What are the differences between registering with Facebook and using Facebook Connect for login purposes?

When registering with Facebook, a user creates a new account on a website using their Facebook credentials. When using Facebook Connect for login purposes, a user can log in to an existing account on a website using their Facebook credentials. The main difference is that registering with Facebook creates a new account, while using Facebook Connect logs a user into an existing account. 

// Register with Facebook
// This code snippet demonstrates how to register a new user using Facebook credentials

// Get user's Facebook data
$facebookData = $facebook->getUserData();

// Create a new user account using Facebook data
$user = new User();
$user->name = $facebookData['name'];
$user->email = $facebookData['email'];
$user->save();

// Login the newly registered user
Auth::login($user);

// Using Facebook Connect for login purposes
// This code snippet demonstrates how to log in a user using Facebook Connect

// Get user's Facebook data
$facebookData = $facebook->getUserData();

// Find the user by their Facebook email
$user = User::where('email', $facebookData['email'])->first();

// Login the user
Auth::login($user);

Keywords

Facebook Facebook Connect registration login PHP

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