关于Curl的代码问题

Question

$ch = curl_init("https://ssl.ptlogin2.qq.com/check?uin=799293407&appid=1003903&r=0.14233942252344134");
$cookie = "confirmuin=0; ptvfsession=b1235b1729e7808d5530df1dcfda2edd94aabec43bf450d8cf037510802aa1a7dbed494c66577479895c62efa3ef35ab; ptisp=cnc";
curl_setopt($ch, CURLOPT_COOKIE, $cookie);
curl_setopt($ch, CURLOPT_COOKIEFILE, temp_dir."cookie");
curl_setopt($ch, CURLOPT_COOKIEJAR, temp_dir."cookie");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = curl_exec($ch);//$ch是curl_init返回的句柄
var_dump($data); 
var_dump($data);执行的结果是false，怎么回事？

Answer 1

如果没有证书，那么就不能有证书验证
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);