WordPress: Redirect to post/page after publishing

redirect-after-publish-v1.php

<?php

// Redirect to the post/page itself after publishing or updating a post in
// WordPress. This code is from the WordPress forum [1], modified so it doesn't
// redirect when saving a draft.

// [1]: http://wordpress.org/support/topic/redirect-to-new-post-after-publish


add_filter('redirect_post_location', function($location)
{
    global $post;

    if (
        (isset($_POST['publish']) || isset($_POST['save'])) &&
        preg_match("/post=([0-9]*)/", $location, $match) &&
        $post &&
        $post->ID == $match[1] &&
        (isset($_POST['publish']) || $post->post_status == 'publish') && // Publishing draft or updating published post
        $pl = get_permalink($post->ID)
    ) {
        // Always redirect to the post
        $location = $pl;
    }

    return $location;

});

redirect-after-publish-v2.php

<?php

// This version redirects to the homepage for new posts (since new posts always
// appear on the homepage on my blog), and tries to redirect to whatever page
// you were on before clicking Edit if you're editing an existing post.


add_filter('redirect_post_location', function($location)
{
    global $post;

    if (
        (isset($_POST['publish']) || isset($_POST['save'])) &&
        preg_match("/post=([0-9]*)/", $location, $match) &&
        $post &&
        $post->ID == $match[1] &&
        (isset($_POST['publish']) || $post->post_status == 'publish') && // Publishing draft or updating published post
        $pl = get_permalink($post->ID)
    ) {
        if (isset($_POST['publish'])) {

            // Homepage for new posts only
            $location = home_url();

        } elseif ($ref = wp_get_original_referer()) {

            // Referer for edited posts
            $ref = explode('#', $ref, 2);
            $location = $ref[0] . '#post-' . $post->ID;

        } else {

            // Post page as a last resort
            $location = $pl;

        }
    }

    return $location;

});