Whenever you use a client program to connect to an HTTPS URL, the
client will need to either include the server's certificate chain in
its keystore or not verify certificates in the first place. For cURL,
that's done like this:
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
For your PHP program, if it's using cURL I guess you'd do the same
thing. If it's using something else, you'll have to figure out how to
either install certificates or not verify them.
Dave Watts, CTO, Fig Leaf Software
1-202-527-9569
http://www.figleaf.com/
http://training.figleaf.com/
Fig Leaf Software is a Service-Disabled Veteran-Owned Small Business
(SDVOSB) on GSA Schedule, and provides the highest caliber vendor-
authorized instruction at our training centers, online, or onsite.