WordPress 4.0 Title excerpt

Hello i have been using code below for shorten my titles. But with WordPress 4.0 i think function the_title changes a bit and my code stop work. I guess it is problem about parameters.

<?php if (strlen($post->post_title) > 40) {
echo substr(the_title($before = ”, $after = ”, FALSE), 0, 20) . ‘…’; } else {
the_title();
} ?>