public function getOpenid($appid, $appsecret){
$SERVER_NAME = $_SERVER['SERVER_NAME'];
$REQUEST_URI = $_SERVER['REQUEST_URI'];
$redirect_uri = urlencode('http://' . $SERVER_NAME . $REQUEST_URI);
$code = $_GET['code'];
if (! $code) {
// 网页授权当scope=snsapi_userinfo时才会提示是否授权应用
$autourl = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=".$appid."&redirect_uri=".$redirect_uri."&response_type=code&scope=snsapi_userinfo&state=123#wechat_redirect";
header("location:$autourl");
} else {
// 获取openid
$url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$appid."&secret=".$appsecret."&code=$code&grant_type=authorization_code";
$row = $this->posturl($url);
return ($row['openid']);
}
}
public function posturl($url){
$ch = curl_