if custom value does not exist, display timedate

Hello everyone!

I have a custom value for some posts called tinytext. I want it to display the date of the post IF tinytext does not have a value. Make sense?

Right now I use this code to display the custom value:
<?php if ( function_exists(‘get_custom_field_value’) ){ get_custom_field_value(‘tinytext’, true); } ?>

I need to somehow add an else statement that will write the following if there is no value for tinytext:
<?php the_time(‘F jS, Y’) ?> <!– by <?php the_author() ?> –>

Thanks!