The trim() function prints the cracks. What to do?

Question

PHP

Hello!
Here is the code:

<pre>
<?php
  $str = "Фриланс";
  print trim($str,"Фри");
?>
</pre>

Here is the result:
�анс
Here is the documentation: php.net/manual/ru/function.trim.php
How to fix it?
Thanks in advance!

Answer 1

How to fix?

Do not use trim for this purpose.
And look, for example, at substr, or rather at its analogue for multibyte strings mb_substr();

$str = "Фриланс";
mb_substr($str, 3, null, "UTF-8");

Result:
ланс