Curl error: SSL connect error

Question

When i try to make payment using Paypal api it generate this error
'Curl error: SSL connect error'
- PHP version 5.4
but same code work in my local machine and i have PHP 5.6 in local machine
- is there version issue with this or somethings else ?

• my curl code is
  

  
  $curl = curl_init();
  curl_setopt($curl, CURLOPT_VERBOSE, 1);
  curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
  curl_setopt($curl, CURLOPT_TIMEOUT, 30);
  curl_setopt($curl, CURLOPT_URL, $api_endpoint);
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($curl, CURLOPT_POSTFIELDS, $nvp_string);
  $result = curl_exec($curl);
  if(curl_exec($curl) === false)
  {
     echo 'Curl error: ' . curl_error($curl);
  }
  else
  {
    echo 'Curl Execuation Success...';
     } 
  curl_close($curl);
  

Answer 1

You should get the actual error code with

echo curl_errno($curl); // It might display a '59'

Find '59' at https://curl.haxx.se/libcurl/c/libcurl-errors.html which is CURLE_SSL_CIPHER (59) and read about the error and then research how to fix it.

---

Possible fix

Based on https://stackoverflow.com/a/4073567 you should try:

curl_setopt($curl, CURLOPT_SSLVERSION, 3);

This is potentially dangerous though, since it forces SSL3.