In my single.php, I have a snippet that says if the post is in a particular category, then display the author's bio. I'd like to place another IF statement to surround it so that if the author bio doesn't exist then skip the whole thing. This is what I have
echo '<h6>About the author</h6>';
echo '<em style="font-size:85%;">';
So I want to place an IF so that this will only execite if the author bio doesn't equal null.