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Edit File: functions_compatibility.php

<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/

/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
	exit;
}

/**
* Get user avatar
*
* @deprecated 3.1.0-a1 (To be removed: 4.0.0)
*
* @param string $avatar Users assigned avatar name
* @param int $avatar_type Type of avatar
* @param string $avatar_width Width of users avatar
* @param string $avatar_height Height of users avatar
* @param string $alt Optional language string for alt tag within image, can be a language key or text
* @param bool $ignore_config Ignores the config-setting, to be still able to view the avatar in the UCP
* @param bool $lazy If true, will be lazy loaded (requires JS)
*
* @return string Avatar image
*/
function get_user_avatar($avatar, $avatar_type, $avatar_width, $avatar_height, $alt = 'USER_AVATAR', $ignore_config = false, $lazy = false)
{
	// map arguments to new function phpbb_get_avatar()
	$row = array(
		'avatar'		=> $avatar,
		'avatar_type'	=> $avatar_type,
		'avatar_width'	=> $avatar_width,
		'avatar_height'	=> $avatar_height,
	);

return phpbb_get_avatar($row, $alt, $ignore_config, $lazy);
}

/**
* Hash the password
*
* @deprecated 3.1.0-a2 (To be removed: 4.0.0)
*
* @param string $password Password to be hashed
*
* @return string|bool Password hash or false if something went wrong during hashing
*/
function phpbb_hash($password)
{
	global $phpbb_container;

/* @var $passwords_manager \phpbb\passwords\manager */
	$passwords_manager = $phpbb_container->get('passwords.manager');
	return $passwords_manager->hash($password);
}

/**
* Check for correct password
*
* @deprecated 3.1.0-a2 (To be removed: 4.0.0)
*
* @param string $password The password in plain text
* @param string $hash The stored password hash
*
* @return bool Returns true if the password is correct, false if not.
*/
function phpbb_check_hash($password, $hash)
{
	global $phpbb_container;

/* @var $passwords_manager \phpbb\passwords\manager */
	$passwords_manager = $phpbb_container->get('passwords.manager');
	return $passwords_manager->check($password, $hash);
}

/**
* Eliminates useless . and .. components from specified path.
*
* Deprecated, use filesystem class instead
*
* @param string $path Path to clean
* @return string Cleaned path
*
* @deprecated 3.1.0 (To be removed: 4.0.0)
*/
function phpbb_clean_path($path)
{
	global $phpbb_path_helper, $phpbb_container;

if (!$phpbb_path_helper && $phpbb_container)
	{
		/* @var $phpbb_path_helper \phpbb\path_helper */
		$phpbb_path_helper = $phpbb_container->get('path_helper');
	}
	else if (!$phpbb_path_helper)
	{
		global $phpbb_root_path, $phpEx;

// The container is not yet loaded, use a new instance
		if (!class_exists('\phpbb\path_helper'))
		{
			require($phpbb_root_path . 'phpbb/path_helper.' . $phpEx);
		}

$request = new phpbb\request\request();
		$phpbb_path_helper = new phpbb\path_helper(
			new phpbb\symfony_request(
				$request
			),
			new phpbb\filesystem\filesystem(),
			$request,
			$phpbb_root_path,
			$phpEx
		);
	}

return $phpbb_path_helper->clean_path($path);
}

/**
* Pick a timezone
*
* @param	string		$default			A timezone to select
* @param	boolean		$truncate			Shall we truncate the options text
*
* @return		string		Returns the options for timezone selector only
*
* @deprecated 3.1.0 (To be removed: 4.0.0)
*/
function tz_select($default = '', $truncate = false)
{
	global $template, $user;

return phpbb_timezone_select($template, $user, $default, $truncate);
}

/**
* Cache moderators. Called whenever permissions are changed
* via admin_permissions. Changes of usernames and group names
* must be carried through for the moderators table.
*
* @deprecated 3.1.0 (To be removed: 4.0.0)
* @return null
*/
function cache_moderators()
{
	global $db, $cache, $auth;
	return phpbb_cache_moderators($db, $cache, $auth);
}

/**
* Removes moderators and administrators from foe lists.
*
* @deprecated 3.1.0 (To be removed: 4.0.0)
* @param array|bool $group_id If an array, remove all members of this group from foe lists, or false to ignore
* @param array|bool $user_id If an array, remove this user from foe lists, or false to ignore
* @return null
*/
function update_foes($group_id = false, $user_id = false)
{
	global $db, $auth;
	return phpbb_update_foes($db, $auth, $group_id, $user_id);
}

/**
* Get user rank title and image
*
* @param int $user_rank the current stored users rank id
* @param int $user_posts the users number of posts
* @param string &$rank_title the rank title will be stored here after execution
* @param string &$rank_img the rank image as full img tag is stored here after execution
* @param string &$rank_img_src the rank image source is stored here after execution
*
* @deprecated 3.1.0-RC5 (To be removed: 4.0.0)
*
* Note: since we do not want to break backwards-compatibility, this function will only properly assign ranks to guests if you call it for them with user_posts == false
*/
function get_user_rank($user_rank, $user_posts, &$rank_title, &$rank_img, &$rank_img_src)
{
	global $phpbb_root_path, $phpEx;
	if (!function_exists('phpbb_get_user_rank'))
	{
		include($phpbb_root_path . 'includes/functions_display.' . $phpEx);
	}

$rank_data = phpbb_get_user_rank(array('user_rank' => $user_rank), $user_posts);
	$rank_title = $rank_data['title'];
	$rank_img = $rank_data['img'];
	$rank_img_src = $rank_data['img_src'];
}

/**
 * Retrieve contents from remotely stored file
 *
 * @deprecated	3.1.2	Use file_downloader instead
 */
function get_remote_file($host, $directory, $filename, &$errstr, &$errno, $port = 80, $timeout = 6)
{
	global $phpbb_container;

// Get file downloader and assign $errstr and $errno
	/* @var $file_downloader \phpbb\file_downloader */
	$file_downloader = $phpbb_container->get('file_downloader');

$file_data = $file_downloader->get($host, $directory, $filename, $port, $timeout);
	$errstr = $file_downloader->get_error_string();
	$errno = $file_downloader->get_error_number();

return $file_data;
}

/**
 * Add log entry
 *
 * string	$mode				The mode defines which log_type is used and from which log the entry is retrieved
 * int		$forum_id			Mode 'mod' ONLY: forum id of the related item, NOT INCLUDED otherwise
 * int		$topic_id			Mode 'mod' ONLY: topic id of the related item, NOT INCLUDED otherwise
 * int		$reportee_id		Mode 'user' ONLY: user id of the reportee, NOT INCLUDED otherwise
 * string	$log_operation		Name of the operation
 * array	$additional_data	More arguments can be added, depending on the log_type
 *
 * @return	int|bool		Returns the log_id, if the entry was added to the database, false otherwise.
 *
 * @deprecated	3.1.0 (To be removed: 4.0.0)
 */
function add_log()
{
	global $phpbb_log, $user;

$args = func_get_args();
	$mode = array_shift($args);

// This looks kind of dirty, but add_log has some additional data before the log_operation
	$additional_data = array();
	switch ($mode)
	{
		case 'admin':
		case 'critical':
			break;
		case 'mod':
			$additional_data['forum_id'] = array_shift($args);
			$additional_data['topic_id'] = array_shift($args);
			break;
		case 'user':
			$additional_data['reportee_id'] = array_shift($args);
			break;
	}

$log_operation = array_shift($args);
	$additional_data = array_merge($additional_data, $args);

$user_id = (empty($user->data)) ? ANONYMOUS : $user->data['user_id'];
	$user_ip = (empty($user->ip)) ? '' : $user->ip;

return $phpbb_log->add($mode, $user_id, $user_ip, $log_operation, time(), $additional_data);
}

/**
 * Sets a configuration option's value.
 *
 * Please note that this function does not update the is_dynamic value for
 * an already existing config option.
 *
 * @param string $config_name   The configuration option's name
 * @param string $config_value  New configuration value
 * @param bool   $is_dynamic    Whether this variable should be cached (false) or
 *                              if it changes too frequently (true) to be
 *                              efficiently cached.
 *
 * @return null
 *
 * @deprecated 3.1.0 (To be removed: 4.0.0)
 */
function set_config($config_name, $config_value, $is_dynamic = false, \phpbb\config\config $set_config = null)
{
	static $config = null;

if ($set_config !== null)
	{
		$config = $set_config;

if (empty($config_name))
		{
			return;
		}
	}

$config->set($config_name, $config_value, !$is_dynamic);
}

/**
 * Increments an integer config value directly in the database.
 *
 * @param string $config_name   The configuration option's name
 * @param int    $increment     Amount to increment by
 * @param bool   $is_dynamic    Whether this variable should be cached (false) or
 *                              if it changes too frequently (true) to be
 *                              efficiently cached.
 *
 * @return null
 *
 * @deprecated 3.1.0 (To be removed: 4.0.0)
 */
function set_config_count($config_name, $increment, $is_dynamic = false, \phpbb\config\config $set_config = null)
{
	static $config = null;
	if ($set_config !== null)
	{
		$config = $set_config;
		if (empty($config_name))
		{
			return;
		}
	}
	$config->increment($config_name, $increment, !$is_dynamic);
}

/**
 * Wrapper function of \phpbb\request\request::variable which exists for backwards compatability.
 * See {@link \phpbb\request\request_interface::variable \phpbb\request\request_interface::variable} for
 * documentation of this function's use.
 *
 * @deprecated 3.1.0 (To be removed: 4.0.0)
 * @param	mixed			$var_name	The form variable's name from which data shall be retrieved.
 * 										If the value is an array this may be an array of indizes which will give
 * 										direct access to a value at any depth. E.g. if the value of "var" is array(1 => "a")
 * 										then specifying array("var", 1) as the name will return "a".
 * 										If you pass an instance of {@link \phpbb\request\request_interface phpbb_request_interface}
 * 										as this parameter it will overwrite the current request class instance. If you do
 * 										not do so, it will create its own instance (but leave superglobals enabled).
 * @param	mixed			$default	A default value that is returned if the variable was not set.
 * 										This function will always return a value of the same type as the default.
 * @param	bool			$multibyte	If $default is a string this paramater has to be true if the variable may contain any UTF-8 characters
 *										Default is false, causing all bytes outside the ASCII range (0-127) to be replaced with question marks
 * @param	bool			$cookie		This param is mapped to \phpbb\request\request_interface::COOKIE as the last param for
 * 										\phpbb\request\request_interface::variable for backwards compatability reasons.
 * @param	\phpbb\request\request_interface|null|false	$request
 * 										If an instance of \phpbb\request\request_interface is given the instance is stored in
 *										a static variable and used for all further calls where this parameters is null. Until
 *										the function is called with an instance it automatically creates a new \phpbb\request\request
 *										instance on every call. By passing false this per-call instantiation can be restored
 *										after having passed in a \phpbb\request\request_interface instance.
 *
 * @return	mixed	The value of $_REQUEST[$var_name] run through {@link set_var set_var} to ensure that the type is the
 * 					the same as that of $default. If the variable is not set $default is returned.
 */
function request_var($var_name, $default, $multibyte = false, $cookie = false, $request = null)
{
	// This is all just an ugly hack to add "Dependency Injection" to a function
	// the only real code is the function call which maps this function to a method.
	static $static_request = null;
	if ($request instanceof \phpbb\request\request_interface)
	{
		$static_request = $request;
		if (empty($var_name))
		{
			return;
		}
	}
	else if ($request === false)
	{
		$static_request = null;
		if (empty($var_name))
		{
			return;
		}
	}
	$tmp_request = $static_request;
	// no request class set, create a temporary one ourselves to keep backwards compatibility
	if ($tmp_request === null)
	{
		// false param: enable super globals, so the created request class does not
		// make super globals inaccessible everywhere outside this function.
		$tmp_request = new \phpbb\request\request(new \phpbb\request\type_cast_helper(), false);
	}
	return $tmp_request->variable($var_name, $default, $multibyte, ($cookie) ? \phpbb\request\request_interface::COOKIE : \phpbb\request\request_interface::REQUEST);
}

/**
 * Get tables of a database
 *
 * @deprecated 3.1.0 (To be removed: 4.0.0)
 */
function get_tables($db)
{
	$db_tools_factory = new \phpbb\db\tools\factory();
	$db_tools = $db_tools_factory->get($db);

return $db_tools->sql_list_tables();
}

/**
 * Global function for chmodding directories and files for internal use
 *
 * This function determines owner and group whom the file belongs to and user and group of PHP and then set safest possible file permissions.
 * The function determines owner and group from common.php file and sets the same to the provided file.
 * The function uses bit fields to build the permissions.
 * The function sets the appropiate execute bit on directories.
 *
 * Supported constants representing bit fields are:
 *
 * CHMOD_ALL - all permissions (7)
 * CHMOD_READ - read permission (4)
 * CHMOD_WRITE - write permission (2)
 * CHMOD_EXECUTE - execute permission (1)
 *
 * NOTE: The function uses POSIX extension and fileowner()/filegroup() functions. If any of them is disabled, this function tries to build proper permissions, by calling is_readable() and is_writable() functions.
 *
 * @param string	$filename	The file/directory to be chmodded
 * @param int	$perms		Permissions to set
 *
 * @return bool	true on success, otherwise false
 *
 * @deprecated 3.2.0-dev	use \phpbb\filesystem\filesystem::phpbb_chmod() instead
 */
function phpbb_chmod($filename, $perms = CHMOD_READ)
{
	global $phpbb_filesystem;

try
	{
		$phpbb_filesystem->phpbb_chmod($filename, $perms);
	}
	catch (\phpbb\filesystem\exception\filesystem_exception $e)
	{
		return false;
	}

return true;
}

/**
 * Test if a file/directory is writable
 *
 * This function calls the native is_writable() when not running under
 * Windows and it is not disabled.
 *
 * @param string $file Path to perform write test on
 * @return bool True when the path is writable, otherwise false.
 *
 * @deprecated 3.2.0-dev	use \phpbb\filesystem\filesystem::is_writable() instead
 */
function phpbb_is_writable($file)
{
	global $phpbb_filesystem;

return $phpbb_filesystem->is_writable($file);
}

/**
 * Checks if a path ($path) is absolute or relative
 *
 * @param string $path Path to check absoluteness of
 * @return boolean
 *
 * @deprecated 3.2.0-dev	use \phpbb\filesystem\filesystem::is_absolute_path() instead
 */
function phpbb_is_absolute($path)
{
	global $phpbb_filesystem;

return $phpbb_filesystem->is_absolute_path($path);
}

/**
 * A wrapper for realpath
 *
 * @deprecated 3.2.0-dev	use \phpbb\filesystem\filesystem::realpath() instead
 */
function phpbb_realpath($path)
{
	global $phpbb_filesystem;

return $phpbb_filesystem->realpath($path);
}

/**
 * Determine which plural form we should use.
 * For some languages this is not as simple as for English.
 *
 * @param	int			$rule	ID of the plural rule we want to use, see https://area51.phpbb.com/docs/dev/3.3.x/language/plurals.html
 * @param	int|float	$number	The number we want to get the plural case for. Float numbers are floored.
 * @return	int		The plural-case we need to use for the number plural-rule combination
 *
 * @deprecated 3.2.0-dev (To be removed: 4.0.0)
 */
function phpbb_get_plural_form($rule, $number)
{
	global $phpbb_container;

/** @var \phpbb\language\language $language */
	$language = $phpbb_container->get('language');
	return $language->get_plural_form($number, $rule);
}

/**
* @return bool Always true
* @deprecated 3.2.0-dev
*/
function phpbb_pcre_utf8_support()
{
	return true;
}

/**
 * Casts a variable to the given type.
 *
 * @deprecated 3.1 (To be removed 4.0.0)
 */
function set_var(&$result, $var, $type, $multibyte = false)
{
	// no need for dependency injection here, if you have the object, call the method yourself!
	$type_cast_helper = new \phpbb\request\type_cast_helper();
	$type_cast_helper->set_var($result, $var, $type, $multibyte);
}

/**
 * Delete Attachments
 *
 * @deprecated 3.2.0-a1 (To be removed: 4.0.0)
 *
 * @param string $mode can be: post|message|topic|attach|user
 * @param mixed $ids can be: post_ids, message_ids, topic_ids, attach_ids, user_ids
 * @param bool $resync set this to false if you are deleting posts or topics
 */
function delete_attachments($mode, $ids, $resync = true)
{
	global $phpbb_container;

/** @var \phpbb\attachment\manager $attachment_manager */
	$attachment_manager = $phpbb_container->get('attachment.manager');
	$num_deleted = $attachment_manager->delete($mode, $ids, $resync);

unset($attachment_manager);

return $num_deleted;
}

/**
 * Delete attached file
 *
 * @deprecated 3.2.0-a1 (To be removed: 4.0.0)
 */
function phpbb_unlink($filename, $mode = 'file', $entry_removed = false)
{
	global $phpbb_container;

/** @var \phpbb\attachment\manager $attachment_manager */
	$attachment_manager = $phpbb_container->get('attachment.manager');
	$unlink = $attachment_manager->unlink($filename, $mode, $entry_removed);
	unset($attachment_manager);

return $unlink;
}

/**
 * Display reasons
 *
 * @deprecated 3.2.0-dev (To be removed: 4.0.0)
 */
function display_reasons($reason_id = 0)
{
	global $phpbb_container;

$phpbb_container->get('phpbb.report.report_reason_list_provider')->display_reasons($reason_id);
}

/**
 * Upload Attachment - filedata is generated here
 * Uses upload class
 *
 * @deprecated 3.2.0-a1 (To be removed: 4.0.0)
 *
 * @param string			$form_name		The form name of the file upload input
 * @param int			$forum_id		The id of the forum
 * @param bool			$local			Whether the file is local or not
 * @param string			$local_storage	The path to the local file
 * @param bool			$is_message		Whether it is a PM or not
 * @param array			$local_filedata	A filespec object created for the local file
 *
 * @return array File data array
 */
function upload_attachment($form_name, $forum_id, $local = false, $local_storage = '', $is_message = false, $local_filedata = false)
{
	global $phpbb_container;

/** @var \phpbb\attachment\manager $attachment_manager */
	$attachment_manager = $phpbb_container->get('attachment.manager');
	$file = $attachment_manager->upload($form_name, $forum_id, $local, $local_storage, $is_message, $local_filedata);
	unset($attachment_manager);

return $file;
}

/**
* Wrapper for php's checkdnsrr function.
*
* @param string $host	Fully-Qualified Domain Name
* @param string $type	Resource record type to lookup
*						Supported types are: MX (default), A, AAAA, NS, TXT, CNAME
*						Other types may work or may not work
*
* @return mixed		true if entry found,
*					false if entry not found,
*					null if this function is not supported by this environment
*
* Since null can also be returned, you probably want to compare the result
* with === true or === false,
*
* @deprecated 3.3.0-b2 (To be removed: 4.0.0)
*/
function phpbb_checkdnsrr($host, $type = 'MX')
{
	return checkdnsrr($host, $type);
}

/*
 * Wrapper for inet_ntop()
 *
 * Converts a packed internet address to a human readable representation
 * inet_ntop() is supported by PHP since 5.1.0, since 5.3.0 also on Windows.
 *
 * @param string $in_addr	A 32bit IPv4, or 128bit IPv6 address.
 *
 * @return mixed		false on failure,
 *					string otherwise
  *
 * @deprecated 3.3.0-b2 (To be removed: 4.0.0)
 */
function phpbb_inet_ntop($in_addr)
{
	return inet_ntop($in_addr);
}

/**
 * Wrapper for inet_pton()
 *
 * Converts a human readable IP address to its packed in_addr representation
 * inet_pton() is supported by PHP since 5.1.0, since 5.3.0 also on Windows.
 *
 * @param string $address	A human readable IPv4 or IPv6 address.
 *
 * @return mixed		false if address is invalid,
 *					in_addr representation of the given address otherwise (string)
 *
 * @deprecated 3.3.0-b2 (To be removed: 4.0.0)
 */
function phpbb_inet_pton($address)
{
	return inet_pton($address);
}

/**
 * Hashes an email address to a big integer
 *
 * @param string $email		Email address
 *
 * @return string			Unsigned Big Integer
 *
 * @deprecated 3.3.0-b2 (To be removed: 4.0.0)
 */
function phpbb_email_hash($email)
{
	return sprintf('%u', crc32(strtolower($email))) . strlen($email);
}

/**
 * Load the autoloaders added by the extensions.
 *
 * @param string $phpbb_root_path Path to the phpbb root directory.
 */
function phpbb_load_extensions_autoloaders($phpbb_root_path)
{
	$iterator = new \RecursiveIteratorIterator(
		new \phpbb\recursive_dot_prefix_filter_iterator(
			new \RecursiveDirectoryIterator(
				$phpbb_root_path . 'ext/',
				\FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS
			)
		),
		\RecursiveIteratorIterator::SELF_FIRST
	);
	$iterator->setMaxDepth(2);

foreach ($iterator as $file_info)
	{
		if ($file_info->getFilename() === 'vendor' && $iterator->getDepth() === 2)
		{
			$filename = $file_info->getRealPath() . '/autoload.php';
			if (file_exists($filename))
			{
				require $filename;
			}
		}
	}
}

/**
* Login using http authenticate.
*
* @param array	$param		Parameter array, see $param_defaults array.
*
* @return null
*
* @deprecated 3.2.10 (To be removed 4.0.0)
*/
function phpbb_http_login($param)
{
	global $auth, $user, $request;
	global $config;

$param_defaults = array(
		'auth_message'	=> '',

'autologin'		=> false,
		'viewonline'	=> true,
		'admin'			=> false,
	);

// Overwrite default values with passed values
	$param = array_merge($param_defaults, $param);

// User is already logged in
	// We will not overwrite his session
	if (!empty($user->data['is_registered']))
	{
		return;
	}

// $_SERVER keys to check
	$username_keys = array(
		'PHP_AUTH_USER',
		'Authorization',
		'REMOTE_USER', 'REDIRECT_REMOTE_USER',
		'HTTP_AUTHORIZATION', 'REDIRECT_HTTP_AUTHORIZATION',
		'REMOTE_AUTHORIZATION', 'REDIRECT_REMOTE_AUTHORIZATION',
		'AUTH_USER',
	);

$password_keys = array(
		'PHP_AUTH_PW',
		'REMOTE_PASSWORD',
		'AUTH_PASSWORD',
	);

$username = null;
	foreach ($username_keys as $k)
	{
		if ($request->is_set($k, \phpbb\request\request_interface::SERVER))
		{
			$username = html_entity_decode($request->server($k), ENT_COMPAT);
			break;
		}
	}

$password = null;
	foreach ($password_keys as $k)
	{
		if ($request->is_set($k, \phpbb\request\request_interface::SERVER))
		{
			$password = html_entity_decode($request->server($k), ENT_COMPAT);
			break;
		}
	}

// Decode encoded information (IIS, CGI, FastCGI etc.)
	if (!is_null($username) && is_null($password) && strpos($username, 'Basic ') === 0)
	{
		list($username, $password) = explode(':', base64_decode(substr($username, 6)), 2);
	}

if (!is_null($username) && !is_null($password))
	{
		set_var($username, $username, 'string', true);
		set_var($password, $password, 'string', true);

$auth_result = $auth->login($username, $password, $param['autologin'], $param['viewonline'], $param['admin']);

if ($auth_result['status'] == LOGIN_SUCCESS)
		{
			return;
		}
		else if ($auth_result['status'] == LOGIN_ERROR_ATTEMPTS)
		{
			send_status_line(401, 'Unauthorized');

trigger_error('NOT_AUTHORISED');
		}
	}

// Prepend sitename to auth_message
	$param['auth_message'] = ($param['auth_message'] === '') ? $config['sitename'] : $config['sitename'] . ' - ' . $param['auth_message'];

// We should probably filter out non-ASCII characters - RFC2616
	$param['auth_message'] = preg_replace('/[\x80-\xFF]/', '?', $param['auth_message']);

header('WWW-Authenticate: Basic realm="' . $param['auth_message'] . '"');
	send_status_line(401, 'Unauthorized');

trigger_error('NOT_AUTHORISED');
}

/**
* Converts query string (GET) parameters in request into hidden fields.
*
* Useful for forwarding GET parameters when submitting forms with GET method.
*
* It is possible to omit some of the GET parameters, which is useful if
* they are specified in the form being submitted.
*
* sid is always omitted.
*
* @param \phpbb\request\request $request Request object
* @param array $exclude A list of variable names that should not be forwarded
* @return string HTML with hidden fields
*
* @deprecated 3.2.10 (To be removed 4.0.0)
*/
function phpbb_build_hidden_fields_for_query_params($request, $exclude = null)
{
	$names = $request->variable_names(\phpbb\request\request_interface::GET);
	$hidden = '';
	foreach ($names as $name)
	{
		// Sessions are dealt with elsewhere, omit sid always
		if ($name == 'sid')
		{
			continue;
		}

// Omit any additional parameters requested
		if (!empty($exclude) && in_array($name, $exclude))
		{
			continue;
		}

$escaped_name = phpbb_quoteattr($name);

// Note: we might retrieve the variable from POST or cookies
		// here. To avoid exposing cookies, skip variables that are
		// overwritten somewhere other than GET entirely.
		$value = $request->variable($name, '', true);
		$get_value = $request->variable($name, '', true, \phpbb\request\request_interface::GET);
		if ($value === $get_value)
		{
			$escaped_value = phpbb_quoteattr($value);
			$hidden .= "<input type='hidden' name=$escaped_name value=$escaped_value />";
		}
	}
	return $hidden;
}

/**
* Delete all PM(s) for a given user and delete the ones without references
*
* @param	int		$user_id	ID of the user whose private messages we want to delete
*
* @return	boolean		False if there were no pms found, true otherwise.
*
* @deprecated 3.2.10 (To be removed 4.0.0)
*/
function phpbb_delete_user_pms($user_id)
{
	$user_id = (int) $user_id;

if (!$user_id)
	{
		return false;
	}

return phpbb_delete_users_pms(array($user_id));
}