root@sclrdev:/home/sclr/certs/FreshCerts# curl --ftp-ssl --verbose ftp://{abc}/ -u trup:trup --cacert /etc/ssl/certs/ca-certificates.crt * About to connect() to {abc
Download https://curl.haxx.se/ca/cacert.pem
After download, move this file to your wamp server.
For exp: D:\wamp\bin\php\
Then add the following line to the php.ini file at the bottom.
curl.cainfo="D:\wamp\bin\php\cacert.pem"