Simple PHP Instagram feed

get-instagram-feed.php

<?php
        // Created following https://medium.com/@bkwebster/how-to-get-instagram-api-access-token-and-fix-your-broken-feed-c8ad470e3f02
        function get_instagram($user_id=XXXXXXXXX, $count=18, $width=190, $height=190){
        
            $url = 'https://api.instagram.com/v1/users/'.$user_id.'/media/recent/?access_token=XXXXXXXXXXXXXXXXXXXXXX&count='.$count;

            // Also Perhaps you should cache the results as the instagram API is slow
            $cache = './instagram/'.sha1($url).'.json';
            if(file_exists($cache) && filemtime($cache) > time() - 60*60){
                // If a cache file exists, and it is newer than 1 hour, use it
                $jsonData = json_decode(file_get_contents($cache));
            } else {
                $jsonData = json_decode((file_get_contents($url)));
                file_put_contents($cache,json_encode($jsonData));
            }
        
            $result = '<div class="row no-gutters">'.PHP_EOL;
            foreach ($jsonData->data as $key=>$value) {
                $result .= "\t".'<div class="col-6 col-sm-3 col-md-3 col-lg-2"><a data-fancybox="group" 
                                    title="'.htmlentities($value->caption->text).' '.htmlentities(date("F j, Y, g:i a", $value->caption->created_time)).'"
                                    href="'.$value->images->standard_resolution->url.'">
                                  <img class="img-fluid" src="'.$value->images->low_resolution->url.'" alt="'.$value->caption->text.'" width="'.$width.'" height="'.$height.'" />
                                  </a></div>'.PHP_EOL;
            }
            $result .= '</div>'.PHP_EOL;
            return $result;
        }
        
        echo get_instagram();
        ?>