Jeg har prøvet med nedenstående, men har problemer med at indtastet min og max kun virker 1 gang og skal indtastes for hver opgave. Meningen var at min og max kun skulle indtastes 1 gang og derefter skulle der efter hver "Check answer" automatisk genereres ny opgave.
Forøvrigt startes der med hver gang (1.gang) man åbner siden med opgaven 0 + 0. Der skulle gerne først startes med opgavegenerering når min og max værdierne er angivet.
<?php
session_name("practice");
session_start();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<!-- Minus AutoDato -->
<title>[Ingen titel]</title>
<?php
$first_number = rand($_POST['min'],$_POST['max']);
echo $rand;
$second_number = rand($_POST['min2'],$_POST['max2']);
echo $rand;
if ($_GET['op'] == "clear") $_SESSION = array();
if (!isset($_SESSION['num_right'])) $_SESSION['num_right'] = 0;
if (!isset($_SESSION['num_wrong'])) $_SESSION['num_wrong'] = 0;
if (!isset($_SESSION['num_probs'])) $_SESSION['num_probs'] = 0;
if ($_POST['form_submitted'] == "yes") {
$fn = $_POST['fn'];
$sn = $_POST['sn'];
$ca = $fn + $sn;
$_SESSION['num_probs']++;
$np = $_SESSION['num_probs'];
$sa = $_POST['submitted_answer'];
if ($ca == $sa) {
echo "<p>Hooray, you answered problem # $np correctly: $fn + $sn = $ca</p>";
$_SESSION['num_right']++;
} else {
echo "<p><font color='red'><b>Darn, you answered problem # $np incorrectly: $fn + $sn = $ca, <i>not</i> $sa</b></font> </p>";
$_SESSION['num_wrong']++;
}
}
?>
<meta name="Generator" content="Stone's WebWriter 4">
</head>
<body>
<table>
<form action="#" method="post">
<table border="0">
<tr>
<td>1. ciffer min: <input type="text" name="min"></td>
<td>1. ciffer max: <input type="text" name="max"></td>
</tr>
<tr>
<td>2. ciffer min: <input type="text" name="min2"></td>
<td>2. ciffer max: <input type="text" name="max2"></td>
</tr>
</table>
<br>
<input type="submit" value="Start">
<form method='post' action='<?php echo $_SERVER['PHP_SELF'] ?>'>
<input type='hidden' name='form_submitted' value='yes'>
<input type='hidden' name='fn' value='<?php echo $first_number ?>'>
<input type='hidden' name='sn' value='<?php echo $second_number ?>'>
<tr>
<td><?php echo $first_number ?></td>
<td> + </td>
<td><?php echo $second_number ?></td>
<td> = </td>
<td><input type='text' name='submitted_answer' value='' size='2'></td>
<td><input type='submit' value='Check Answer'></td>
</tr>
</form>
</table>
<br />
Number of right answers: <?php echo $_SESSION['num_right'] ?><br />
Number of wrong answers: <?php echo $_SESSION['num_wrong'] ?><br />
<br />
<a href='<?php echo $_SERVER['PHP_SELF']."?op=clear"; ?>'>Start over</a>
</body>
</html>
Ny bruger
Nybegynder
Opret
Preview
