无法通过使用谷歌oauth php获得结果

i am using wamp server

Apache Version : 2.4.9 PHP Version : 5.5.12

i am using codeingter , it is working in love site a month ago i used this in localhost but now it is giving SSL certification error.

I recently implemented the google authentication (google/apiclient version 2.0) in my CodeIgniter project on my local xampp environment and got the same error. I solved this by downloading cacert.pem from here https://gist.github.com/VersatilityWerks/5719158/download

put it here C:\xampp\php\extras\ssl\cacert.pem

then edit php.ini file and put this line in this section

;;;;;;;;;;;;;;;;;;;;
; php.ini Options  ;
;;;;;;;;;;;;;;;;;;;;

curl.cainfo = "C:\xampp\php\extras\ssl\cacert.pem"

Remember to restart your apache server after this. Really hope that this method will work on your wamp server too, if not please comment.