Короткие ссылки средствами modx

$e = $modx->event;
if ($e->name == 'OnHandleRequest') {
    if (is_numeric($_GET['q'])) {
        $url = $modx->makeUrl($_GET['q'],'','','full');
        if (!empty($url)) $modx->sendRedirect($url,array('responseCode' => 'HTTP/1.1 301 Moved Permanently'));
    }
}

<?php
class SixtyCoder {
    public $table = '0123456789abcdefghijkmnopqrstuvwxyzABCDEFGHIJKLMNPQRSTUVWXYZ';
    
    public function to60($number = 0) {
        $number = (int) $number;
        $output = '';
        return $this->divide($number);
    }
    
    public function from60($letters = '0') {
        $length = strlen($letters);
        $number = 0;
        for ($i = 0; $i < $length; $i++) {
            $pos = strpos($this->table, $letters[$i]);
            if ($pos === false) {
                return 0;
            }
            $pow = $length - ($i+1);
            $number = $number + $pos * pow (60, $pow);
        }
        return $number;
    }
    
    public function divide($number = 0, $letters = '') {
        if ($number < 60) {
            $letters = $this->getLetter($number) . $letters;
        } else {
            $rest = $number % 60;
            $letters = $this->getLetter($rest) . $letters;
            $number = ($number - $rest) / 60;
            $letters = $this->divide($number, $letters);
        }
        return $letters;
    }
    
    public function getLetter($number) {
        return substr($this->table, $number, 1);
    }
}

$coder = new SixtyCoder();
$time = time();
echo 'Long: ' . $time;
$short = $coder->to60($time);
echo '
Short: ' . $short;
echo '
Long from short: ' . $coder->from60($short);