我想跟踪司机从出租车应用程序后端网页跟踪司机地图它给这个错误
此页面无法正确加载谷歌地图。有关技术细节，请参阅JavaScript控制台。
页面代码为:
<?php
require_once('../includes/config.php');
require_once('../includes/database.class.php');
$db= new database($pdo);
?>
<!DOCTYPE html>
<html lang="en">
<head>
<link href='http://fonts.googleapis.com/css?family=Dosis:400,700' rel='stylesheet' type='text/css'>
<title>map</title>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp"></script>
<script type="text/javascript">
var icon = new google.maps.MarkerImage("http://maps.google.com/mapfiles/ms/micons/blue.png",
new google.maps.Size(32, 32), new google.maps.Point(0, 0),
new google.maps.Point(16, 16));
var center = null;
var map = null;
var currentPopup;
var bounds = new google.maps.LatLngBounds();
function addMarker(lat, lng, info ) {
var pt = new google.maps.LatLng(lat, lng);
bounds.extend(pt);
var marker = new google.maps.Marker({
position: pt,
icon: icon,
map: map,
});
var popup = new google.maps.InfoWindow({
});
popup.setContent(info);
popup.open(map, marker);
google.maps.event.addListener(marker, "click", function() {
if (currentPopup != null) {
currentPopup.close();
currentPopup = null;
}
popup.open(map, marker);
currentPopup = popup;
});
google.maps.event.addListener(popup, "closeclick", function() {
map.panTo(center);
currentPopup = null;
});
}
function initMap() {
map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(0, 0),
zoom: 1,
mapTypeId: google.maps.MapTypeId.ROADMAP,
mapTypeControl: false,
mapTypeControlOptions: {
style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR
},
navigationControl: true,
navigationControlOptions: {
style: google.maps.NavigationControlStyle.SMALL
}
});
<?php
$db->mapOffers();
?>
center = bounds.getCenter();
map.fitBounds(bounds);
}
</script>
<style>
#map{
border:#CCC thin solid;
height: 480px;
margin: 0 0 10px 0;
padding: 0px
}
</style>
</head>
<body onload="initMap()" style="font-family: 'Roboto', sans-serif;" class="home">
<?php
// $db->mapOffers();
?>
<div id="map"></div>
</body>
</html>
你能帮我一下吗
你需要在google map api脚本中包含一个键
<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY" type="text/javascript"></script>
您可以注册密钥:https://developers.google.com/maps/documentation/javascript/get-api-key
截至2016年6月22日，谷歌地图V3不再支持无密钥访问(任何不包含API密钥的请求)。