mxwright

<?php

    if (!isset($_GET['user'])) {
        if (!isset($_GET['hashtag'])) {
            exit('Not a valid RSS feed. You didn\'nt provide an Instagram user or hashtag. Send one via a GET variable. Example .../instarss.php?user=snoopdogg');
        }
    }

    if (isset($_GET['user']) && isset($_GET['hashtag'])) {
        exit('Don\'t request both user and hashtag. Request one or the other.');