wunderground json vlastní webovka

$a = json_decode(file_get_contents("https://api.weather.com/v2/pws/observations/current?stationId=ITNOVI2&format=json&units=m&apiKey=573ff1beb2264b4fbff1beb2269b4fea"));
var_dump($a);

<?php
function vytahniData($adresa) {
    $data = file_get_contents($adresa);
    $pole = json_decode($data, true); //dáta si naskladáme do asociatívneho poľa, nie do objektu
    return $pole;
}

function dvaDPoleDoTabulky($pole) {
    ?>
<table>
    <?php
        foreach ($pole as $klic => $vnorene) {
            ?>
    <tr>
        <td colspan="2"><?= $klic ?></td>
    </tr>
    <?php
            foreach ($vnorene as $klic => $hodnota) {
             ?>
    <tr>
        <td><?= $klic ?></td>
        <td><?= $hodnota ?></td>
    </tr>
    <?php       
            }
        }
    ?>
</table>
<?php
}

dvaDPoleDoTabulky(vytahniData("https://api.weather.com/v2/pws/observations/current?stationId=ITNOVI2&format=json&units=m&apiKey=573ff1beb2264b4fbff1beb2269b4fea"));
?>