如何在CI中获得最后两个uri段？

I want to last two uri segment. just for example i have one url like:

www.abcd.com/country/state/city AND Next time this url is dynamic so like this:

www.abcd.com/grade/country/state/city

i want to last two uri segments, please help and solve this problem.

You can use uri segments like so. Any thing after www.abcd.com/ is a uri segment

echo $this->uri->segment(1); // This should echo grade

echo $this->uri->segment(2); // This should echo country

echo $this->uri->segment(3); // This should echo state

echo $this->uri->segment(4); // This should echo city

Segment userguide

You can achieve it by using

if ($this->uri->segment(1) == "country") {
    echo $this->uri->segment(2); //  echo state

    echo $this->uri->segment(3); //   echo city
}
if ($this->uri->segment(1) == "grade") {
    echo $this->uri->segment(3); //  echo state

    echo $this->uri->segment(4); //   echo city
}

Yaah, i have found solution of this problem

$record_num = $this->uri->segment_array();
echo "last - ".$record_num[count($record_num)];
echo "<br>second last - ".$record_num[count($record_num)-1];
exit;