Internal Or External page redirect page in wordpress

if you want to redirect you wp-page to a internal and external url then you should take a PHP file in theme folder.
01. take a php file "redirect.php" in this path folder : "wp-content/themes/[your theme folder].
02. put the code below:

<?php
/*
Template Name: Redirect page.
*/
 wp_redirect('your url'); exit;
?> 

03. if you redirect in internal page then url should be like this: wp_redirect(home_url().'/your page path');
otherwish you can direct put the url in between single citation.

04. go to you dashboard and Pages >> Add New you can see the option in template of Page Attributes section. Select the template to Redirect the page.