title: UTF-8 in PHP regular expressions
body: <p>I need help with regular expressions. My string contains unicode characters and code below doesn't work.</p>
  
  <p>First four characters must be numbers, then comma and then any alphabetic characters or whitespaces... 
  I already read that if i add /u on end of regular expresion but it didn't work for me...</p>
  
  <p>My code works with non-unicode characters</p>
  
  <pre><code>$post = '9999,škofja loka';;
  echo preg_match('/^[0-9]{4},[\s]*[a-zA-Z]+', $post);
  </code></pre>
  
  <p>Thanks for your answers! </p>