URL / Controler realted

[eluser]xwero[/eluser]
if you have other words that are also valid you could do something like this

Code:

$thirdsegment = array('location', 'someword', 'anotherword');
$result = array_search($this->uri->segment(3),$thirdsegement);
if(is_numeric($result))
{
   // valid third section
   switch($result)
   {
     case 0: /* do something */; break;
     case 1: /* do something */; break;
     case 2: /* do something */; break;
   }
}
else
{
  // not valid third section
}

edit : the check for no third segment has to happen before you start checking for the segment value.