微信授权域名现在只允许填写两个
我们可以在其中一个安全域名下，弄一个中转地址
比方说授权域名填写a.abc.com
我们在a.abc.com
弄一个a.abc.com/jump.php
class Jump{
private $app_id = 'abc';
private $app_secret = 'cba';
public function geturl(){
return $this->get_authorize_url('a.abc.com/givecode.php'); //中转回调地址
}
public function get_authorize_url($redirect_uri = '', $state = ''){
$reurl = b.abc.com; //真正想要回调的地址
$redirect_uri = urlencode($redirect_uri);
return "https://open.weixin.qq.com/connect/oauth2/authorize?appid={$this->app_id}&redirect_uri={$redirect_uri}&response_type=code&scope=snsapi_base&state={$reurl}#wechat_redirect";
}
}
$obj = new Jump();
$url = $obj->geturl();
Header("Location: $url");
然后在givecode.php
$code = $_GET['code']; $state = urldecode($_GET['state']);
$token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=&secret=&code={$code}&grant_type=authorization_code";
$token_data = file_get_contents($token_url);
$token_data = json_decode($token_data);
if($token_data->openid){
$openid = $token_data->openid;
$url = $state;
setcookie("openid",$openid,time()+3600,'/','abc.com');
Header("Location: $url");
}
最后在b.abc.com拿到openid
用户详细信息也大致同一个思路
