wamp环境的cacert.pem文件

在wamp环境里，当你配置好了“extension=php_curl.dll”事项，还遇到“cURL error 60: SSL certificate: unable to get local issuer certificate.”时，就需要把该文件放到“E:\wamp\bin\php\php5.5.12\extras\ssl”目录下，并在php.ini里配置：curl.cainfo = "E:/wamp/bin/php/php5.5.12/extras/ssl/cacert.pem"