title: trim whitespaces in unicode string
body: <p><strong>Hi all!</strong> I have in my database's table records with fields of VARCHAR(100) of charset utf-8 general-ci.
  When I echo it to the web page, it echos string and many-many some square symbols. 
  How can I delete them and leave inly word. Wthas the problem. Will be a problem with searching? Thanx!</p>