function sql()
    {
        $yakitimbittiuleyn='';
        $sql="select * from veriler";
        $query=mysql_query($sql);
        while($kayit=mysql_fetch_array($query))
        {    
        $yakitimbittiuleyn .=$kayit[];
        }
        return $yakitimbittiuleyn;
    }
  print_r(sql());