Simple POST random number issue in PHP
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by MrEnder
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Published on 2010-03-30T00:16:51Z
Indexed on
2010/03/30
0:23 UTC
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Ok I am trying to make something to ask you random multiplication questions. Now it asks the questions fine. Generates the random questions fine. But when it reloads the page the random numbers are different...
how can I fix this?
<?php
$rndnum1 = rand(1, 12);
$rndnum2 = rand(1, 12);
echo "<h3>". $rndnum1 . " x ";
echo $rndnum2 . "</h3>";
if($_SERVER["REQUEST_METHOD"] == "GET") {
$answer=0;
}
else if($_SERVER["REQUEST_METHOD"] == "POST") {
$answer=trim($_POST["answerInput"]);
$check=$rndnum1*$rndnum2;
if($answer==$check) {
echo "Correct!";
}
else {
echo "Wrong!";
}
}
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" >
<table>
<tr>
<td>
First Name:
</td>
<td>
<input type="text" name="answerInput" value="<?php echo $answer; ?>" size="20"/>
</td>
<td>
<?php echo $answerError; ?>
</td>
</tr>
<tr>
<td class="signupTd" colspan="2">
<input type="submit" name="submit" value="Submit"/>
</td>
</tr>
</table>
</form>
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