用json编码的数组循环谷歌地图标记
Really need help here. I convert an array with json_encode to be able to loop through the lats/longs of the searchresult in a google map below. The map loads fine if i just use a normal marker, and if I echo the json encoded array I get:
["55.7171, 13.2354","55.6411, 13.2122"]
The Php code below (ignore most of it except the markers part, just giving you an idea of how it´s used).
<?php
if (isset($search_result)) {
$markers = array();
// Looping through the results and displaying appropriate data.
foreach ($search_result as $result) {
?>
<li><?= $result['first_name']; ?></li>
<li><?= $result['last_name']; ?></li>
<li><?= $result['address']; ?></li>
<li><img width="80" height="80" src="<?php echo file_exists($result['profile_picture'])? $result['profile_picture'] : $img_profile_def; ?>"></li>
<li><a href="profile.php?userid=<?= $result['id']; ?>">View This User</a></li><br><br>
<?php
$markers[] = $result['latitude'] . ', ' . $result['longitude'];
}
}
?>
The Javascript at the bottom of the script initializing the map etc. I get a map with this code but no markers.
<script type="text/javascript">
function initialize() {
var markers = <?php echo json_encode($markers); ?>;
var myLatLng = new google.maps.LatLng( <?php echo $area_coords; ?> );
var mapOptions = {
center:myLatLng,
zoom:15,
mapTypeId:google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map_canvas"),
mapOptions);
for (i = 0; i < markers.length; i++) {
var position = new google.maps.LatLng(markers[i]);
var marker = new google.maps.Marker({
map:map,
position:position
});
}
}
initialize();
这里真的需要帮助。 我用json_encode转换一个数组,以便能够在下面的谷歌地图中循环搜索结果的lats / longs。 如果我只使用普通标记,地图加载正常,如果我回显json编码数组,我得到: p>
[“55.7171,13.2354”,“55.6411,13.2122”]
code> pre>
下面的Php代码(忽略大部分代码除了标记部分,只是让你知道它是如何使用的)。 p>
&lt;?php
if(isset($ search_result)){
$ markers = array();
//循环结果并显示相应的数据。\ n foreach($ search_result as $ result){
?&gt;
&lt; li&gt;&lt;?= $ result ['first_name']; ?&gt;&lt; / li&gt;
&lt; li&gt;&lt;?= $ result ['last_name']; ?&gt;&lt; / li&gt;
&lt; li&gt;&lt;?= $ result ['address']; ?&gt;&lt; / li&gt;
&lt; li&gt;&lt; img width =“80”height =“80”src =“&lt;?php echo file_exists($ result ['profile_picture'])?$ result [' profile_picture']:$ img_profile_def;?&gt;“&gt;&lt; / li&gt;
&lt; li&gt;&lt; a href =”profile.php?userid =&lt;?= $ result ['id'];?&gt ;“&gt;查看此用户&lt; / a&gt;&lt; / li&gt;&lt; br&gt;&lt; br&gt;
&lt;?php
$ markers [] = $ result ['latitude']。 ','。 $ result ['longitude'];
}
}
?&gt;
code> pre>
脚本底部的Javascript初始化地图等我 获取具有此代码但没有标记的地图。 p>
&lt; script type =“text / javascript”&gt;
function initialize(){
var markers =&lt;? php echo json_encode($ markers); ?&gt ;;
var myLatLng = new google.maps.LatLng(&lt;?php echo $ area_coords;?&gt;);
var mapOptions = {
center:myLatLng,
zoom:15 ,
mapTypeId:google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById(“map_canvas”),
mapOptions);
for(i = 0; i&lt; markers.length; i ++){
var position = new google.maps.LatLng(markers [i]);
var marker = new google.maps.Marker({
\ n map:map,
position:position
});
}
}
initialize();
code> pre>
p >
div>
I think it's because you're passing a string as the LatLng parameter instead of two floats...perhaps you could change your JSON so that it's: [[lat,lng],[lat,lng]...] like so:
$markers[] = [$result['latitude'],$result['longitude']];
and then
var position = new google.maps.LatLng(markers[i][0],markers[i][1]);