Overpass API and json output in PHP - php

Question

I am using Overpass Turbo to show information on a map.
Part of my code (I use PHP) is as follows:
//overpass query
$overpass = 'http://overpass-api.de/api/interpreter?data=[out:json];area(3600046663)->.searchArea;(node["amenity"="drinking_water"](area.searchArea););out;';
// collecting results in JSON format
$html = file_get_contents($overpass);
$jsonout = json_decode($html);
// this line just checks what the query would give as output
var_dump($jsonout);
Query results in JSON format (which is what var_dump shows) look like this:
version: 0.6
generator: "Overpass API"
osm3s:
timestamp_osm_base: "2017-11-03T06:25:02Z"
timestamp_areas_base: "2017-11-03T05:45:02Z"
copyright: "The data included in this document is from www.openstreetmap.org. The data is made available under ODbL."
elements:
0:
type: "node"
id: 254917402
lat: 46.0672187
lon: 11.1379545
tags:
amenity: "drinking_water"
1:
type: "node"
id: 257481472
lat: 46.0687113
lon: 11.1201097
tags:
amenity: "drinking_water"
and so on.
You can see it yourself, copying/pasting the query URL in your browser: http://overpass-api.de/api/interpreter?data=[out:json];area(3600046663)-%3E.searchArea;(node[%22amenity%22=%22drinking_water%22](area.searchArea););out;
As you can see, each element in the array above has latitude and longitude information. I need those to show markers on a map.
I am not able to isolate the lat and lon information from each element in the array. How can I do that?

Answer 1

Here you go:
<?php
// overpass query
$overpass = 'http://overpass-api.de/api/interpreter?data=[out:json];area(3600046663)->.searchArea;(node["amenity"="drinking_water"](area.searchArea););out;';
// collecting results in JSON format
$html = file_get_contents($overpass);
$result = json_decode($html, true); // "true" to get PHP array instead of an object
// elements key contains the array of all required elements
$data = $result['elements'];
foreach($data as $key => $row) {
// latitude
$lat = $row['lat'];
// longitude
$lng = $row['lon'];
}
?>