If you only need to display the images base on a tag, then there is not to include the wrapper class "instagram.class.php". As the Media & Tag Endpoints in Instagram API do not require authentication. You can use the following curl based function to retrieve results based on your tag.
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 = 'YOUR_TAG_HERE';
$client_id = "YOUR_CLIENT_ID";
$url = 'https://api.instagram.com/v1/tags/'.$tag.'/media/recent?client_id='.$client_id;
$inst_stream = callInstagram($url);
$results = json_decode($inst_stream, true);
//Now parse through the $results array to display your results...
foreach($results['data'] as $item){
$image_link = $item['images']['low_resolution']['url'];
echo '
';
}