public function param_unset($param, $url = false)
{
if ($url == false) {
$url = $this->string();
}
$site = $this->site_url();
$url = str_ireplace($site, '', $url);
$segs = explode('/', $url);
$segs_clean = array();
foreach ($segs as $segment) {
$origsegment = $segment;
$segment = explode(':', $segment);
if ($segment[0] == $param) {
} else {
$segs_clean[] = $origsegment;
}
}
$segs_clean = implode('/', $segs_clean);
$site = $segs_clean;
return $site;
}