Help with simple "if"-statement

[awp29]

Hi people - i just recently started codingin PHP.

I have this scenario.

I have two columns in my database - one with THE right answer and another with a list of wrong answers. I'd like the if statement to say something like ->

IF $wrong contains the value from $right AND $wrong is not empty THEN "correct move on" ELSE WRONG try again

Below is what i found out myself - but how do i write the rest ? (the contains thingy and the "and if empty")

<?php
$wrong=$row_answers['Wronganswers'];
$right=$row_level['answer'];
if ($wrong == $right)
echo "correct - Move on";
else
echo "wrong - try again";
?>

i hope you guys can help me !

thanx in advance

[rincewind456]

This does what you're asking

<?php
$wrong=$row_answers['Wronganswers'];

$right=$row_level['answer'];

if ($wrong == $right || $wrong = ''){
	echo "correct - Move on";
} else {
	echo "wrong - try again";
}
?>

But are you sure the logic is right?
You're comparing a wrong answer against a correct answer and saying it is correct!

[awp29]

hi ... and thanx for the answer ....

well .. this is how the logic is explained

i have a riddle-page where people should guess for the right answer. They type in they answers in the $wrong table and i want to validate it against the $right.

so i have for example 10 "wrong answers - or answer tries" and only one right answer, predefined.

by the way - didnt you write equals insted of contains in your reply ? .. to me it looks that way... isnt there a way to write "contains" instead of equals ?

• AWP

[bpat1434]

He compared the strings $wrong and $right in his reply.

Well, your logic seems jarbled. Let's say this:

-- Question: How much would could a wood chuck chuck, if a wood chuck could chuck wood?
-- Try: A would chuck could chuck as much chuck as a would chuck could chuck wood.
----> We run that through validation, that's wrong, add it to our table of tries
-- Try: A wood chuck could chuck as much would as a would chuck could chuck wood.
----> We run that through validation, that's wrong, add it to our table of tries
-- Try: A wood chuck could chuck as much wood as a wood chuck could chuck wood.
----> We run that through validation, that's close, but still wrong, add it to our table of tries
-- Try: If a wood chuck could chuck wood, a wood chuck could chuck as much wood as a wood chuck could chuck wood.
----> We run that through validation, it's correct, so we count the number of tries, and then let them move on (guessing that's what you want them to do)

Well, the code for this would be:

<?php
// For each question, just add it to the array, 
// the array key being the question number
$answers[1] = 'If a wood chuck could chuck wood, a wood chuck could chuck as much wood as a wood chuck could chuck wood.';

function add_try($user, $answer, $question)
{
  $user = mysql_real_escape_string($user);
  $question = mysql_real_escape_string($question);
  $answer = mysql_real_escape_string($answer);

  $query = "INSERT INTO `table_name` (user, qID, try) VALUES ('$user', '$question', '$answer')";
  $result = mysql_query($query);
  if(!$result){ return FALSE; }
  else{ return TRUE; }
}

function count_tries($question, $user)
{
  $user = mysql_real_escape_string($user);
  $question = mysql_real_escape_string($question);

  $query = "SELECT COUNT(*) AS tries FROM `table_name` WHERE user='$user' AND qID='$question'";
  $result = mysql_query($query);
  if(!$result){ return FALSE; }
  else{
    if(mysql_num_rows($result)>0)
    {
      list($tries) = mysql_fetch_array($result); 
      return $tries; 
    }
    else{ return 1; }
  }
}

if(isset($_POST['submit']) && $_POST['submit'] != '')
{
  // Check the input
  if($_POST['answer'] == $answers[$_POST['question']])
  {
    echo 'Correct!!<br>You answered correctly in '.count_tries($_POST['question'], $_POST['user']).' tries.<br><br>';
    echo '<a href="page.php?question='.$_POST['question']+1.'">Next Question</a>';
  }
  else
  {
    $add = add_try($_POST['user'], $_POST['answer'], $_POST['question']);
    if($add === TRUE)
    {
      echo 'Sorry, that was incorrect.  Please try again!';
      // Show them the question again
    }
    else
    {
      echo 'We were unable to add your try to the database.  Please try again later.<br><br>Sorry, that was incorrect.  Please try again!';
      // Show them the question again
    }
  }
}

?>

That might be something more up your ally....

~Brett