Wechat.php
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<?php
namespace addons\third\library;
use fast\Http;
use think\Config;
use think\Session;
/**
* 微信
*/
class Wechat
{
const GET_AUTH_CODE_URL = "https://open.weixin.qq.com/connect/oauth2/authorize";
const GET_ACCESS_TOKEN_URL = "https://api.weixin.qq.com/sns/oauth2/access_token";
const GET_USERINFO_URL = "https://api.weixin.qq.com/sns/userinfo";
/**
* 配置信息
* @var array
*/
private $config = [];
public function __construct($options = [])
{
if ($config = Config::get('third.wechat')) {
$this->config = array_merge($this->config, $config);
}
$this->config = array_merge($this->config, is_array($options) ? $options : []);
}
/**
* 登陆
*/
public function login()
{
header("Location:" . $this->getAuthorizeUrl());
}
/**
* 获取authorize_url
*/
public function getAuthorizeUrl()
{
$state = md5(uniqid(rand(), true));
Session::set('state', $state);
$queryarr = array(
"appid" => $this->config['app_id'],
"redirect_uri" => $this->config['callback'],
"response_type" => "code",
"scope" => $this->config['scope'],
"state" => $state,
);
request()->isMobile() && $queryarr['display'] = 'mobile';
$url = self::GET_AUTH_CODE_URL . '?' . http_build_query($queryarr) . '#wechat_redirect';
return $url;
}
/**
* 获取用户信息
* @param array $params
* @return array
*/
public function getUserInfo($params = [])
{
$params = $params ? $params : request()->get();
if (isset($params['access_token']) || (isset($params['state']) && $params['state'] == Session::get('state') && isset($params['code']))) {
//获取access_token
$data = isset($params['code']) ? $this->getAccessToken($params['code']) : $params;
$access_token = isset($data['access_token']) ? $data['access_token'] : '';
$refresh_token = isset($data['refresh_token']) ? $data['refresh_token'] : '';
$expires_in = isset($data['expires_in']) ? $data['expires_in'] : 0;
if ($access_token) {
$openid = isset($data['openid']) ? $data['openid'] : '';
$unionid = isset($data['unionid']) ? $data['unionid'] : '';
if (stripos($this->config['scope'], 'snsapi_userinfo') !== false) {
//获取用户信息
$queryarr = [
"access_token" => $access_token,
"openid" => $openid,
"lang" => 'zh_CN'
];
$ret = Http::get(self::GET_USERINFO_URL, $queryarr);
$userinfo = (array)json_decode($ret, true);
if (!$userinfo || isset($userinfo['errcode'])) {
return [];
}
$userinfo = $userinfo ? $userinfo : [];
$userinfo['avatar'] = isset($userinfo['headimgurl']) ? $userinfo['headimgurl'] : '';
} else {
$userinfo = [];
}
$data = [
'access_token' => $access_token,
'refresh_token' => $refresh_token,
'expires_in' => $expires_in,
'openid' => $openid,
'unionid' => $unionid,
'userinfo' => $userinfo
];
return $data;
}
}
return [];
}
/**
* 获取access_token
* @param string code
* @return array
*/
public function getAccessToken($code = '')
{
if (!$code) {
return [];
}
$queryarr = array(
"appid" => $this->config['app_id'],
"secret" => $this->config['app_secret'],
"code" => $code,
"grant_type" => "authorization_code",
);
$response = Http::get(self::GET_ACCESS_TOKEN_URL, $queryarr);
$ret = (array)json_decode($response, true);
return $ret ? $ret : [];
}
}