php抓取https的内容的代码

直接用file_get_contents，会报错；

$url = (https://xxx.com");
file_get_contents($url);

错误：
warning: file_get_contents(https://xxx.com) [function.file-get-contents]: failed to open stream: no such file or directory in d:wampwwwgrabber_clientindex.php on line 3

用curl的方式是可以的：

$url = (https://xxx.com);
$ch = curl_init();
curl_setopt($ch, curlopt_url,$url);
curl_setopt($ch, curlopt_ssl_verifypeer, false);
curl_setopt($ch, curlopt_ssl_verifyhost, false);
$result = curl_exec($ch);
print_r($result);
?>

重点是以下两句：

curl_setopt($ch, curlopt_ssl_verifypeer, false);
curl_setopt($ch, curlopt_ssl_verifyhost, false);