I'm debugging an issue that someone is having in accessing a payment gateway using a PHP plugin. The only way he has been able to avoid a 404 error after clicking the Checkout button is by setting CURLOPT\_SSL\_VERIFYPEER and CURLOPT\_SSL\_VERIFYHOST to 0. I know this is bad, but does anyone know why this might be? It seems to be distrusting of the SSL certificate of the payment website...could this just be an issue with his server not trusting certain SSL certificates? The response he is getting from the curl\_exec() function is just false when the checks are turned on.

EDIT: So I've seen multiple solutions that say to add something similar to this to my curlopt lines after getting the certificate file:

curl\_setopt($ch, CURLOPT\_CAINFO, getcwd() . "/CAcerts/certificate.cert");

But what if I'm dealing with a bunch of separate customers that are having this issue? That path won't work for everyone. What can I put instead that will apply to each person?

If I can't put a general line, then where would I tell the person to put their certificate file? This would have to be done by their web hosting service, right?