在做微信支付，在获取用户的openid的时候，一直获取不到code各位大神帮看看

[Ftm122710]

$appid="wx1279a423acc54c67";

$redirect_uri=urlencode("http://www.yihang88.cn/");

$url="https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx1279a423acc54c67&redirect_uri=$redirect_uri&response_type=code&scope=snsapi_base&state=123#wechat_redirect";
//header("Location:$url");

$ch=curl_init();
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_HEADER,0);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
$result = curl_exec($ch);
curl_close($ch);
Log::write($result);

$code = $_GET['code'];
var_dump($code);exit;