Posted by: 
Dominique De Cooman

I was trying to post to a webservice and was getting the 60 error code: Peer certificate cannot be authenticated with known CA certificates. .
The webservice I was trying to reach was over https.
The solution is very simple.
You need to set curl not to verify the ssl peer. You can do this by setting an option.

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

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