Second Select Won't POST - php

Question

I have a form that includes two <select> tags:
<li>
<label for="uname">Select User : </label>
<select id="uname" name="uname">
<option value="3">Kaine McAuley</option>
</select>
</li>
<li>
<label for="uweek">Week Number : </label>
<select id="uweek" name="uweek">
<option value="1">Week 1</option>
<option value="2">Week 2</option>
<option value="3">Week 3</option>
<option value="4">Week 4</option>
<option value="5">Week 5</option>
<option value="6">Week 6</option>
<option value="7">Week 7</option>
<option value="8">Week 8</option>
<option value="9">Week 9</option>
<option value="10">Week 10</option>
<option value="11">Week 11</option>
<option value="12">Week 12</option>
</select>
</li>
That's how it comes out in the browser. I have echo'd the contents of $_POST and uweek doesn't exist in there. However, uname does!
My actual PHP code that creates the form is as follows:
echo '<h2>Update Users</h2><form action="" method="post">
<ul style="list-style: none;">
<li>
<label for="uname">Select User : </label>
<select id="uname" name="uname">';
while($r = mysqli_fetch_assoc($sql))
{
switch($r['Username'])
{
case 'Mike':
case '3rungohan':
case 'Test':
case 'Jestress':break;
default: echo '<option value="' . $r['UserID'] . '">' . $r['RealName'] . '</option>';
}
}
echo '</select></li>
<li>
<label for="uweek">Week Number : </label>
<select id="uweek" name="uweek">';
for($i=1;$i<13;$i++)
{
$week = "Week " . $i;
echo '<option value="' . $i . '">' . $week . '</option>';
}
echo '</select>
</li>
<li>
<label for="uaims">Week Aims : </label><br />
<textarea id="uaims" name="uaims" rows="4" cols="40" required="required"></textarea>
</li>
<li>
<label for="upros">Week Progress : </label><br />
<textarea id="upros" name="upros" rows="4" cols="40" required="required"></textarea>
</li>
<li>
<label for="unote">Week Notes : </label><br />
<textarea id="unote" name="unote" rows="4" cols="40" required="required" placeholder="If no notes, just enter: No notes"></textarea>
</li>
<li>
<input type="submit" value="Submit" />
</li>
</ul>
</form>';
Results of print_r($_POST);
Array ( [uname] => 3 [uaims] => Aims [upros] => Nope [unote] => No )
Similar results from var_dump($_REQUEST);
array(4) { ["uname"]=> string(1) "3" ["uaims"]=> string(4) "Aims" ["upros"]=> string(4) "Nope" ["unote"]=> string(2) "No" }
Once $_POST executes and goes through, my code (at the top of the php document):
Sorry for the endless queries I needed several rounds of info from different tables.
if(!empty($_POST['uname']))
{
foreach($_POST as $k => $v) {$up[$k] = $v;}
$sql2 = mysqli_query($link, "SELECT * FROM jestresstracker WHERE UserID='" . mysqli_real_escape_string($link, $up['uname']) ."' ORDER BY WeekNum DESC LIMIT 1");
$temp = mysqli_fetch_assoc($sql2);
$sql3 = mysqli_query($link, "SELECT * FROM jestress_users WHERE UserID='" . mysqli_real_escape_string($link, $up['uname']) ."' LIMIT 1");
$r = mysqli_fetch_assoc($sql3);
foreach($r as $k => $v) {$User[$k] = $v;}
if(!empty($temp['WeekNum']))
{
if($up['uweek']<=$temp['WeekNum']) {$result = "Error. Update already set for this week. Week Num: " . $temp['WeekNum'];}
}
else {
$ins = mysqli_query($link, "INSERT INTO jestresstracker (UserID, WeekNum, WeekAims, WeekPro, Updated, UpdatedBy, Notes) VALUES('" . mysqli_real_escape_string($link, $up['uname']) . "', '" . mysqli_real_escape_string($link, $up['uweek']) . "', '" . mysqli_real_escape_string($link, nl2br($up['uaims'])) . "', '" . mysqli_real_escape_string($link, nl2br($up['upros'])) . "', NOW(), '" . mysqli_real_escape_string($link, $res['UserID']) . "', '" . mysqli_real_escape_string($link, nl2br($up['unote'])) . "')");
if($ins) {$result = "Successfully updated " . $User['RealName'] . "'s Week " . $up['uweek'] . " post.";var_dump($_REQUEST);}
else {$result = "Error: " . mysqli_error($link);}
}
}
EDIT: Changing the id/name doesn't return different results.

Answer 1

The best friend here in such situation is firebug or any network analysis tool..
Check the headers and make sure that concerned field is indeed posted through..
I think this may help greatly..

Answer 2

It seems there is something wrong with your php or webserver. Try to create $_POST array yourself using this function:
function decodePost(){
$var = file_get_contents('php://input');
$postContent = explode('&',$var);
for($i = 0; $i < count($postContent); $i++){
$postContent[$i] = urldecode($postContent[$i]);
$map = explode('=', $postContent[$i]);
$post[$map[0]] = $map[1];
}
return $post;
}
And see whether anything changes.

Answer 3

You didn't give all the HTML code with the form and all the fields.
Do you have many of them ? Are they big/long ?
Do you have limitation in your php.ini configuration ? Check post_max_size value.
Do you have suhosin module installed on your server ? (check phpinfo() to be sure).
Suhosin may be tricky sometimes, it logs in system logs (eg. /var/log/syslog) instead of logging in webserver logs (eg. Apache logs).
Try checking these default values in suhosin.ini :
suhosin.post.max_array_depth = 100
suhosin.post.max_array_index_length = 64
suhosin.post.max_name_length = 64
suhosin.post.max_totalname_length = 256
suhosin.post.max_value_length = 1000000
suhosin.post.max_vars = 1000
Also check your HTML code with W3 validator, to be sure everything is correctly formatted. Maybe your browser acts weirdly because of that.
Do you have jQuery onSubmit function or something catching the submit in the Javascript code ?