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微信開發文檔有四部:
1 第一步:用戶同意授權,獲取code
2 第二步:通過code換取網頁授權access_token、openid
3 第三步:刷新access_token(如果需要)
4 第四步:拉取用戶信息(需scope爲 snsapi_userinfo)
snsapi_base: 到第二步就結束了,獲取到openid,其他操作在這個基礎上(比如記錄該用戶訪問時間次數信息)
snsapi_userinfo: 獲取openid和用戶資料(暱稱、頭像、國、省、城市、性別、權限)
snsapi_base:
public function getBaseInfo(){
//1、獲取code
$appid = 'wxe3ccbacbfdxxxxx';
$redirect_url = urlencode('http://wx.xx.com/index.php/Weixin/Index/getUserOpenId');
$url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=".$appid."&redirect_uri=".$redirect_url."&response_type=code&scope=snsapi_base&state=123#wechat_redirect";
header('location:'.$url);
}
//獲取用戶openid
public function getUserOpenId(){
//2、獲取網頁授權的access_token
$appid = 'wxe3ccbacbfdxxxxx';
$appsecret = '989b45dd6d2441ed01a5f5933aaaaaaa';
$code = $_GET['code']; //從上面函數getBaseInfo獲取得到
$url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$appid."&secret=".$appsecret."&code=".$code."&grant_type=authorization_code ";
//3、獲取openid
$res = $this->http_curl($url);
var_dump($res); //裏面便是有openid數據
}
userinfo:
//1、獲取code
public function getUserDetail(){
$appid = 'wxe3ccbacbfdxxxxxx';
$redirect_url = urlencode('http://wx.xx.com/index.php/Weixin/Index/getUserinfo');
$url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=".$appid."&redirect_uri=".$redirect_url."&response_type=code&scope=snsapi_userinfo&state=333#wechat_redirect";
header('location:'.$url);
}
public function getUserinfo(){
//2、獲取網頁授權的access_token
$appid = 'wxe3ccbacbfdxxxxxx';
$appsecret = '989b45dd6d2441ed01a5f59336aaaaaa';
$code = $_GET['code']; //從上面函數getBaseInfo獲取得到
$url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$appid."&secret=".$appsecret."&code=".$code."&grant_type=authorization_code ";
//3、獲取用戶信息
$res = $this->http_curl($url);
$openid = $res['openid'];
$access_token = $res['access_token'];
$url2 = "https://api.weixin.qq.com/sns/userinfo?access_token=".$access_token."&openid=".$openid."&lang=zh_CN";
$res2 = $this->http_curl($url2);
var_dump($res2);
}
注意:
1、獲取code – xx.com域名是要備案的,在開發-權限接口-網頁裏面配置
2、注意獲取code的函數(getBaseInfo)裏面鏈接是指向獲取用戶openid和信息函數(getUserOpenId)的獲取後的相應功能邏輯可以在這邊實現,但代碼訪問 獲取code 函數(getBaseInfo)就好