sakura/_sakura/vendor/paypal/rest-api-sdk-php/sample/lipp/GetUserInfo.php

<?php

// ### Obtain Access Token From Refresh Token
require __DIR__ . '/../bootstrap.php';

use PayPal\Api\OpenIdUserinfo;
use PayPal\Api\OpenIdTokeninfo;

// To obtain User Info, you have to follow three steps in general.
// First, you need to obtain user's consent to retrieve the information you want.
// This is explained in the example "ObtainUserConsent.php".

// Once you get the user's consent, the end result would be long lived refresh token.
// This refresh token should be stored in a permanent storage for later use.

// Lastly, when you need to retrieve the user information, you need to generate the short lived access token
// to retreive the information. The short lived access token can be retrieved using the example shown in
// "GenerateAccessTokenFromRefreshToken.php", or as shown below

// You can retrieve the refresh token by executing ObtainUserConsent.php and store the refresh token
$refreshToken = 'W1JmxG-Cogm-4aSc5Vlen37XaQTj74aQcQiTtXax5UgY7M_AJ--kLX8xNVk8LtCpmueFfcYlRK6UgQLJ-XHsxpw6kZzPpKKccRQeC4z2ldTMfXdIWajZ6CHuebs';

try {

    $tokenInfo = new OpenIdTokeninfo();
    $tokenInfo = $tokenInfo->createFromRefreshToken(array('refresh_token' => $refreshToken), $apiContext);

    $params = array('access_token' => $tokenInfo->getAccessToken());
    $userInfo = OpenIdUserinfo::getUserinfo($params, $apiContext);

} catch (Exception $ex) {
    // NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY
 	ResultPrinter::printError("User Information", "User Info", null, $params, $ex);
    exit(1);
}

// NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY
 ResultPrinter::printResult("User Information", "User Info", $userInfo->getUserId(), $params, $userInfo);