functions.php

	$tpl_temp = trim(ob_get_contents());
	$tpl_redir = str_replace('<pun_footer>', $tpl_temp, $tpl_redir);
	ob_end_clean();
	// END SUBST - <pun_footer>


	// Close the db connection (and free up any result data)
	$db->close();

	pun_exit($tpl_redir);
}


//
// Display a simple error message
//
function error($message, $file, $line, $db_error = false)
{
	global $pun_config;

	// Set a default title if the script failed before $pun_config could be populated
	if (empty($pun_config))
		$pun_config['o_board_title'] = 'PunBB';

	// Empty output buffer and stop buffering
	@ob_end_clean();

	// "Restart" output buffering if we are using ob_gzhandler (since the gzip header is already sent)
	if (!empty($pun_config['o_gzip']) && extension_loaded('zlib') && (strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== false || strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'deflate') !== false))
		ob_start('ob_gzhandler');

?>

<div id="errorbox">
	<h2>An error was encountered</h2>
	<div>
<?php

	if (defined('PUN_DEBUG'))
	{
		echo "\t\t".'<strong>File:</strong> '.$file.'<br />'."\n\t\t".'<strong>Line:</strong> '.$line.'<br /><br />'."\n\t\t".'<strong>PunBB reported</strong>: '.$message."\n";

		if ($db_error)
		{
			echo "\t\t".'<br /><br /><strong>Database reported:</strong> '.pun_htmlspecialchars($db_error['error_msg']).(($db_error['error_no']) ? ' (Errno: '.$db_error['error_no'].')' : '')."\n";

			if ($db_error['error_sql'] != '')
				echo "\t\t".'<br /><br /><strong>Failed query:</strong> '.pun_htmlspecialchars($db_error['error_sql'])."\n";
		}
	}
	else
		echo "\t\t".'Error: <strong>'.$message.'.</strong>'."\n";

?>
	</div>
</div>

<?php

	// If a database connection was established (before this error) we close it
	if ($db_error)
		$GLOBALS['db']->close();

	pun_exit();
}

// DEBUG FUNCTIONS BELOW

//
// Display executed queries (if enabled)
//
function display_saved_queries()
{
	global $db, $lang_common;

	// Get the queries so that we can print them out
	$saved_queries = $db->get_saved_queries();

?>

<div id="debug" class="blocktable">
	<h2><span><?php echo $lang_common['Debug table'] ?></span></h2>
	<div class="box">
		<div class="inbox">
			<table cellspacing="0">
			<thead>
				<tr>
					<th class="tcl" scope="col">Time (s)</th>
					<th class="tcr" scope="col">Query</th>
				</tr>
			</thead>
			<tbody>
<?php

	$query_time_total = 0.0;
	while (list(, $cur_query) = @each($saved_queries))
	{
		$query_time_total += $cur_query[1];

?>
				<tr>
					<td class="tcl"><?php echo ($cur_query[1] != 0) ? $cur_query[1] : '&nbsp;' ?></td>
					<td class="tcr"><?php echo pun_htmlspecialchars($cur_query[0]) ?></td>
				</tr>
<?php

	}

?>
				<tr>
					<td class="tcl" colspan="2">Total query time: <?php echo $query_time_total ?> s</td>
				</tr>
			</tbody>
			</table>
		</div>
	</div>
</div>
<?php

}


//
// Unset any variables instantiated as a result of register_globals being enabled
//
function unregister_globals()
{
	$register_globals = @ini_get('register_globals');
	if ($register_globals === "" || $register_globals === "0" || strtolower($register_globals) === "off")
		return;

	// Prevent script.php?GLOBALS[foo]=bar
	if (isset($_REQUEST['GLOBALS']) || isset($_FILES['GLOBALS']))
		pun_exit('I\'ll have a steak sandwich and... a steak sandwich.');
	
	// Variables that shouldn't be unset
	$no_unset = array('GLOBALS', '_GET', '_POST', '_COOKIE', '_REQUEST', '_SERVER', '_ENV', '_FILES');

	// Remove elements in $GLOBALS that are present in any of the superglobals
	$input = array_merge($_GET, $_POST, $_COOKIE, $_SERVER, $_ENV, $_FILES, isset($_SESSION) && is_array($_SESSION) ? $_SESSION : array());
	foreach ($input as $k => $v)
	{
		if (!in_array($k, $no_unset) && isset($GLOBALS[$k]))
		{
			unset($GLOBALS[$k]);
			unset($GLOBALS[$k]);	// Double unset to circumvent the zend_hash_del_key_or_index hole in PHP <4.4.3 and <5.1.4
		}
	}
}


//
// Dump contents of variable(s)
//
function dump()
{
	echo '<pre>';

	$num_args = func_num_args();

	for ($i = 0; $i < $num_args; ++$i)
	{
		print_r(func_get_arg($i));
		echo "\n\n";
	}

	echo '</pre>';
	pun_exit();
}