WP Redirect Template

redirect.php

<?php
  /*
    Template Name: Redirect
  */

  if ($post->post_content != "") {
    $url = wp_strip_all_tags($post->post_content);
  } else if (!$post->post_parent) {
    $children = get_pages("child_of=".$post->ID."&sort_column=menu_order");
    $url = get_permalink($children[0]->ID);
  }

  wp_redirect( $url, 301 );
  exit;
?>