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FacebookApp for the Facebook SDK for PHP

In order to make requests to the Graph API, you need to create a Facebook app and obtain the app ID and the app secret. The Facebook\FacebookApp entity represents the Facebook app that is making the requests to the Graph API.

Warning: It is quite uncommon to work with the FacebookApp entity directly since the Facebook\Facebook service handles injecting it into the required classes for you.

Facebook\FacebookApp

To instantiate a new Facebook\FacebookApp entity, pass the app ID and app secret to the constructor.

$fbApp = new Facebook\FacebookApp('{app-id}', '{app-secret}');

Alternatively you can obtain the Facebook\FacebookApp entity from the Facebook\Facebook super service class.

$fb = new Facebook\Facebook([/* . . . */]);
$fbApp = $fb->getApp();

You'll rarely be using the FacebookApp entity directly unless you're doing some extreme customizations of the SDK for PHP. But this entity plays an important role in the internal workings of the SDK for PHP.

Instance Methods

getAccessToken()

public Facebook\Authentication\AccessToken getAccessToken()

Returns an app access token in the form of an AccessToken entity.

getId()

public string getId()

Returns the app id.

getSecret()

public string getSecret()

Returns the app secret.

Serialization

The Facebook\FacebookApp entity can be serialized and unserialized.

$fbApp = new Facebook\FacebookApp('foo-app-id', 'foo-app-secret');

$serializedFacebookApp = serialize($fbApp);
// C:29:"Facebook\\FacebookApp":54:{a:2:{i:0;s:10:"foo-app-id";i:1;s:14:"foo-app-secret";}}

$unserializedFacebookApp = unserialize($serializedFacebookApp);
echo $unserializedFacebookApp->getAccessToken();
// foo-app-id|foo-app-secret