title: Special signs such as æøå always stands with lowercase even though forced by strtoupper
body: <p>I am collecting the following names from the database and using <code>strtoupper</code> to make them upper case:</p>
  
  <pre><code>ADFæRD
  
  
  FORRETNINGSFORSTåELSE
  
  
  INTERNT
  
  
  KOMMUNIKATION
  
  
  KOMPETENCEMåLING
  
  
  KULTUR
  
  
  LEDELSE
  
  
  MOTIVATION
  
  
  PRODUKTER
  
  PSYKOLOGI
  
  
  SALG &amp; PERFORMANCE
  
  
  SERVICE
  
  
  SYSTEMER
  </code></pre>
  
  <p>As you can see every character works however the special characters like ÆØÅ is always lowercase.</p>
  
  <p>Is there a way i can fix this?</p>