php 函数配置

<?php
    // 步骤1.设置appid和appsecret
    $appid = ''; //此处填写绑定的微信公众号的appid
    $appsecret = ''; //此处填写绑定的微信公众号的密钥id

    // 步骤2.生成签名的随机串
    function nonceStr($length){
            $str = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJK1NGJBQRSTUVWXYZ';//随即串，62个字符
            $strlen = 62;
            while($length > $strlen){
            $str .= $str;
            $strlen += 62;
            }
            $str = str_shuffle($str);
            return substr($str,0,$length);
    }

    // 步骤3.获取access_token
    $result = http_get('https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='.$appid.'&secret='.$appsecret);
    $json = json_decode($result,true);
    $access_token = $json['access_token'];

    function http_get($url){
            $oCurl = curl_init();
            if(stripos($url,"https://")!==FALSE){
                    curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);
                    curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, FALSE);
                    curl_setopt($oCurl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1
            }
            curl_setopt($oCurl, CURLOPT_URL, $url);
            curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );
            $sContent = curl_exec($oCurl);
            $aStatus = curl_getinfo($oCurl);
            curl_close($oCurl);
            if(intval($aStatus["http_code"])==200){
                    return $sContent;
            }else{
                    return false;
            }
    }

    // 步骤4.获取ticket
    $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$access_token";
    $res = json_decode( http_get ( $url ) );
    $ticket = $res->ticket;


    // 步骤5.生成wx.config需要的参数
    $surl = $_GET['link'];
    $ws = getWxConfig( $ticket,$surl,time(),nonceStr(16) );

    function getWxConfig($jsapiTicket,$myurl,$timestamp,$nonceStr) {
			global $appid;
            $string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr&timestamp=$timestamp&url=$myurl";
            $signature = sha1 ( $string );
            $WxConfig["appid"] = $appid;
            $WxConfig["noncestr"] = $nonceStr;
            $WxConfig["timestamp"] = $timestamp;
            $WxConfig["url"] = $myurl;
            $WxConfig["signature"] = $signature;
            $WxConfig["rawstring"] = $string;
            return $WxConfig;
    }

	echo json_encode($ws);
?>

js 调用

<script src="https://res.wx.qq.com/open/js/jweixin-1.4.0.js"></script>
<script type="text/javascript">

$('.page-merch-list').on('touchstart','.showMap',function(){
	var lat = $(this).attr('data-lat');
	var lng = $(this).attr('data-lng');
	var merName = $(this).attr('data-merName');
	var addr = $(this).attr('data-addr');
	showMap(lat,lng,merName,addr);
	
});

function showMap(lat,lng,merName,addr){
	var url = encodeURIComponent(location.href.split("#")[0]);
	$.ajax({
		type: "get",
		url: "https://me.syb800.com/wechat.php?link=" + url,
		dataType: "json",
		contentType: "application/json; charset=utf-8",
		success: function(e) {
			var d = e.appid,
				i = e.timestamp,
				t = e.noncestr,
				n = e.signature;
			wx.config({
				debug: 0,
				appId: d,
				timestamp: i,
				nonceStr: t,
				signature: n,
				jsApiList: ["openLocation"]
			}), 
			wx.ready(function() {
				wx.openLocation({
					latitude: parseFloat(lat),//目的地latitude
					longitude: parseFloat(lng),//目的地longitude
					name: merName, //目的地名
					address: addr,//目的地地址
					scale: 15//地图缩放大小，可根据情况具体调整
				});

				
			})
		}
	});
	
	//window.history.back(); //自动返回上一页面，因为地图页面重新打开了一个窗口,如果地图返回是空白页面的话，需加上这代码

}

</script>