General mailing feature question

[influx]

I am incorporating a mailing list feature for my blog users and I was wondering what I need to fix in the database query.

I have a page where my users can input up to 10 email addresses with 10 accompanying names. Everything in this code works fine except for the last two values I want inputted (SESSIONemail and SESSIONname).

There has to be something wrong because it is always inputting NULL instead of the name or the email.

Here is the code:

for($k=1;$k<=10;$k++)
{
  if($_SESSION['email_'.$k])
  {
    $query = "INSERT INTO mail_list (m_id, m_username, m_email, m_name) VALUES ('$user_id','{$_SESSION['username']}', '{$_SESSION['email_{$k}']}', '{$_SESSION['name_{$k}']}')";
    mysql_query($query) or die(mysql_error());
  }
}

Thanks!

[influx]

here is what it outputted:

INSERT INTO mail_list (m_id, m_username, m_email, m_name) VALUES ('862','johndoe', '', '')
INSERT INTO mail_list (m_id, m_username, m_email, m_name) VALUES ('862','johndoe', '', '')

Meaning, even though I inputted the last two things that should be inputted (SESSIONemail and SESSIONname), they still aren't being recognized...there is a problem with {$SESSION['email{$k}']} and {$SESSION['name{$k}']}...I just don't know how to fix it!

I'm sure I'm close

[devinemke]

you should return the data from the form as an array instead of a bunch of variables with appended names. here is a simple example:

<?php
if (!isset($_POST['submit']))
{
	echo '
	<form action="" method="POST">
	enter emails / names:<br>
	';

for ($i = 1; $i <= 10; $i++)
{
	echo $i . '. email: <input type="text" name="data[' . $i . '][email]">
	name: <input type="text" name="data[' . $i . '][name]"><br>';
}

echo '<input type="submit" name="submit" value="submit">
</form>
';
}
else
{
	foreach ($_POST['data'] as $key => $value)
	{
		if ($value['email'] && $value['name'])
		{
			$sql = "INSERT INTO mail_list (m_id, m_username, m_email, m_name) VALUES ('$user_id', '" . $_SESSION['username'] . "', '" . $value['email'] . "', '" . $value['name'] . "')";
			echo $sql . '<br>';
		}
	}
}
?>