SSL certificate problem: unable to get local issuer certificate 的解决方法

今天在进行微信开发获取微信Access_Token时，使用到了php的curl库，

在敲完代码后获取token失败，经过各种排查错误，到了下面这一步

SSL certificate problem: unable to get local issuer certificate

后来通过下面解决，在php代码中输入下面一段

curl_setopt_array(

$ch,

array(

CURLOPT_URL => $url,

CURLOPT_REFERER => $url,

CURLOPT_AUTOREFERER => true,

CURLOPT_RETURNTRANSFER => true,

CURLOPT_SSL_VERIFYPEER => false,

CURLOPT_SSL_VERIFYHOST => false,

CURLOPT_CONNECTTIMEOUT => 1,

CURLOPT_TIMEOUT => 30,

CURLOPT_USERAGENT => 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.116 Safari/537.36',

)

);

时间有限先大概这样说明下。