PayPal Core SDK - V1.4.0

Prerequisites

• PHP 5.2 and above
• curl extension with support for OpenSSL
• PHPUnit 3.5 for running test suite (Optional)
• Composer (Optional - for running test cases)

Configuration

OpenID Connect Integration

1. Redirect your buyer to PPOpenIdSession::getAuthorizationUrl($redirectUri, array('openid', 'address')); to obtain authorization. The second argument is the list of access privileges that you want from the buyer.
2. Capture the authorization code that is available as a query parameter (code) in the redirect url
3. Exchange the authorization code for a access token, refresh token, id token combo

    $token = PPOpenIdTokeninfo::createFromAuthorizationCode(
		array(
			'code' => $authCode
		)
	);

4. The access token is valid for a predefined duration and can be used for seamless XO or for retrieving user information

   $user = PPOpenIdUserinfo::getUserinfo(
		array(
			'access_token' => $token->getAccessToken()
		)	
	);

5. If the access token has expired, you can obtain a new access token using the refresh token from the 3'rd step.

   $token->createFromRefreshToken(array('openid', 'address'));

6. Redirect your buyer to PPOpenIdSession::getLogoutUrl($redirectUri, $idToken); to log him out of paypal.