The underlying CURLOPT_CAINFO option in libcurl only supports a single file name, and PHP/CURL merely passes on that string to libcurl. So no, you cannot pass more than one file name. You can however concatenate all those files into a single one, and point to that.
I'm running Apache locally for developing multiple sites and would like to run them simultaneously. The sites talk to each other over ssl, and since it is a local setup, I'm using self-signed certificates.
To get php(5.5.26) to accept these certificates, I added them to the
curl.cainfo property in
php.ini. I got it to work with one certificate, but when I try adding multiple (3), it doesn't work (I don't get anything back when making a request from one site to the other in php). I tried the following formats:
curl.cainfo=/path/to/certificate.crt curl.cainfo=/path/to/another/certificate.crt curl.cainfo=/path/to/last/certificate.crt
Same line, comma separated
Same line, colon separated
Any other ideas?