title: How to avoid passing argument in URL
body: <p>Hi professionals have a good day.</p>
  <p>I am new to this Codeigniter framework.</p>
  <p><strong>Question 1:</strong> how to avoid passing argument in url or is there any other option like using dummy value or default value instead of passing original value?</p>
  <p><strong>Example :</strong> Currently i have like this</p>
  <p><code>http://localhost/manage?keyword1=SAP&amp;keyword2=LAB</code></p>
  <p>but i want it to be like this</p>
  <pre><code>http://localhost/manage?keyword1=XXX&amp;keyword2=YYY
  </code></pre>
  <p><strong>Question 2:</strong> i have seen  some example, in that they are using remap function to accomplish this task but i didnt get how <em><strong>remap</strong></em> work . is this right way do to?</p>
  <p>please give your suggestion and tell me the right way and sorry it may be a silly question but i searched lot i didnt anything . thanks in advance</p>