<div class="codebody" id="code34383">
function _clean_input_keys($str)
{
$config = &get_config('config');
if ( ! preg_match("/^[".$config['permitted_uri_chars']."]+$/i",rawurlencode($str)))
{
exit('Disallowed Key Characters.');
} // Clean UTF-8 if supported
if (UTF8_ENABLED === TRUE)
{
$str = $this->uni->clean_string($str);
}
return $str;
}