微信公众号获取用户地理位置

function getSignPackage($appId,$appSecret) {
    $jsapiTicket = getJsApiTicket($appId,$appSecret);
    // 注意 URL 一定要动态获取，不能 hardcode.
    $protocol = (!empty($_SERVER[‘HTTPS‘]) && $_SERVER[‘HTTPS‘] !== ‘off‘ || $_SERVER[‘SERVER_PORT‘] == 443) ? "https://" : "http://";
    $url = "{$protocol}{$_SERVER[HTTP_HOST]}{$_SERVER[REQUEST_URI]}";

    $timestamp = time();
    $nonceStr = createNonceStr();
    // 这里参数的顺序要按照 key 值 ASCII 码升序排序
    $string = "jsapi_ticket={$jsapiTicket}&noncestr={$nonceStr}&timestamp={$timestamp}&url={$url}";

    $signature = sha1($string);
    // var_dump($signature);die;
    $signPackage = array(
      "appId"     => $appId,
      "nonceStr"  => $nonceStr,
      "timestamp" => $timestamp,
      "url"       => $url,
      "signature" => $signature,
      "rawString" => $string
    );
    return $signPackage; 
  }

function createNonceStr($length = 16) {
    $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
    $str = "";
    for ($i = 0; $i < $length; $i++) {
      $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
    }
    return $str;
}

function getJsApiTicket($appId,$appSecret) {
    // jsapi_ticket 应该全局存储与更新，以下代码以写入到文件中做示例
    $data = json_decode(file_get_contents($_SERVER[‘DOCUMENT_ROOT‘]."\jsapi_ticket.json"));
    // var_dump($data->expire_time);die;
    if ($data->expire_time < time()) {
      $accessToken = getAccessToken($appId,$appSecret);
      // 如果是企业号用以下 URL 获取 ticket
      // $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$accessToken";
      $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token={$accessToken}";
      $res = json_decode(httpGet($url));
      $ticket = $res->ticket;
      if ($ticket) {
        $data->expire_time = time() + 7000;
        $data->jsapi_ticket = $ticket;
        $fp = fopen($_SERVER[‘DOCUMENT_ROOT‘]."\jsapi_ticket.json", "w");
        fwrite($fp, json_encode($data));
        fclose($fp);
      }
    } else {
      $ticket = $data->jsapi_ticket;
    }
    return $ticket;
  }

function getAccessToken($appId,$appSecret) {
    // access_token 应该全局存储与更新，以下代码以写入到文件中做示例
    $data = json_decode(file_get_contents($_SERVER[‘DOCUMENT_ROOT‘]."\access_token.json"));
    if ($data->expire_time < time()) {
      // 如果是企业号用以下URL获取access_token
      // $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";
      $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appId}&secret={$appSecret}";
      $res = json_decode(httpGet($url));
      $access_token = $res->access_token;
      if ($access_token) {
        $data->expire_time = time() + 7000;
        $data->access_token = $access_token;
        $fp = fopen($_SERVER[‘DOCUMENT_ROOT‘]."\jsapi_ticket.json", "w");
        fwrite($fp, json_encode($data));
        fclose($fp);
      }
    } else {
      $access_token = $data->access_token;
    }
    return $access_token;
}

function httpGet($url) {
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_TIMEOUT, 500);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
    curl_setopt($curl, CURLOPT_URL, $url);
    $res = curl_exec($curl);
    curl_close($curl);
    return $res;
}

<script src="http://res.wx.qq.com/open/js/jweixin-1.2.0.js"></script>
<script>

wx.config({
    debug: true,
    appId: ‘<?php echo $signPackage["appId"]; ?>‘,
    timestamp: <?php echo $signPackage["timestamp"]; ?>,
    nonceStr: ‘<?php echo $signPackage["nonceStr"]; ?>‘,
    signature: ‘<?php echo $signPackage["signature"]; ?>‘,
    jsApiList: [
        // 所有要调用的 API 都要加到这个列表中
          ‘getLocation‘,
      ]
});
 wx.ready(function () {
    wx.checkJsApi({
        jsApiList: [
            ‘getLocation‘
        ],
        
        success: function (res) {
            // alert(JSON.stringify(res));
            // alert(JSON.stringify(res.checkResult.getLocation));
            if (res.checkResult.getLocation == false) {
                alert(‘你的微信版本太低，不支持微信JS接口，请升级到最新的微信版本！‘);
                return;
            }
        }
    }); 
    wx.error(function(res){
        alert("接口调取失败")
    });
    wx.getLocation({
      success: function (res) {
        alert(JSON.stringify(res));
      },
      cancel: function (res) {
        alert(‘用户拒绝授权获取地理位置‘);
      }
    });
});
 
</script>