PHP: a short cut for isset and !empty?

Question

I wonder if there any better ideas to solve the problem below,

I have a form with a number of input fields, such as,

Answer 1

It is an interesting question and I await the answers.

However, little trick, you can do inline :

$pg_title = isset($_POST['pg_title']) && !empty($_POST['pg_title']) ? $_POST['pg_title'] : null;