-1
https://github.com/paypal/PayPal-iOS-SDK/blob/master/docs/profile_sharing_server.md#profile-sharing-server-side-integration使用檢索來自PayPal的PHP用戶信息IOS SDK
curl 'https://api.paypal.com/v1/oauth2/token' \
-H "Content-Type: application/x-www-form-urlencoded" \
-H "Authorization: Basic QWZVa...==" \
-d 'grant_type=refresh_token&refresh_token=MFYQ...'
什麼是
Authorization: Basic QWZVa...== ??
and retur true;