Why can't compare data?

Question

WordPress

Good evening, another problem.
I enter the page title into a variable, don't ask why.

$test_name = wp_title('',FALSE);
$str1 = 'уццу';
if ( $test_name == $str1 ){
  echo "Всё работает";
}else{
  echo "Ничего не работает..";
}

and trying to compare with another variable with identical text.
But, nothing comes out ...
What is the reason and where is my mistake?

Answer 1

wp_title

This feature has been deprecated since WordPress 4.4.
Get the title the_title()or get_the_title()(this one is suitable for writing to a variable).