PHP curl error: “Unknown SSL protocol error in connection to…”

Question

I having extreme difficulty with PHP curl. I am attempting to open a site: https://www.novaprostaffing.com/np/index.jsp through PHP curl, but it keeps yielding the following

Answer 1

Try setting the cURL option CURLOPT_SSLVERSION. I had the same problem a while ago, this did the trick for me :)

curl_setopt($ch, CURLOPT_SSLVERSION, 3); // 1, 2 or 3