Get a list of instagrams refereed to a tag

instagrams.php

<?php

  function fetchData($url){
  //edit here
  $search = "mercadoconvite";
  $access_token = "TU_TOKEN";
  $count = "14";
  
  //LET IT BE
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($ch, CURLOPT_TIMEOUT, 20);
  $result = curl_exec($ch);
  curl_close($ch); 
  return $result;
  }

  $result = fetchData("https://api.instagram.com/v1/tags/".$search."/media/recent/?access_token=".$access_token."&count=".$count);

  $cache = './instagram.json';
  if(file_exists($cache) && filemtime($cache) > time() - 60*60){
  // If a cache file exists, and it is newer than 1 hour, use it
  $instaData = json_decode(file_get_contents($cache));
    } else {
  $instaData = json_decode((file_get_contents($result)));
    file_put_contents($cache,json_encode($instaData));
  }

  foreach ($instaData->data as $post) {
     if(empty($post->caption->text)) {
       // Do Nothing
     }
     else {
        echo '<a class="instagram-unit" target="blank" href="'.$post->link.'">
        <img src="'.$post->images->low_resolution->url.'" alt="'.$post->caption->text.'" width="100%" height="auto" />
        <div class="instagram-desc">'.htmlentities($post->caption->text).' | '.htmlentities(date("F j, Y, g:i a", $post->caption->created_time)).'</div></a>';
     }

  }
?>