获取json数据并传递给PHP字符串（Here Maps api）

Question

I am having difficulty getting information from the Here Maps API (which deals with JSON). I am trying to convert the JSON to a string so it can be saved in a database.

Latitude and longitude is most important for my project.

$endereco = 'Rua Canapi 193, Guarulhos, Sao Paulo, Brasil';
$endereco = str_replace(" ", "+", $endereco);
$id = 'devportal-demo-20180625';
$cod = '9v2BkviRwi9Ot26kp2IysQ';

// https://geocoder.api.here.com/6.2/geocode.json?app_id=jz23R9Wi89IqwnnxZno0&app_code=g6DikMOdkOUyvGZN3kjW5A&searchtext=425+W+Randolph+Chicago
//$json = file_get_contents("http://autocomplete.geocoder.api.here.com/6.2/suggest.json?app_id=$id&app_code=$cod&query=$endereco&gen=9");//
//$json = file_get_contents("https://geocoder.api.here.com/6.2/geocode.json?searchtext=$endereco&app_id=$id&app_code=$cod&gen=9");
$json = file_get_contents("https://geocoder.api.here.com/6.2/geocode.json?app_id=$id&app_code=$cod&searchtext=$endereco");

    echo'<pre>';
    //print_r($json = json_decode($json, true));
    print_r($json = json_decode($json));
    echo'</pre>';

//echo $json->{'suggestions'}[0]->{'label'};
//var_dump( $json->{'Response'}{'MetaInfo'}[0]->{'Timestamp'});

As you can see I'm trying with the different json url that exists in the documentation page Here maps api and there are other ways but what I want is the one that has latitude and longitude

Answer 1

You're using json_decode() method as normal way. It'll return an OBJECT. To do what you want, you need to pass true as second parameter to method return the result as an ARRAY.

Also, don't do str_replace() at the URI parameter, use urlencode() method, that will handle all special characters.

Your revised code will be:

<?php 
$endereco = "Rua Canapi 193, Guarulhos, Sao Paulo, Brasil";
$id = "here_id";
$cod = "here_cod";

$json = json_decode ( file_get_contents ( "https://geocoder.api.here.com/6.2/geocode.json?app_id=" . urlencode ( $id) . "&app_code=" . urlencode ( $cod) . "&searchtext=" . urlencode ( $endereco)), true);

echo "Longitude: " . $json["Response"]["View"][0]["Result"][0]["Location"]["DisplayPosition"]["Longitude"] . "<br />";
echo "Latitude: " . $json["Response"]["View"][0]["Result"][0]["Location"]["DisplayPosition"]["Latitude"] . "<br />";

echo "<pre>";
print_r ( $json);
echo "</pre>";
?>