Please help me coding static page

[eluser]dhaulagiri[/eluser]
well can you pls explain how can i solve this with routing ? For the above problem did this in sidebar

Code:

<?php
if ($this->uri->segment(1) === 'welcome')
{
    echo 'lists for welcome';
    
}
elseif($this->uri->segment(1) === 'blog')
{
    echo ' lists for blog';
}
else
{
    echo 'please add links';
}
?>