Question

I am using the following with a quiz I am making, it checks the table to see if the user has already posted the answer to the question and isn’t hammering the submit button, the problem I am having is its not posting the info to the database for some odd reason. If I take out the if statement and the first database looking and just post the data it works fine, but when I check the result of the first query first, it doesn’t appear to work, even if the user hasn’t submitted an answer yet.

 <?php
 $quizID = $_GET['quiz'];
$userID = $_GET['user'];
$quizselectanswer = $_POST['quizselectanswer'];
$cf_created = date("y/m/d");
$questionID = $_POST['questionID'];

// Check to see if user answered question already
 $result = mysql_query("SELECT questionID,userID FROM itsnb_chronoforms_data_answerquiz WHERE     questionID='$questionID' AND userID='$userID' LIMIT 1") or die(mysql_error());

while($row = mysql_fetch_array($result))
{ 
if (empty($row))
{
    mysql_query("INSERT INTO itsnb_chronoforms_data_answerquiz (cf_created,     questionID,quizselectanswer,quizID, userID)
    VALUES ('$cf_created', '$questionID', '$quizselectanswer', '$quizID','$userID')") 
    or     
    die(mysql_error());
}else{

}
}
?>

My database looks like this itsnb_chronoforms_data_answerquiz cf_id, cf_uid, cf_created, cf_modified ,cf_ipaddress ,cf_user_id ,questionID, quizselectanswer, quizID ,userID.

Answer 1

Try like this it may help you

// Check to see if user answered question already
 $result = mysql_query("SELECT * FROM itsnb_chronoforms_data_answerquiz WHERE questionID='$questionID' AND userID='$userID' LIMIT 1") or die(mysql_error());

$row = mysql_fetch_array($result);
if(!empty($row)) 
{
    while($row){
        //some statement
    }
}else{
    mysql_query('INSERT INTO itsnb_chronoforms_data_answerquiz (cf_created, questionID,quizselectanswer, quizID, userID)
    VALUES ("'.$cf_created.'", "'.$questionID.'", "'.$quizselectanswer.'", "'.$quizID.'","'.$userID.'")') or die(mysql_error());
}
?>