Problem With Payment Gateway Return URL

[eluser]Total Shop UK[/eluser]
Figured it out

$rdata = urldecode($this->uri->segment('3'));
$rdata_arr = explode('&',$rdata);
$return_data = array();

foreach ($rdata_arr as $value) {
$arr = explode('=',$value);
$return_data[$arr[0]] = $arr[1];
}