Wordpress next or previous post link

Question

I a wordpress template file I want to show the next post link and if next post is not available then I want to show the previous post link.

I used the following code but it shows error message.

<?php if (next_post_link()) ? next_post_link('%link'); : previous_post_link('%link') ; ?>

I think it is php syntax error.

Any Help?

Answer 1

Try this:

<?php
    echo (next_post_link()) ? next_post_link('%link') : previous_post_link('%link');
?>