Hello. I have a small problem. I am working on a small website where people will be able to take quizzes for driving lessons. I take my questions and answers from a database. The problem is that i get the first questions and after i submit the answers, the next question won't appear. I don't know what to do. Here is my php code:

<?php
include('db.php');

$query = "SELECT * FROM intrebari";
$exec = mysql_query($query);
$nt = mysql_fetch_array($exec); 
$id = "$nt[id_question]"; 

$currentid = intval($id[0]);
echo "Intrebarea numarul $id";
$next = mysql_query("SELECT id_question FROM intrebari WHERE id_question > $id ORDER BY id_question ASC LIMIT 1");
if (mysql_num_rows($next) > 0){
	$nextid = mysql_result($next, 0);
}

echo "$nextid";

?>

<html>
<body>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<?php echo "$nt[question]"; ?><br>
<input type="checkbox" name="q1[]" value="a" /><?php echo "$nt[answer_a]"; ?><br>
<input type="checkbox" name="q1[]" value="b" /><?php echo "$nt[answer_b]"; ?><br>
<input type="checkbox" name="q1[]" value="c" /><?php echo "$nt[answer_c]"; ?><br>
<input type="submit" name="id[<?php echo $nextid?>]" value = "Trimite" />
</form>
</body>
</html>


<?php
$rspcorecte = 0;
$rspincorecte = 0;
$corect = "$nt[correct_answer]";
$aux="";

	if(isset($_POST['q1']))
		for($i=0; $i < count($_POST['q1']); $i++)
			$aux=$aux.$_POST['q1'][$i];
if ($aux == $corect) {
	//echo "corect";
	$rspcorecte++;
	header("location: index.php?id=$nextid");
	}
	else{
		$rspincorecte++;
		//echo "gresit";
		//header("location:");
		}
		
?>

and my database table look like this:

CREATE TABLE IF NOT EXISTS `intrebari` (
  `id_question` int(11) NOT NULL AUTO_INCREMENT,
  `question` text NOT NULL,
  `answer_a` text NOT NULL,
  `answer_b` text NOT NULL,
  `answer_c` text NOT NULL,
  `correct_answer` varchar(10) NOT NULL,
  PRIMARY KEY (`id_question`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin1 AUTO_INCREMENT=5 ;

Sorry for my bad english, it is not my primary language. Regards, Darius

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hey brother you can use ajax using click function.

hey brother you can use ajax using click function.

I am a beginer, so a piece of code would help me alot. Ty in advance.

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