function index()
{
// 直接把自己作为授权页面
include 'WxOAuth2.class.php';
$oauth2 = new WxOAuth2();
$v_token = $this->_get('token');
$code = $this->_get('code');
$state = $this->_get('state');
// 如果没有授权，就去授权
if (!$state) {
$appid = M('wxuser')->where(array('token' => $v_token))->getField('appid');
$oauth2->app_id = $appid;
$callback = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'] . '?' . $_SERVER['QUERY_STRING'];
$url = $oauth2->get_authorize_url($callback, 'snsapi_base', $v_token);
header('location:' . $url);
} else {
if ($code) {
// 如果用户同意授权
// 根据用户标识来确定app_id
$wxuser = M('wxuser')->where(array('token' => $v_token))->find();
// dump($wxuser);
$oauth2->app_id = $wxuser['appid'];
$oauth2->app_secret = $wxuser['appsecret'];
// 确认授权后会，根据返回的code获取token
$token_arr = $oauth2->get_access_token($wxuser['appid'], $wxuser['appsecret'], $code);
if (!$token_arr) {
die;
} else {
// header('location:' . implode(',', $token_arr));
}
// $user_info = $oauth2->get_user_info($token_arr['access_token'], $token_arr['openid']); //获取用户信息
$this->assign('openid', $token_arr['openid']);
if (!$this->wecha_id) {
$this->openid = $this->wecha_id = $token_arr['openid'];
$this->assign('reopenid', $this->wecha_id);
}
$this->assign('is_start', $this->is_start($this->packet_info['id']));
$this->display();
}
}
}
public function wxrurl()
{
include 'WxOAuth2.class.php';
$oauth2 = new WxOAuth2();
// 授权成功后跳转到此页面获取的信息
// dump($_GET);
// var_dump($this);
// echo $this->app_id . '<br>';
// 用户同意授权，返回用户标识
$state = $_GET['state'];
// 根据用户标识来确定app_id
$wxuser = M('wxuser')->where(array('token' => $state))->find();
// dump($wxuser);
$oauth2->app_id = $wxuser['appid'];
$oauth2->app_secret = $wxuser['appsecret'];
// 用户取消授权
if ($_GET['code'] == '') {
// echo '用户取消授权';
return false;
}
// 确认授权后会，根据返回的code获取token
$token_arr = $oauth2->get_access_token('', '', $_GET['code']);
// dump($token_arr);
// 保存授权信息
// 把当前公众号的标识写到数组
$token_arr['token'] = $_GET['state'];
// 时间戳
$token_arr['creatime'] = time();
// 把失效时间也存到数据库，7200-120，提前2分钟，为了防止出错吧
$token_arr['expire_time'] = $token_arr['creatime'] + 7200 - 120;
session('token', $token_arr);
// $wxoauth2 = M('wxoauth2')->where(array('token' => $_GET['token']))->order('desc')->find();
// 添加新的数据
$r = M('wxoauth2')->data($token_arr)->add();
// echo '<br>access_token => ' . $token_arr['access_token'];
// die;
$user_info = $oauth2->get_user_info($token_arr['access_token'], $token_arr['openid']);
//获取用户信息
// print_r($user_info);
$user_info['addtime'] = time();
// 把是数组的值转成json字符串，方便存数据库
foreach ($user_info as $key => $value) {
if (is_array($value)) {
$user_info[$key] = json_encode($value);
}
}
// 存用户信息到数据库
$user_info['v_token'] = $token_arr['token'];
$wx_openid = M('wxoauth2_openid');
$r = $wx_openid->data($user_info)->add();
if ($r < 0) {
// 写入失败
} else {
echo $user_info['headimgurl'];
}
}