other abstraction to the session, you can create a class that implements get, set, delete and pass it to the SDK as following.

$laravelStore = new MyLaravelStore();
$auth0 = new Auth0(array(
    // ...
    'store' => $laravelStore,
    // ...
));

This SDK uses Composer to manage its dependencies.

php composer.phar install

1. Install dependencies
2. Start your web server on examples/{example-name} folder.
3. Create an OpenID Connect Application on Auth0.
4. Configure the callback url to point {your-base-url}\callback.php.
5. Open examples/{example-name}/config.php and replace all placeholder parameters.
6. On your browser, open the Auth0 example project. Make sure index.php is being loaded.

• Internal change, instead of using inheritance to change how we persist user data we now use composition
• API change, now getUserInfo returns the user info directly, so if you want the user name you use $userInfo['name'] instead of $userInfo['results']['name']

• Added fitbit example
• Fix base url bug

• Better code documentation
• Better user guide
• Create an interface for the store
• Drink coffee