I am trying to implement 2checkout payment gateway using PHP + cURL but while testing, I am getting CURL error which says:
cURL call failed:-Unknown SSL protocol error in connection to sandbox.2checkout.com:443
What could be the possible cause?
The 2Checkout sandbox is currently utilizing the TLSv1.2 protocol, any prior versions of TLS will cause the same error to display that you have received. This protocol has not yet been implemented into production.