PHP Email Error Unable to get local issuer certificate

When sending an error message, the message cannot be sent: SSL certificate:unable to get local issuer certificate

Under Windows, curl cannot find the CA certificate to verify the other person's certificate!

Method One: (Highly not recommended, unsafe)

curl_setopt ($ch, Curlopt_ssl_verifypeer, false);

Method Two:

It's easy to fix (PHP 5.3.7 or higher)-Download a list file with an up-to-date certificate authorities, and the add this set Ting to your php.ini

"Curl.cainfo=<path-to>cacert.pem"

From Http://stackoverflow.com/questions/17478283/paypal-access-ssl-certificate-unable-to-get-local-issuer-certificate

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PHP Email Error Unable to get local issuer certificate