How I can write php function in form field?

I want to echo a value in text field of caldera form. For example I wanna print value of “the_title()” function in text box, how can I do that? I know something like print date like this {date:y} But what is syntax of writing title function?

I used it like “<?php the_title();?>” and also tried {the_title()}. But none of them is working. How can I do that?