HiddenField posting value without name - php

Question

This is weird, and ive never seen this before. Im using post to post values back to the same page for processing. Everything is working fine until I try to use a hidden field to post values. Using the same convention ive used a million times before. The odd thing is that its not posting using the name supplied, its just using hiddenField as the name. Here is the code
<input name="eid" type="hidden" id="eid" value="<? print $_GET['eid']; ?>" />
And im using this to figure it out
print_r($_POST);
This is the result
[hiddenField] => 6
Now, its posting the value, and its posting the correct value that is put into the hidden field before its submitted, but for some reason that I cant seem to figure out, its not using the name attribute that I set in HTML to identify it. All my other values are using there posted names. Any insight would be greatly appreciated as I do not wish to have to deal with an awkward array of hiddenFields later on.
Edit: Here is the rest of the code for the page (pertinent parts)
<?
if (isset($_POST['Submit']))
{
print "<p>EID: " . $_POST['hiddenField'] . "</p>";
$eid = $_POST['hiddenField'];
$name = $_POST['name'];
$email = $_POST['email'];
$ncount = count($name);
$ecount = count($email);
$hash = uniqid() . "-" . count($name);
if ($ncount == $ecount)
{
$test = true;
for ($i = 0; $i < $ncount; $i++)
{
if ($name[$i] == "" || $email[$i] == "")
{
$test = false;
}
}
if ($test)
{
$tickets[] = array();
for ($i = 0; $i< $ncount; $i++)
{
$unique = false;
while (!$unique)
{
$tickets[$i] = generateCode();
$check_query = "SELECT id FROM ticket WHERE ticket_number='" . $tickets[$i] . "'";
if ($stmt = $mysqli->prepare($check_query))
{
$stmt->execute();
$stmt->store_result();
$count = $stmt->num_rows;
$stmt->close();
if ($count == 0)
{
$unique = true;
} else {
print "<p>Not unique</p>";
}
} else {
print "<p>Failed to work database</p>";
}
}
if ($unique == true)
{
$query = "INSERT INTO ticket (`ticket_number`, `event_id`, `name`, `email`,`date_created`, `hash`) VALUES (?,?,?,?,NOW(),?)";
print "<p>Ticket #" . $tickets[$i] . " Event Id: " . $eid . " Name: " . $name[$i] . " Email: " . $email[$i] . " Hash: " . $hash . "</p>";
if ($stmt = $mysqli->prepare($query))
{
$stmt->bind_param('sisss', $tickets[$i], $eid, $name[$i], $email[$i], $hash);
$stmt->execute();
$number = $stmt->affected_rows;
} else {
print "<p>Could not insert into DB because " . $stmt->error . "</p>";
}
}
}
}
}
}
<form action="register.php" method="post">
<table width="896" border="0">
<?
for($i = 0; $i<$_GET['quant']; $i++)
{
?> <tr>
<td><strong>Attendee <? print $z = $i+1; ?></strong></td>
<td> </td>
</tr>
<tr>
<td width="215">Name</td>
<td width="671"><label for="name"></label>
<input type="text" name="name[]" id="name" /></td>
</tr>
<tr>
<td>Email Address</td>
<td><input type="text" name="email[]" id="name2" /></td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<?
}
}
?>
<tr>
<td><input name="eid" type="hidden" id="eid" value="<? print $_GET['eid']; ?>" /></td>
<td><input type="submit" name="Submit" id="Submit" value="Submit" /></td>
</tr>
</table>
</form>