Problem s anketou

<?php
    if (isset($_GET['addvote'])) {  //funkcia na zapacitanie hlasu
    $i = 0;
  while($_POST['odpoved'] !=$i) {
  $i++;
}
$maxlim = $i+1;
    mysql_query("UPDATE `odpovede` SET `pocet` = '($pocet + 1)' WHERE `idinq` = '".$row['id']."' ORDER BY `id` LIMIT $i,$maxlim"); // toto ma zvysit pri odpovedi pocet hlasov a neviem ako zapisat zvysenie poctu o 1 a este neviem ako nadstavit ten limit tak aby upravilo tu moznost pre ktoru sa hlasovalo napr. hlasujem za moznost 5 tak dam limit 5,6 ak to spravne chapem
    mysql_query("UPDATE `ankety` SET `pochlas` = '($pochlas + 1)' ORDER BY `id` DESC"); //zvysuje pocet vsetkych prispevkov v ankete a potrebujem ho tiez zvysit o jeden
    mysql_query("UPDATE `users` SET `hlasoval` = '1' WHERE `id` = '".$user->id."' ");
    header("location: index.php?page=main");
  }

  $res = mysql_query("SELECT `id`,`otazka` FROM `ankety` ORDER BY `id` DESC LIMIT 1");
  if (mysql_num_rows($res) == 1) {
  $odp = mysql_fetch_array($res);
  echo "<form action="?page=inq&addvote" method="post">
  <table border="0" cellpadding="0" cellspacing="0">";
  echo "<tr><td>".$odp['otazka']."</td></tr>";
  }
 
  $resodp = mysql_query("SELECT * FROM `odpovede` WHERE `idinq` = '".$row['id']."' ORDER BY `id` ");
   $j = 1;
  if (mysql_num_rows($resodp) >= 1) {
  while ($row = mysql_fetch_array($resodp)) {
    echo "<tr><td><input type="radio" name="odpoved" value="$j">".$row['odpoved']."</td></tr>";
    $j++;
  } 
  echo "</table></form>";
       
?>

UPDATE ankety SET pochlas = pochlas+1;

$res = mysql_query("SELECT `id`,`otazka` FROM `ankety` ORDER BY `id` DESC LIMIT 1");
  if (mysql_num_rows($res) == 1)

$num = mysql_num_rows($res)

$delenec= 5;
$delitel= 2;
$vysledok= $delenec / $delitel;

$cislo=explode('.',$vysledok);
if($cislo[1]>=5) $cislo[0]++;

$zaokruhlenec= $cislo[0];

round($var)