public function create($url)
{
$urls = $this->storage->getYAML('urls');
// check to see if it exists already
$index = count($urls) ? array_search($url, array_column($urls, 'url')) : FALSE;
// if so, return existing short url
if ($index !== FALSE) {
return $urls[$index]['shortcode'];
}
// else, generate, store and return
// add one here because can't encode an ID of 0, otherwise it breaks on first run
$shortcode = ShortUrl::encode(count($urls) + 1);
$urls[] = array('shortcode' => $shortcode, 'url' => $url, 'created_date' => time(), 'clicks' => 0);
$this->storage->putYAML('urls', $urls);
return $shortcode;
}