Reason:

The reason for this problem is that curl.cainfo is not configured, which is located in php.ini.

Solution:

Since the reasons for the errors are stated, it is much easier to solve them, as follows:

1. Download cacert

Download address: https://curl.haxx.se/ca/cacert.pem

2. Modify php.ini and restart

curl.cainfo="real_path/cacert.pem"

matters needing attention:

Needs to be turned on php_curl、php_openSSL extension;