我想要实现的目标基本上是标记登录我聊天的所有用户的位置,这是另一回事。所以我虽然使用geolocation api(http://code.google.com/apis/gears/api_geolocation.html)并将生成的位置存储在会话变量中。但它不起作用。这是代码 - “
<?php
$my_lat= $_GET['test']; // get data
$my_long= $_GET['fname'];
$my_name = "vivek";
$lat1=28.635308;
$long1=77.22496;
//$latitude = $_GET['latitude'];
//$longitude = $_GET['longitude'];// get data
echo $my_lat.''.$my_long;
?>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?key=''
&sensor=true"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
if(navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var lat = position.coords.latitude;
var longi= position.coords.longitude;
var url = 'bam.php';
//post to the server!
$.get(url, { test: lat,fname: longi },function(data){
alert('data was passed!');
});
}, function() {
//now is when the marking should be done.
handleNoGeolocation(true);
});
}
});
</script>
<script type="text/javascript">
function initialize() {
var myLatlng = new google.maps.LatLng(28.635308,77.22496);
var myOptions = {
zoom: 4,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
var thelat = '<?php echo $my_lat;?>';
var thelong = '<?php echo $my_long;?>';
var seslatlng = new google.maps.LatLng(thelat,thelong);
alert(seslatlng);
var marker = new google.maps.Marker({
position: seslatlng,
map: map,
animation: google.maps.Animation.DROP,
title:"Hello world!",
});
}
</script>`
问题是。变量seslatlng设置为(0,0)始终不是我想要的。我是PHP的新手,我只是粗略地了解服务器端脚本如何工作。有人可以解决这个问题吗?
答案 0 :(得分:2)
不使用 和 将值分配给javascript变量,而是使用:
var thelat = '<?=$my_lat?>';
var thelong = '<?=$my_long?>';
它会对你有用。我也尝试过将php变量赋值给javascript变量。
答案 1 :(得分:1)
我没有看到你设置seslatlng的任何地方。如果您希望将其作为JS变量,请添加:
var seslatlng = "(<?php echo $my_lat . ',' . $my_lng; ?>)"; // (30.230, 8.030)
答案 2 :(得分:1)
当你使用jquery的ajax get函数时,你想要做的是调用仅返回位置的php函数。这应该是怎么看的:
<?php
if ( $_GET['test'] ) {
$my_lat= $_GET['test']; // get data
$my_long= $_GET['fname'];
$my_name = "vivek";
$lat1=28.635308;
$long1=77.22496;
//$latitude = $_GET['latitude'];
//$longitude = $_GET['longitude'];// get data
echo $my_lat.''.$my_long;
} else {
?>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?key=''
&sensor=true"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
if(navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var lat = position.coords.latitude;
var longi= position.coords.longitude;
var url = 'bam.php';
//post to the server!
$.get(url, { test: lat,fname: longi },function(data){
alert('My location is: ' + data);
});
}, function() {
//now is when the marking should be done.
handleNoGeolocation(true);
});
}
});
</script>
<script type="text/javascript">
function initialize() {
var myLatlng = new google.maps.LatLng(28.635308,77.22496);
var myOptions = {
zoom: 4,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
var thelat = '<?php echo $my_lat;?>';
var thelong = '<?php echo $my_long;?>';
var seslatlng = new google.maps.LatLng(thelat,thelong);
alert(seslatlng);
var marker = new google.maps.Marker({
position: seslatlng,
map: map,
animation: google.maps.Animation.DROP,
title:"Hello world!"
});
}
</script>
<?php } ?>
答案 3 :(得分:0)
最好的方法是:
<script type="text/javascript">
var something=<?php echo json_encode($a); ?>;
</script>
json_encode的目的是转义引号,其他实体<?php echo $a; ?>
可能会破坏您的代码。