<?php
/*  filename    :    scrap.php
 *  author      :    Deepanshu Thakur
 *  e-mail      :    deepanshu2017@gmail.com , deepanshu2017@hotmail.com
 *  description :    This file takes a instagram userid and scrap all the
 *		               followers of that user and write into file.
 */

require '../src/Instagram.php';
ini_set('memory_limit', '-1');
define('SLEEP_TIME',1);
define('TARGET_USER_ID',432464344);

/////// CONFIG ///////
$username = 'USERNAME';
$password = 'PASSWORD';
$debug = false;

$i = new Instagram($username, $password, $debug);
$myfile = fopen("FILE_NAME.txt", "w") or die("Unable to open file");

try {
	// Login to my account.
	$i->login();

	// Get followers list. Instagram will return maximum of 200 users in a
	// single request.
	$var = $i->getUserFollowers(TARGET_USER_ID);
	do {
		// Take the desired field from the output.
		sleep(SLEEP_TIME);
		$results = $var['users'];
		foreach($results as $result) {
			$username = $result['username'];
			$username = $username . "\n";
			fwrite($myfile, $username);
		}

		// While request have next page link continue with loop else break.
		if (in_array('next_max_id', $var)) {
			$next_max_id = $var['next_max_id'];
			$var = $i->getUserFollowers(TARGET_USER_ID, $next_max_id);
		} else {
			break;
		}
	} while (true);
} catch (InstagramException $e) {
	$e->getMessage();
	fclose($myfile);
    exit();
}
fclose($myfile);