file_get_contents无法打开流：找不到合适的包装器

Question

我完全是新手：由于以下代码，我的脚本出现了问题：

    $user = json_decode(file_get_contents($graph_url));

*file_get_contents failed to open stream : no suitable wrapper found*

我试图用堆栈上的卷曲来解决

function my_curl_fun($url) {
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_URL, $url);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
 $data = curl_exec($ch);
 curl_close($ch);
 return $user;
}

            $graph_url = "http://graph.facebook.com/me?&fields=email,name&access_token=".$scriptolutionaccesstoken; //up1
$user = my_curl_fun($graph_url);

---

这是实际的代码，我需要使用curl的替代解决方案

$code = htmlentities(strip_tags(stripslashes($_REQUEST['code'])), ENT_COMPAT, "UTF-8");
    if($code != "")
    {
        $my_url = $config['baseurl']."/";
        $token_url = "https://graph.facebook.com/oauth/access_token?"
        . "client_id=" . $A . "&redirect_uri=" . urlencode($my_url)
        . "&client_secret=" . $B . "&code=" . $code;
        $response = file_get_contents($token_url);

        preg_match_all("/access_token\"\:\"(.+?)\"/", $response, $scriptolution7);
        $scriptolution6 = array_unique($scriptolution7);
        $scriptolutionaccesstoken = $scriptolution6[0][0];
        $scriptolutionaccesstoken = str_replace(":", "", $scriptolutionaccesstoken);
        $scriptolutionaccesstoken = str_replace("\"", "", $scriptolutionaccesstoken);
        $scriptolutionaccesstoken = str_replace("access_token", "", $scriptolutionaccesstoken);             

        $params = null;
        parse_str($response, $params);
        $graph_url = "https://graph.facebook.com/me?&fields=email,name&access_token=".$scriptolutionaccesstoken; //up1

        $user = json_decode(file_get_contents($graph_url));
        $fname = htmlentities(strip_tags($user->name), ENT_COMPAT, "UTF-8");
        $femail = htmlentities(strip_tags($user->email), ENT_COMPAT, "UTF-8");
        $fbpid = htmlentities(strip_tags($user->id), ENT_COMPAT, "UTF-8");
        $fbpicurl = "http://graph.facebook.com/".$fbpid."/picture";
        $fbpicurl2 = "http://graph.facebook.com/".$fbpid."/picture?type=large";
        $query="SELECT USERID FROM members WHERE email='".mysqli_real_escape_string($conn->_connectionID, $femail)."' limit 1";
        $executequery=$conn->execute($query);
        $FUID = intval($executequery->fields['USERID']);