[RESOLVED] Retrieving array posted through a form

[Mandakins]

With the latest PHP release I'm not sure how to get array values that are posted from a form. This is what I would normally do:

<form method = "post" action = "doit.php">
<input type = "checkbox" name = "math[]" value = "Basic"> Basic <BR>
<input type = "checkbox" name = "math[]" value = "Algebra"> Algebra <BR>
<input type = "checkbox" name = "math[]" value = "Calculus"> Calculus <BR>
<input type = "submit" name = "submit" value = "Do Something">
</form>

Resulting page:

<?php
$math = $_POST['math'];

if ($math != "") {
$math = implode("<BR>", $math);
}

// do whatever you want with the math list now
?>

I assume I'm not getting the posted array correctly because if I echo math, there isn't anything there - not even an array. I tried:
$math = $_POST['math'][]; with no luck as well.

Any help or links to an explanation of how to get posted form data with the latest release of php would be greatly appreciated! Thanks!!!

[laserlight]

$_POST['math'] is an array. Use a foreach loop on this array.

[Mandakins]

There is nothing in the variable $math after it's passed to my resulting page. That's my problem. Do you have any suggestions as to why it is not getting my posted array data?

[laserlight]

Test with:

<form method = "post" action = "<?php echo $_SERVER['PHP_SELF']; ?>">
<input type = "checkbox" name = "math[]" value = "Basic"> Basic <BR>
<input type = "checkbox" name = "math[]" value = "Algebra"> Algebra <BR>
<input type = "checkbox" name = "math[]" value = "Calculus"> Calculus <BR>
<input type = "submit" name = "submit" value = "Do Something">
</form>
<?php
if (isset($_POST['math'])) print_r($_POST['math']);
?>

[Mandakins]

I think it's the server causing the problems. I've been testing in a secure (https) environment. I just tested the same code on a different server and it works perfectly.

Thanks!