cURL/PHP Request Executes 50% of the Time

Question

After searching all over, I can\'t understand why cURL requests issued to a remote SSL-enabled host are successful only 50% or so of the time in my case. Here\'s the situati

Answer 1

The remote host is maybe not a real unique host. Maybe it's some sort of load balancing solution with several servers taking the incoming requests. What make me think it could be that is the 'mac error' in the error message. This could mean the remote host mac address as changed while the SSL negociation was still running. And this could explain that sometimes you do not have any problem.

But maybe not :-) SSL problems are quite hard to find.

I do not understand your answer on prefork MPM vs Worker MPM, if you run PHP in cli mode your apache MPM is not used, you're not even using apache.

Answer 2

You may need this option:

CURLOPT_FORBID_REUSE

Pass a long. Set to 1 to make the next transfer explicitly close the connection when done. Normally, libcurl keeps all connections alive when done with one transfer in case a succeeding one follows that can re-use them. This option should be used with caution and only if you understand what it does. Set to 0 to have libcurl keep the connection open for possible later re-use (default behavior).

Answer 3

Had you tried? curl_setopt($handle, CURLOPT_SSLVERSION, 3);