How to Redirect one Page url to another Page url

I want to redirect one page to another page which is something like below..
https://www.sharrva.com/shivane.php?emulatemode=2 into https://www.sharrva.com/shivane.php

I have tried the below code on .htaccess but no luck.

<?php
 
header("Location: https://www.sharrva.com/shivane.php");
 
exit;
?>

i am trying using 301 but not redirected.
any one can help on this