Hey guys I have geolocation.html file and test.php file. I am using Ajax to pass var longitude and latitude from geolocation.html to my test.php for processing but it is showing me blank pages. I don't know why? Please help
geolocation.html
<html>
<head>
<script type= "text/javascript" src= "js/jquery.js" > </script>
<script>
//javascript is on the client
function getLocation() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(showPosition);
} else {
document.write("Geolocation is not supported by this browser.");
}
}
function showPosition(position) {
var latitude = position.coords.latitude;
var longitude = position.coords.longitude;
//Pass longitude and latitude to php how?
$.ajax({
type: 'POST',
url: 'test.php',
data: {lat: latitude,
lng:longitude}
});
}
</head>
Then my test.php
<?php
// $addlat = $_GET['addlat'];
// $addlong = $_GET['addlong'];
if (isset($_POST['lat']) && isset($_POST['lng']) ) {
$lat = $_POST['lat'];
$lng = $_POST['lng'];
echo $lat." ".$lng ;
}
?>
I modified your geolocation.html file. Hope this will help!
<html>
<head>
//ajax lib file
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
//javascript is on the client
function getLocation() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(showPosition);
} else {
document.write("Geolocation is not supported by this browser.");
}
}
function showPosition(position) {
var latitude = position.coords.latitude;
var longitude = position.coords.longitude;
//Pass longitude and latitude to php how?
$.post("test.php",
{
lat: latitude,
lng: longitude
},
function(data){
alert(data);
});
}
</script>
</head>
<button onclick="getLocation();">GET LOCATION</button>
Related
This my places.php file Here I am getting my coordinates from the database, I have checked this by echoing it's just fine, Also my connection to the database is just fine. Here I have made a self-executing function that repeats itself in an infinite loop and whenever the values will be changed or updated in the database my marker position will also updated. The code is very simple but looks like my ajax success variables aren't working.
include 'connection.php';
$myque = mysqli_query($con, 'Select * from places where id=1');
$gtloc = mysqli_fetch_array($myque);
$lati = $gtloc['lati'];
$long = $gtloc['longi'];
echo lati.",".$long;
//echo $long;
}
Here I am receiving the ajax success response and assigning it to a variable but it doesn't work.
Inserting Direct Coordinates shows the map but I need to make the marker responsive to database coordinates without refreshing the page. Inserting my variable to lat & long just and the map totally disappears
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script>
function test(){
//ajax call goes here
$.ajax({
url: "places.php",
type: "GET",
async: true,
data: {"id": 1},
success : function(value){
//alert("RESPONSE");
var data = value.split(",");
var latitude = (data[0]);
var longitude = (data[1]);
}
});
window.setTimeout(function(){
test();
}, 1500);
}
$(document).ready(function(){
test();
});
</script>
<script>
function initMap() {
var uluru = {lat: latitude , lng: longitude };
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 15,
center: uluru
});
var marker = new google.maps.Marker({
position: uluru,
map: map
});
}
</script>
</head>
<body>
<script></script>
<h2>My Places</h2>
<div id="map" style="height: 700px;width: 100%;"></div>
<!--map script -->
<!-- / Map Script-->
<script async defer src="https://maps.googleapis.com/maps/api/js?key=AIzaSyBYBZxCetgqbsCQU3mxZ622GwNdSglEVN4&callback=initMap"></script>
</body>
</html>
The issue is that those are string values. Try to make then lat/long float variables...
var lat = parseFloat(latitude);
var long = parseFloat(longitude);
In your example:
success : function(value){
//alert("RESPONSE");
var data = value.split(",");
var latitude = (data[0]);
var longitude = (data[1]);
}
Just add parseFloat like this:
var latitude = parseFloat(data[0]);
var longitude = parseFloat(data[1]);
I think it would solve it.
First of all, please apologize my English.
Hi! I need to print with PHP the current user´s address, i have this small script:
<?
function getaddress($lat,$lng)
{
$url = 'http://maps.googleapis.com/maps/api/geocode/json?latlng='.trim($lat).','.trim($lng).'&sensor=false';
$json = #file_get_contents($url);
$data=json_decode($json);
$status = $data->status;
if($status=="OK")
{
return $data->results[0]->formatted_address;
}
else
{
return false;
}
}
?>
<?php
$lat= 21.884766199999998; //latitude
$lng= -102.2996459; //longitude
$address= getaddress($lat,$lng);
if($address)
{
echo $address;
}
else
{
echo "Not found";
}
?>
of course it works, but I don't know how to change the $lat and $long variables to the current users location.
In few words; how I can pass the current user lat and long location to the PHP variables to let this script works?
<html>
<body>
<p id="demo">Click the button to get your coordinates:</p>
<button onclick="getLocation()">Try It</button>
<script>
var x=document.getElementById("demo");
function getLocation()
{
if (navigator.geolocation)
{
navigator.geolocation.getCurrentPosition(showPosition);
}
else{x.innerHTML="Geolocation is not supported by this browser.";}
}
function showPosition(position)
{
x.innerHTML="Latitude: " + position.coords.latitude +
"<br>Longitude: " + position.coords.longitude;
}
</script>
</body>
</html>
this is an javascript based search. you can try it in html browser and pass the lat long to the php scripts.
if it helps you its ok or you can tell , i have other ways too.
You need to get this using JavaScript or other google api. Which you can place lat & lang in an separate hidden field and then assign to your php variables from that hidden fields.
Here is an example script to get this using html 5 and java-script
<script>
var x = document.getElementById("demo");
function getLocation() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(showPosition);
} else {
x.innerHTML = "Geolocation is not supported by this browser.";
}
}
function showPosition(position) {
x.innerHTML = "Latitude: " + position.coords.latitude +
"<br>Longitude: " + position.coords.longitude;
}
</script>
This is another script using google Geo-location API
<!DOCTYPE html>
<html>
<head>
<title>Geolocation</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<div id="map"></div>
<script>
// Note: This example requires that you consent to location sharing when
// prompted by your browser. If you see the error "The Geolocation service
// failed.", it means you probably did not give permission for the browser to
// locate you.
var map, infoWindow;
function initMap() {
map = new google.maps.Map(document.getElementById('map'), {
center: {lat: -34.397, lng: 150.644},
zoom: 6
});
infoWindow = new google.maps.InfoWindow;
// Try HTML5 geolocation.
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var pos = {
lat: position.coords.latitude,
lng: position.coords.longitude
};
infoWindow.setPosition(pos);
infoWindow.setContent('Location found.');
infoWindow.open(map);
map.setCenter(pos);
}, function() {
handleLocationError(true, infoWindow, map.getCenter());
});
} else {
// Browser doesn't support Geolocation
handleLocationError(false, infoWindow, map.getCenter());
}
}
function handleLocationError(browserHasGeolocation, infoWindow, pos) {
infoWindow.setPosition(pos);
infoWindow.setContent(browserHasGeolocation ?
'Error: The Geolocation service failed.' :
'Error: Your browser doesn\'t support geolocation.');
infoWindow.open(map);
}
</script>
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap">
</script>
</body>
</html>
I have a script which I can't get working. I keep getting the error 'Geocoder failed' but I am not sure why. It is supposed to get the long/lat and then reverse geocode it to show the street address in an alert box. I have tried ensuring that the browser is letting it share the location. I have also tried accessing via HTTPS as I read that this was needed now but it still doesn't work.
If anyone can help me to get this working I would be most grateful!
Thanks in advance.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Current Location Address</title>
<style>
</style>
</head>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var geocoder;
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(successFunction, errorFunction);
}
//Get the latitude and the longitude;
function successFunction(position) {
var lat = position.coords.latitude;
var lng = position.coords.longitude;
codeLatLng(lat, lng)
}
function errorFunction(){
alert("Geocoder failed");
}
function initialize() {
geocoder = new google.maps.Geocoder();
}
function codeLatLng(lat, lng) {
var latlng = new google.maps.LatLng(lat, lng);
geocoder.geocode({'latLng': latlng}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
console.log(results)
if (results[1]) {
//formatted address
alert(results[0].formatted_address)
//find country name
for (var i=0; i<results[0].address_components.length; i++) {
for (var b=0;b<results[0].address_components[i].types.length;b++) {
//there are different types that might hold a city admin_area_lvl_1 usually does in come cases looking for sublocality type will be more appropriate
if (results[0].address_components[i].types[b] == "administrative_area_level_1") {
//this is the object you are looking for
city= results[0].address_components[i];
break;
}
}
}
//city data
alert(city.short_name + " " + city.long_name)
} else {
alert("No results found");
}
} else {
alert("Geocoder failed due to: " + status);
}
});
}
</script>
</head>
<body onload="initialize()"> <font face="verdana">
<!DOCTYPE html>
If available, your current address will have been displayed in a message window. Please press 'Back' when finished.
</body>
</html>
Your errorFunction is automatically passed an error parameter that you can take a look at:
function errorFunction(error){
alert("Geocoder failed: "+error.message);
}
See the MDN docs for more background and examples.
Im trying to create a page where you click on a button, you get your co-ordinates and then the data is saved on a .txt file on the server. This is my code
<!DOCTYPE html>
<html>
<head>
<head>
<body>
<input type="hidden" id="Latitude" name="Lat" value="">
<input type="hidden" id="Longitude" name="Lon" value="">
<button onclick="getLocation()">Get Location</button>
<p id="demo"></p>
<script>
var x = document.getElementById("demo");
var lat,lon;
function getLocation() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(showPosition);
lat=position.coords.latitude;
lon=position.coords.longitude;
document.getElementById("Latitude").value = lat;
document.getElementById("Longitude").value = lon;
} else {
x.innerHTML = "Geolocation is not supported by this browser.";
}
}
function showPosition(position) {
x.innerHTML = "Latitude: " + position.coords.latitude +
"<br>Longitude: " + position.coords.longitude;
}
</script>
<?php
$marker = fopen("markers.txt",a)
$locLat = $_GET['Lat'];
$locLon = $_GET['Lon'];
fwrite($marker,$locLat);
fwrite($marker,$locLon);
?>
</body>
</html>
I can get the user's location, but the PHP code doesn't work.
Thanks
You should correct you code by placing 'a' in double quote and semicolon at the end first line of php code
<?php
$marker = fopen("markers.txt","a");
$locLat = $_GET['Lat'];
$locLon = $_GET['Lon'];
fwrite($marker,$locLat);
fwrite($marker,$locLon);
?>
See this question for how can you include form tag and ajax submit using php here
I want to display on screen the var longitude en latitude but I think that the function is executing last and I'am stuck with the initial values.
The objective is to print on screen the exact values of the geolocation that the browser returns.
Thanks !!!
<!DOCTYPE html>
<head>
<script>
var longitude = "10";
var latitude = "20";
</script>
</head>
<html>
<body onload="getLocation()">
<script>
var longitude = "30";
function getLocation() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position){
latitude = position.coords.latitude;
longitude = position.coords.longitude;
alert('aaab:' +longitude);
});
}else {
alert("Geolocation API is not supported in your browser.");
}
}
</script>
<script>
alert("ccc");
document.write (longitude);
document.write (latitude);
</script>
</body>
</html>
i know that it's working within the function, but there is any way to use those variable outside? I just want to be able to store them in one global variable that cand be called wherever. Thanks
document.write is being executed before your code that updates it is being run. You need to do the document.write in the callback like so:
<!DOCTYPE html>
<head>
<script type='text/javascript'>
var longitude = "10";
var latitude = "20";
function getLocation() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position){
latitude = position.coords.latitude;
longitude = position.coords.longitude;
document.write(latitude+" / "+longitude);
});
}else{
alert("Geolocation API is not supported in your browser.");
}
}
</script>
</head>
<body onload="getLocation()">
</body>
</html>
Try this:
function getLocation() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(displayLocation);
}else {
alert("Geolocation API is not supported in your browser.");
}
}
function displayLocation(position) {
latitude = position.coords.latitude;
longitude = position.coords.longitude;
alert('aaab:' +longitude);
}
The Geolocation Callback probably hasn't been called at the time you write your longitude and latitude. Maybe you can use jQuery to write the correct values to the screen...
<script>
var longitude = "30";
function getLocation() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position){
latitude = position.coords.latitude;
longitude = position.coords.longitude;
//alert('aaab:' +longitude);
// Use jQuery to write your values to the html
$("#longitude").html(longitude);
$("#latitude").html(latitude);
});
}else {
alert("Geolocation API is not supported in your browser.");
}
}
</script>
<html>
...
<body onload="getLocation()">
<div id="longitude"></div>
<div id="latitude"></div>
</body>
</html>