<?php
$matheus = new Matheus;

class Matheus{
  private $hash = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
  private $key = "3MX1UWemkf8NBVwhiR60PxY4vnQOHbpSuJraGcgL9lF2otqK7dT5jsAZCDyIzE";

  function Encode($url)
    {
        $url = trim($url);
        $url = strtr(base64_encode($url), $this->key, $this->hash);
        return $url;
    }

    function Decode($url)
    {
        $url = trim($url);
        $url = base64_decode(strtr($url, $this->hash, $this->key));
        return $url;
    }

}
?>