Pagination for Pages and Posts

Post Navigation

Here’s the way its done in the Twenty Twelve themes single.php file however it looks like Twenty Fourteen has a better solution which works for pages as well.

<nav class="nav-single">
                <h3 class="assistive-text"><?php _e( 'Post navigation', 'twentytwelve' ); ?></h3>
                <span class="nav-previous"><?php previous_post_link( '%link', '<span class="meta-nav">' . _x( '&larr;', 'Previous post link', 'twentytwelve' ) . '</span> %title' ); ?></span>
                <span class="nav-next"><?php next_post_link( '%link', '%title <span class="meta-nav">' . _x( '&rarr;', 'Next post link', 'twentytwelve' ) . '</span>' ); ?></span>
            </nav><!-- .nav-single -->

You could hook this code in from your functions file using a theme specific hook or filtering the WordPress content hook.

There’s some good examples of using the content filter in your functions file here.

More http://codex.wordpress.org/Next_and_Previous_Links

Page Navigation

Here’s a tutorial i wrote which uses the code from Twenty Fourteen theme.

It creates a template tag you can use in a custom function with hook and conditional tags or directly in a template file.