微信网页授权是服务号才有的高级功能，开发者可以通过授权后获取用户的基本信息；在此之前，想要获取消息信息只能在用户和公众号交互时根据openid获取用户信息；而微信网页授权可在不需要消息交互，也不需要关注的情况下获取用户的基本信息。
微信网页授权时通过OAuth2.0完成的，整个过程分为三步：
对微信网页授权过程做了简单封装：
- 微信授权相关接口
*/
class Wechat {
//高级功能-》开发者模式-》获取
private $app_id = 'xxx';
private $app_secret = 'xxxxxxx';
/**
- 获取微信授权链接
- @param string $redirect_uri 跳转地址
- @param mixed $state 参数
*/
public function get_authorize_url($redirect_uri = '',$state = '')
{
$redirect_uri = urlencode($redirect_uri);
return "https://open.weixin.qq.com/connect/oauth2/authorize?appid={$this->app_id}&redirect_uri={$redirect_uri}&response_type=code&scope=snsapi_userinfo&state={$state}#wechat_redirect";
}
/**
- 获取授权token
- @param string $code 通过get_authorize_url获取到的code
*/
public function get_access_token($app_id = '',$app_secret = '',$code = '')
{
$token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid={$this->app_id}&secret={$this->app_secret}&code={$code}&grant_type=authorization_code";
$token_data = $this->http($token_url);
if($token_data[0] == 200)
{
return json_decode($token_data[1],TRUE);
}
return FALSE;}
/**
-
@param string $access_token
-
@param string $open_id
*/
public function get_user_info($access_token = '',$open_id = '')
{
if($access_token && $open_id)
{
$info_url = "https://api.weixin.qq.com/sns/userinfo?access_token={$access_token}&openid={$open_id}&lang=zh_CN";
$info_data = $this->http($info_url);if($info_data[0] == 200)
{
return json_decode($info_data[1],TRUE);
}
}
return FALSE;}
public function http($url,$method,$postfields = null,$headers = array(),$debug = false)
{
$ci = curl_init();
/ Curl settings /
curl_setopt($ci,CURLOPT_HTTP_VERSION,CURL_HTTP_VERSION_1_1);
curl_setopt($ci,CURLOPT_CONNECTTIMEOUT,30);
curl_setopt($ci,CURLOPT_TIMEOUT,CURLOPT_RETURNTRANSFER,true);
switch ($method) {
case 'POST':
curl_setopt($ci,CURLOPT_POST,true);
if (!empty($postfields)) {
curl_setopt($ci,CURLOPT_POSTFIELDS,$postfields);
$this->postdata = $postfields;
}
break;
}
curl_setopt($ci,CURLOPT_URL,$url);
curl_setopt($ci,CURLOPT_HTTPHEADER,$headers);
curl_setopt($ci,CURLINFO_HEADER_OUT,true);
$response = curl_exec($ci);
$http_code = curl_getinfo($ci,CURLINFO_HTTP_CODE);
if ($debug) {
echo "=====post data======\r\n";
var_dump($postfields);
echo '=====info=====' . "\r\n";
print_r(curl_getinfo($ci));
echo '=====$response=====' . "\r\n";
print_r($response);
}
curl_close($ci);
return array($http_code,$response);}
}
以上就是本文的全部内容，希望对大家的学习有所帮助。
