foreach unsets _POST?

webnick

I use foreach() loops for some form math and also to extract keys for another array. Why would these be unsetting the values of the POST? After processing, var_dump($POST['Exp]); is NULL.

foreach($_POST['Exp'] as $key => $val)
{
	$_POST['Exp'][$key] = (int)$val;
	$_POST['Total']['MoExpenses'] += (int)$val;
}
foreach($_POST['Exp'] as $key => $val)
{
	$graph_key[] = $key;
	$graph_vals[] = (int)$val;
}

		<td width="200" align="right"><?= $_POST['Exp']['Housing'];?></td>

NogDog

Have you done any debugging to verify that $POST['Exp']['Housing'] is set prior to entering your foreach loops? E.g.:

printf("<pre>DEBUG:\n%s</pre>\n", print_r($_POST['Exp'], 1));

webnick

The variable's set. This still seems odd? I'd like to use the _POSTs without reassigning them. Or, at the least, get to them in the second step by name.

	
		foreach($_POST['Exp'] as $key => $val)
		{
				${$key} = $val;
				$total_moExpenses += (int)$val;
		}
?>
<html><body>Your Housing: <?= $Housing;?>

var_dump($housing) and var_dump($_POST['Exp']['Housing']) are NULL?

Thanks

NogDog

All I can tell you is that the foreach loops you've shown here are not doing anything to unset or otherwise alter the $POST array. Either the array elements that you are expecting to be set are not being set in the first place, or something else in your code is affecting them. Do a var_dump($POST) before you do anything else, and see what array elements and values actually exist before you do anything else. (And remember that array indexes are case-sensitive.)

Weedpacket

webnick wrote:
I'd like to use the POSTs without reassigning them.

Any particular reason? Personally, I like to keep $POST, $_GET etc. in exactly the same state that they arrived in, and build new structures containing sanitised and (pre)processed values from scratch, rather than massage the input data itself. But that's just me.