{:wx_jssdk_config("false")}  //最主要的这一句 没有这一句在微信浏览器里是无法调用的定位功能的。下面有这个方法说明

<script>

    wx.ready(function(){

        wx.getLocation({

            type: 'wgs84', // 默认为wgs84的gps坐标，如果要返回直接给openLocation用的火星坐标，可传入'gcj02'

            success: function (res) {

                var latitude = res.latitude; // 纬度，浮点数，范围为90 ~ -90

                var longitude = res.longitude; // 经度，浮点数，范围为180 ~ -180。

                 var data = {

                        "lat":latitude,

                        "lng": longitude,

                    };

//                    console.log(data);

                    $.ajax({

                        url:'{:U("Index/lat_lng_add")}',

                        type: "POST",

                        data: data,

                        success: function (data) {}

                    });

            }

        })

    });

</script>

/**

 * 直接生成微信jssdk_config

 * @echo string $jssdk Jssdk_config

 * @author 5heAtMin9 <sheatming@foxmail.com>

 */

function wx_jssdk_config($debug='true'){

    $getSignPackage = wx_getSignPackage();

    $jssdk = '<script src="https://res.wx.qq.com/open/js/jweixin-1.2.0.js"></script>';

    $jssdk .= '<script>

    wx.config({

        debug: '.$debug.',

        appId: "'.$getSignPackage['appId'].'",

        timestamp: "'.$getSignPackage['timestamp'].'",

        nonceStr: "'.$getSignPackage['nonceStr'].'",

        signature: "'.$getSignPackage['signature'].'",

        jsApiList: ["checkJsApi","onMenuShareTimeline","onMenuShareAppMessage","onMenuShareQQ", "onMenuShareWeibo","onMenuShareQZone","hideMenuItems","showMenuItems","hideAllNonBaseMenuItem","showAllNonBaseMenuItem","translateVoice","startRecord","stopRecord","onVoiceRecordEnd","playVoice","onVoicePlayEnd","pauseVoice","stopVoice","uploadVoice","downloadVoice","chooseImage","previewImage","uploadImage","downloadImage","getNetworkType","openLocation","getLocation","hideOptionMenu","showOptionMenu","closeWindow","scanQRCode","chooseWXPay","openProductSpecificView","addCard","chooseCard","openCard"],

    });

</script>';

    echo $jssdk;

}

/**

 * Jssdk所需信息

 * @return array $signPackage Jssdk所需信息

 * @author 5heAtMin9 <sheatming@foxmail.com>

 */

function wx_getSignPackage()

{

    $jsapiTicket = wx_getJsApiTicket();

    // 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 = getRandom(32);

    // 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);

    $signPackage = array(

        "appId"     => C('WX_APPID'),

        "nonceStr"  => $nonceStr,

        "timestamp" => $timestamp,

        "url"       => $url,

        "signature" => $signature,

        "rawString" => $string

    );

    return $signPackage;

}

function wx_getJsApiTicket() {

    $jturl = 'https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token='.wx_get_access_token() -> access_token.'&type=jsapi';

    $ticket = json_decode(os_get($jturl));

    return $ticket->ticket;

}