<"https://open.weixin.qq.com/connect/oauth2/authorize";

  }

   /**

   * 获取微信openid

   */

  public function getOpenid($turl)

  {

    if (!isset($_GET['code'])){

      //触发微信返回code码

       

       $url=$this->get_authorize_url($turl, $this->state);

       

      Header("Location: $url");

      exit();

    } else {

      //获取code码，以获取openid

      $code = $_GET['code'];

      $access_info = $this->get_access_token($code);

      return $access_info;

    }

     

  }

  /**

   * 获取授权token网页授权

   * 

   * @param string $code 通过get_authorize_url获取到的code

   */

  public function get_access_token($code = '')

  {

   $appid=$this->app_id;

   $appsecret=$this->app_secret;

    

    $token_url = "https://api.weixin.qq.com/sns/oauth2/access_token".$appid."&secret=".$appsecret."&code=".$code."&grant_type=authorization_code";

    //echo $token_url;

    $token_data = $this->http($token_url);

    // var_dump( $token_data);

    if($token_data[0] == 200)

    {

      $ar=json_decode($token_data[1], TRUE);

      return $ar;

    }

     

    return $token_data[1];

  }

   

   

  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, 30);

    curl_setopt($ci, 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);

  }

 

}

"htmlcode">

$openid=isset($_COOKIE['openid'])?$_COOKIE['openid']:'';

  

   if(empty($openid))

   {

     $wchat=new wchat();

     $t_url='http://'.$_SERVER['HTTP_HOST'].'/user.php?act=register';

      

     $info=$wchat->getOpenid($t_url);

      

     if($info){

        $openid=$info['openid'];

      setcookie('openid',$openid,time()+86400*30);  

        

     }

      

   }


以上就是我总结的获取openid的方法啦。
以上就是php获取微信openid的详细内容，更多请关注其它相关文章！