PHP - How to get images from Instagram for more than 1 tag

Guys I'm working on a PHP script which is getting all images for a specific tag in Instagram.

Here is my code:

<?PHP
 function callInstagram($url)
    {
    $ch = curl_init();
    curl_setopt_array($ch, array(
    CURLOPT_URL => $url,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_SSL_VERIFYPEER => false,
    CURLOPT_SSL_VERIFYHOST => 2
    ));

    $result = curl_exec($ch);
    curl_close($ch);
    return $result;
    }

    $tag = "sweden";
    $client_id = "1e0f576fbdb44e299924a93cace24507";
    $Next_URL = $_GET["nexturl"];
    if($Next_URL == ""){
    $url = 'http://ift.tt/SUv5zZ'.$tag.'/media/recent?client_id='.$client_id.'&count=24';
    } else {
    $url =  $Next_URL;
    }
    $inst_stream = callInstagram($url);
    $results = json_decode($inst_stream, true);
    $maxid = $results['pagination']['next_max_id'];
    $nexturl = $results['pagination']['next_url'];
    //Now parse through the $results array to display your results... 
    ?>
    <div class="holder" style="display:block;margin-left:70px;">
    <?PHP
    foreach($results['data'] as $item){
        $image_link = $item['images']['thumbnail']['url'];
        $big_image = $item['images']['standard_resolution']['url'];
    echo "Image: $image_link";
    }

This script is getting information about only one tag - sweden.

How can I make this code get all the information about more then one tag, for example let's say for another two tags - england and germany ?

Thanks in advance!