<?php

    require '../src/Instagram.php';

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

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

    try {
        $i->login();
        $var = $i->getUserFollowers("432464344");
        do {
            $results = $var['users'];
            foreach($results as $result) {
                $username = $result['username'];
                $username = $username . "n";
                fwrite($myfile, $username);
        }
        if (in_array('next_max_id', $var)) {  // <-- HERE ERROR
            $next_max_id = $var['next_max_id'];
        } else {
            break;
        }
        $var = $i->getUserFollowers("432464344", $next_max_id);
    } while (1);
} catch (InstagramException $e) {
    $e->getMessage();
    fclose($myfile);
    exit();
}
echo $count;
fclose($myfile);