compat.inc.php

<?php

if (!function_exists('rex_get_file_contents'))
{
    function rex_get_file_contents($path)
    {
        return file_get_contents($path);
    }
}

if (!function_exists('rex_info'))
{
    function rex_info($str)
    {
        return rex_warning($str);
    }
}

if (!isset($REX['USER'])) {
  if (isset($REX_USER)) {
    $REX['USER'] = $REX_USER;
  }
}