function check_session($session_id)
{
if ($session_id < 0) {
if (!($session_code = session_code())) {
die('No session code');
}
$query = 'SELECT session_id FROM session WHERE session_code="' . $session_code . '"';
$result = mysql_query($query);
if (!$result) {
$message = 'Invalid query: ' . mysql_error() . "\n";
$message .= 'Whole query: ' . $query;
die($message);
}
if ($row = mysql_fetch_assoc($result)) {
$session_id = $row['session_id'];
} else {
die('Invalid session code');
}
}
return $session_id;
}
<h2 class="sqa">GBPS data entry [ <a href="muga_study.php?session_code=<?php
echo session_code();
?>
">Part 1</a> | <span class="sqasel">Part 2</span> |
<A href="../checked_in.php?session_code=<?php
echo session_code();
?>
">Exit</a> ]</h2>
<SPAN class="sqa">Enter data and click save below.</span>
<form action="muga_data.php?session_code=<?php
echo session_code();
?>
" method="POST">
<FIELDSET class="sqaf">
<LEGEND class="sqaf">Computer System and Software</LEGEND>
<DIV class="sqaf">
<SPAN class="sqaf">Manufacturer: </SPAN>
<?php
$row = update_field('muga_session', 'manufacturer', '/^.*$/', true, 'session_id', $session_id, $row);
?>
<INPUT name="manufacturer" size="24" type="text" value="<?php
echo htmlspecialchars($row['manufacturer']);
?>
" tabindex="" />
<div class="results">
<h3 class="results">Was background subtraction used?</h3>
<?php
$values = array('0' => 'no', '1' => 'yes');
$stats = collection_stats('muga_session', 'background_subtraction_used', $values, false, $collection_id);
$session_stats = session_stats('muga_session', 'background_subtraction_used', $values, false, $session_id);
tabulate_stats($values, $stats, $session_stats);
?>
</div>
<div class="results">
<h3 class="results">What type of smoothing was used (if any)?</h3>
<?php
$values = array('0' => 'No smoothing', '1' => 'Temporal', '2' => 'Spatial', '3' => 'Spatial and Temporal');
$stats = collection_stats('muga_session', 'smoothing_type', $values, false, $collection_id);
$session_stats = session_stats('muga_session', 'smoothing_type', $values, false, $session_id);
tabulate_stats($values, $stats, $session_stats);
?>
</div>
-->
<?php
echo '<h2 class="sqa">[ <A href="../checked_in.php?session_code=' . session_code() . '">Exit</a> ]</h2>';
?>
</body>
</html>