我正在尝试将一组标记添加到谷歌地图,每个标记都有一个信息窗口。我使用php和javascript混合来做这个,php从数据库中获取所有记录,然后javascript将所有标记添加到地图中,并使用从数据库中获取的坐标。
这是我到目前为止所做的:
<script type="text/javascript">
function initialize() {
var latlng = new google.maps.LatLng(<?=$lat?>, <?=$long?>);
var settings = {
zoom: 12,
center: latlng,
mapTypeControl: false,
navigationControl: true,
navigationControlOptions: {style: google.maps.NavigationControlStyle.SMALL},
mapTypeId: google.maps.MapTypeId.ROADMAP};
var map = new google.maps.Map(document.getElementById("map_canvas"), settings);
var postcodeLogo = new google.maps.MarkerImage('/images/postcode_marker.png',
new google.maps.Size(32,37),
new google.maps.Point(0,0),
new google.maps.Point(15,34)
);
var propertyLogo = new google.maps.MarkerImage('/images/property_marker.png',
new google.maps.Size(32,37),
new google.maps.Point(0,0),
new google.maps.Point(15,34)
);
var infowindow = new google.maps.InfoWindow();
<?
foreach ($results as $grid_refs)
{
?>
var propPos = new google.maps.LatLng(<?=$grid_refs['grid_ref']?>);
propMarker = new google.maps.Marker({
position: propPos,
map: map,
icon: propertyLogo,
title:"<?=$grid_refs['sd_name']?>",
zIndex: 3});
var contentString = '<div style="font-weight:bold;"><?=$grid_refs['sd_name']?></div><div><img src="www.imagelink.com/<?=$grid_refs['image_filename']?>"></div><div><a href="http://www.pagelink-<?=$grid_refs['property_id'];?>/" target="-blank">See full details</a></div>';
google.maps.event.addListener(propMarker, 'click', function() {
infowindow.setContent(contentString);
infowindow.open(map,this);
});
<?
}
?>
var positionPos = new google.maps.LatLng(<?=$lat?>, <?=$long?>);
var positionMarker = new google.maps.Marker({
position: positionPos,
map: map,
icon: postcodeLogo,
title:"<?=$_GET['searchpostcode']?>",
zIndex: 3});
}
</script>
positionMarker是用户输入他们想要搜索的邮政编码的地方。 propMarker标记地图上随后显示的所有位置。
在代码中显示所有信息,但是在地图上,每个信息窗口都会打开最后一条检索到的记录 - 我希望它加载与该标记相关的信息。
我看过这个问题:
Google Maps infoWindow only loading last record on markers
哪个会起作用,但是我似乎无法使用php foreach获得一个循环的js,我已经在php foreach内外尝试了它。
我认为我需要的是forearch循环,以便在每次创建标记时更改变量和contentString的名称,但我似乎可以使其工作?
非常感谢任何帮助!
答案 0 :(得分:3)
您将循环所有标记,但在最后一次迭代中,您设置为contentString的内容将成为所有点击事件的内容。
相反,将其委托给另一个函数(或使用闭包),例如
<?
foreach ($results as $grid_refs)
{
?>
var propPos = new google.maps.LatLng(<?=$grid_refs['grid_ref']?>);
propMarker = new google.maps.Marker({
position: propPos,
map: map,
icon: propertyLogo,
title:"<?=$grid_refs['sd_name']?>",
zIndex: 3});
var contentString = '<div style="font-weight:bold;"><?=$grid_refs['sd_name']?></div><div><img src="www.imagelink.com/<?=$grid_refs['image_filename']?>"></div><div><a href="http://www.pagelink-<?=$grid_refs['property_id'];?>/" target="-blank">See full details</a></div>';
// add an event listener for this marker
bindInfoWindow(propMarker, map, infowindow, contentString);
<?
}
?>
然后添加一个新功能:
function bindInfoWindow(marker, map, infowindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(html);
infowindow.open(map, marker);
});
}