Passing data from JS to PHP is not working - php

Question

I have an autocomplete googleapis that gets, latitude, longitude and adress correctly. When I try to pass these values to PHP, my ignorance of Java is making me do something wrong because php is not receiving any data.
JS
<h1>Autocomplete form</h1>
<input id="searchMapInput" class="mapControls" type="text" placeholder="- Type your location here -">
<ul id="geoData">
<li>Full Address: <span id="location-snap"></span></li>
<li>Latitude: <span id="lat-span"></span></li>
<li>Longitude: <span id="lon-span"></span></li>
</ul>
<script>
function initMap() {
var input = document.getElementById('searchMapInput');
var autocomplete = new google.maps.places.Autocomplete(input);
autocomplete.addListener('place_changed', function() {
var place = autocomplete.getPlace();
document.getElementById('location-snap').innerHTML = place.formatted_address;
document.getElementById('lat-span').innerHTML = place.geometry.location.lat();
document.getElementById('lon-span').innerHTML = place.geometry.location.lng();
function redirectToPosition(position) {
window.location='a.php?lat='+place.geometry.location.lat+'&long='+place.geometry.location.lng;
}
});
}
</script>
<script src="https://maps.googleapis.com/maps/api/js?key=[API_KEY_goes here]&libraries=places&callback=initMap" async defer>
</script>
And the serverside PHP is this (edited after comments)
<?php
$latitude = (isset($_GET['lat']))?$_GET['lat']:'';
$longitude = (isset($_GET['long']))?$_GET['long']:'';
echo "Latitude:".$latitude."</br>";
echo "Longitude:".$longitude;
?>
I get the url
---/a.php?lat=function%20(){return%20a}&long=function%20(){return%20b}
and the following echos:
Latitude: function (){return a}
Longitude: function (){return b}

Answer 1

You should check $_GET['lat'] and $_GET['long']
<?php
$latitude = (isset($_GET['lat']))?$_GET['lat']:'';
$longitude = (isset($_GET['long']))?$_GET['long']:'';
echo "Latitude:".$latitude."</br>";
echo "longitude:".$longitude;
?>