Untitled

<html>

   <head>
    <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
    <script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
    <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
   </head>

   <body>
      <?php
         if(isset($_POST['update'])) {
            $dbhost = 'localhost';
            $dbuser = 'root';
            $dbpass = '';
            $dbname = "s86884_jonatan2";

            $conn = mysql_connect($dbhost, $dbuser, $dbpass, $dbname);

            if(! $conn ) {
               die('Could not connect: ' . mysql_error());
            }

            $ID_Cena = $_POST['ID_Cena'];
            $Aktualna_Od = $_POST['Aktualna_Od'];
            $Aktualna_Do = $_POST['Aktualna_Do'];
            $Cena = $_POST['Cena'];

            $sql = "UPDATE tcena SET Aktualna_Od =DATE'$Aktualna_Od', Aktualna_Do =DATE'$Aktualna_Do', Cena = '$Cena'
               WHERE ID_Cena = $ID_Cena ";
            mysql_select_db('s86884_jonatan2');
            $retval = mysql_query( $sql, $conn );

            if(! $retval ) {
               die('Could not update data: ' . mysql_error());
            }
            echo "Updated data successfully\n";

            mysql_close($conn);
         }else {
            ?>
               <form method = "post" action = "<?php $_PHP_SELF ?>">
                  <table width = "400" border =" 0" cellspacing = "1"
                     cellpadding = "2" align = center>

                     <tr>
                        <td width = "100">ID_Cena: </td>
                        <td><input name = "ID_Cena" type = "text"
                           id = "ID_Cena"></td>
                     </tr>

                     <tr>
                        <td width = "100">Aktualna_Od: </td>
                        <td><input name = "Aktualna_Od" type = "text"
                           id = "Aktualna_Od"></td>
                     </tr>

                     <tr>
                        <td width = "100">Aktualna_Do: </td>
                        <td><input name = "Aktualna_Do" type = "text"
                           id = "Aktualna_Do"></td>
                     </tr>

                     <tr>
                        <td width = "100">Cena</td>
                        <td><input name = "Cena" type = "text"
                           id = "Cena"></td>
                     </tr>

                     <tr>
                        <td width = "100"> </td>
                        <td> </td>
                     </tr>

                     <tr>
                        <td width = "100"> </td>
                        <td>
                           <input name = "update" type = "submit"
                              id = "update" value = "Update">
                        </td>
                     </tr>

                  </table>
               </form>
            <?php
         }
      ?>

   </body>
</html>