Problem med Apache och vissa tecken

Disc temp /dev/hda: 32°C
Disc temp /dev/hdb: 33°C

Disk 1 (/dev/hda): 32�C
Disk 2 (/dev/hdb): 33�C

 $drives = explode("||","|" . $RET); 
      foreach ($drives as $CURDRIV)	
      {
        $SECTIONS = explode("|", $CURDRIV);	
      
        if ($dev == $SECTIONS['0'])
        {
            return $SECTIONS['2'] . "°" .  $SECTIONS['3']; 
        }
      }       
  return 0;

}