Instagram (API) popular scraper and downloader with redis and curl, description here: http://256cats.com/how-to-scrape-instagram-and-quickly-download-images/

download.php

<?php
$dir = __DIR__.'/photos';
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);

function get($url) {
	//curl get
	echo $url."\n";
	$curlOptions = array(
		CURLOPT_ENCODING => 'gzip,deflate',
		CURLOPT_AUTOREFERER => 1,
		CURLOPT_CONNECTTIMEOUT => 10, // timeout on connect
		CURLOPT_TIMEOUT => 10, // timeout on response
		CURLOPT_URL => $url,
		CURLOPT_SSL_VERIFYPEER => false,
		CURLOPT_SSL_VERIFYHOST => false,
		CURLOPT_FOLLOWLOCATION => true,
		CURLOPT_MAXREDIRS => 9,
		CURLOPT_RETURNTRANSFER => 1,
		CURLOPT_HEADER => 0,
		CURLOPT_USERAGENT => "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36",
		CURLOPT_VERBOSE => true,
		CURLINFO_HEADER_OUT  => true,
	);
	$curl = curl_init();
	curl_setopt_array($curl, $curlOptions);
	$data = curl_exec($curl);
	curl_close($curl);
	return $data;
}
while(true) {
	$item = $redis->brPop('photo:queue', 10); // wait until we get new item from Redis
	$retry = 1;
	if($item) {
		$item = unserialize($item[1]);
		$filename = $dir.'/'.$item['filename'];
		
		if(!file_exists($filename)) {

			while(!($photo = get($item['images']->standard_resolution->url))) { 
				echo "retrying download {$retry}\n"; 
				sleep(2); 
				$retry++;
			}
			
			file_put_contents($filename, $photo);
			echo "Loaded {$filename}\n";
		
		}
	} else {
		echo "no items in Redis\n";
	}

}

scraper.php

<?php
require_once 'vendor/autoload.php';
use MetzWeb\Instagram\Instagram;

date_default_timezone_set('UTC');

$redis = new Redis();
$redis->connect('127.0.0.1', 6379);

$instagram = new Instagram(array(
    'apiKey'      => 'YOUR_APP_KEY',
    'apiSecret'   => 'YOUR_APP_SECRET',
));
$accessToken = 'YOUR_ACCESS_TOKEN';
$instagram->setAccessToken($accessToken);
$search = $instagram->getPopularMedia();

$data = $search->data;
foreach($data as $d) {
	if($d->type == 'image') {
		$item = array(
			'images' => $d->images,
			'caption' => $d->caption,
			'created_time' => $d->created_time,
			'id' => $d->id,
			'filename' => $id.'.jpg'
		);
		$redis->lPush('photo:queue', serialize($item));
	}
}