3 files changed, 233 insertions, 246 deletions
diff --git a/phpBB/includes/db/db2.php b/phpBB/includes/db/db2.php
index 8a5ce0103d..df03d047c3 100644
--- a/phpBB/includes/db/db2.php
+++ b/phpBB/includes/db/db2.php
@@ -1,10 +1,10 @@
 <?php
-/** 
+/**
 *
 * @package dbal
 * @version $Id$
-* @copyright (c) 2005 phpBB Group 
-* @license http://opensource.org/licenses/gpl-license.php GNU Public License 
+* @copyright (c) 2005 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
 *
 */
 
@@ -16,277 +16,261 @@ if (!defined('IN_PHPBB'))
 	exit;
 }
 
-include_once(PHPBB_ROOT_PATH . 'includes/db/dbal.' . PHP_EXT);
-
 /**
 * MSSQL Database Abstraction Layer
-* Minimum Requirement is DB2 8.2.2
+* Minimum Requirement: DB2 8.2.2+
+* Minimum extension version: PECL ibm_db2 1.6.0+
 * @package dbal
 */
-class dbal_db2 extends dbal
+class phpbb_dbal_db2 extends phpbb_dbal
 {
-	var $multi_insert = true;
+	/**
+	* @var string Database type. No distinction between versions or used extensions.
+	*/
+	public $dbms_type = 'db2';
 
-	// can't truncate a table
-	var $truncate = false;
+	/**
+	* @var array Database type map, column layout information
+	*/
+	public $dbms_type_map = array(
+		'INT:'		=> 'integer',
+		'BINT'		=> 'float',
+		'UINT'		=> 'integer',
+		'UINT:'		=> 'integer',
+		'TINT:'		=> 'smallint',
+		'USINT'		=> 'smallint',
+		'BOOL'		=> 'smallint',
+		'VCHAR'		=> 'varchar(255)',
+		'VCHAR:'	=> 'varchar(%d)',
+		'CHAR:'		=> 'char(%d)',
+		'XSTEXT'	=> 'clob(65K)',
+		'STEXT'		=> 'varchar(3000)',
+		'TEXT'		=> 'clob(65K)',
+		'MTEXT'		=> 'clob(16M)',
+		'XSTEXT_UNI'=> 'varchar(100)',
+		'STEXT_UNI'	=> 'varchar(255)',
+		'TEXT_UNI'	=> 'clob(65K)',
+		'MTEXT_UNI'	=> 'clob(16M)',
+		'TIMESTAMP'	=> 'integer',
+		'DECIMAL'	=> 'float',
+		'VCHAR_UNI'	=> 'varchar(255)',
+		'VCHAR_UNI:'=> 'varchar(%d)',
+		'VARBINARY'	=> 'varchar(255)',
+	);
 
-	var $dbms_type = 'db2';
+	/**
+	* @var array Database features
+	*/
+	public $features = array(
+		'multi_insert'			=> true,
+		'count_distinct'		=> true,
+		'multi_table_deletion'	=> true,
+		'truncate'				=> false,
+	);
 
 	/**
-	* Connect to server
+	* Connect to server. See {@link phpbb_dbal::sql_connect() sql_connect()} for details.
 	*/
-	function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $port = false, $persistency = false, $new_link = false)
+	public function sql_connect($server, $user, $password, $database, $port = false, $persistency = false , $new_link = false)
 	{
 		$this->persistency = $persistency;
-		$this->user = $sqluser;
-		$this->server = $sqlserver . (($port) ? ':' . $port : '');
+		$this->user = $user;
+		$this->server = $server . (($port) ? ':' . $port : '');
 		$this->dbname = $database;
+		$this->port = $port;
 
-		$this->db_connect_id = ($this->persistency) ? @db2_pconnect($this->dbname, $this->user, $sqlpassword, array('autocommit' => DB2_AUTOCOMMIT_ON, 'DB2_ATTR_CASE' => DB2_CASE_LOWER)) : @db2_connect($this->dbname, $this->user, $sqlpassword, array('autocommit' => DB2_AUTOCOMMIT_ON, 'DB2_ATTR_CASE' => DB2_CASE_LOWER));
+		$this->db_connect_id = ($this->persistency) ? @db2_pconnect($this->dbname, $this->user, $password, array('autocommit' => DB2_AUTOCOMMIT_ON, 'DB2_ATTR_CASE' => DB2_CASE_LOWER)) : @db2_connect($this->dbname, $this->user, $password, array('autocommit' => DB2_AUTOCOMMIT_ON, 'DB2_ATTR_CASE' => DB2_CASE_LOWER));
 
 		return ($this->db_connect_id) ? $this->db_connect_id : $this->sql_error('');
 	}
 
 	/**
-	* Version information about used database
+	* Version information about used database. See {@link phpbb_dbal::sql_server_info() sql_server_info()} for details.
 	*/
-	function sql_server_info()
+	public function sql_server_info($raw = false)
 	{
-		$info = db2_server_info($this->db_connect_id);
-		return $info->DBMS_VER;
-	}
-
-	/**
-	* SQL Transaction
-	* @access private
-	*/
-	function _sql_transaction($status = 'begin')
-	{
-		switch ($status)
+		if (!phpbb::registered('acm') || ($this->sql_server_version = phpbb::$acm->get('#db2_version')) === false)
 		{
-			case 'begin':
-				return @db2_autocommit($this->db_connect_id, DB2_AUTOCOMMIT_OFF);
-			break;
+			$info = @db2_server_info($this->db_connect_id);
 
-			case 'commit':
-				$result = @db2_commit($this->db_connect_id);
-				@db2_autocommit($this->db_connect_id, DB2_AUTOCOMMIT_ON);
-				return $result;
-			break;
+			$this->sql_server_info = is_object($info) ? $info->DBMS_VER : 0;
 
-			case 'rollback':
-				$result = @db2_rollback($this->db_connect_id);
-				@db2_autocommit($this->db_connect_id, DB2_AUTOCOMMIT_ON);
-				return $result;
-			break;
+			if (phpbb::registered('acm'))
+			{
+				phpbb::$acm->put('#db2_version', $this->sql_server_version);
+			}
 		}
 
-		return true;
+		return ($raw) ? $this->sql_server_version : 'IBM DB2 ' . $this->sql_server_version;
 	}
 
 	/**
-	* Base query method
-	*
-	* @param	string	$query		Contains the SQL query which shall be executed
-	* @param	int		$cache_ttl	Either 0 to avoid caching or the time in seconds which the result shall be kept in cache
-	* @return	mixed				When casted to bool the returned value returns true on success and false on failure
-	*
-	* @access	public
+	* DB-specific base query method. See {@link phpbb_dbal::_sql_query() _sql_query()} for details.
 	*/
-	function sql_query($query = '', $cache_ttl = 0)
+	protected function _sql_query($query)
 	{
-		if ($query != '')
-		{
-			global $cache;
-
-			// EXPLAIN only in extra debug mode
-			if (defined('DEBUG_EXTRA'))
-			{
-				$this->sql_report('start', $query);
-			}
+		$array = array();
 
-			$this->query_result = ($cache_ttl && method_exists($cache, 'sql_load')) ? $cache->sql_load($query) : false;
-			$this->sql_add_num_queries($this->query_result);
-
-			if ($this->query_result === false)
+		// Cope with queries larger than 32K
+		if (strlen($query) > 32740)
+		{
+			if (preg_match('/^(INSERT INTO[^(]++)\\(([^()]+)\\) VALUES[^(]++\\((.*?)\\)$/s', $query, $regs))
 			{
-				$array = array();
-				if (strlen($query) > 32740)
+				if (strlen($regs[3]) > 32740)
 				{
-					if (preg_match('/^(INSERT INTO[^(]++)\\(([^()]+)\\) VALUES[^(]++\\((.*?)\\)$/s', $query, $regs))
-					{
-						if (strlen($regs[3]) > 32740)
-						{
-							preg_match_all('/\'(?:[^\']++|\'\')*+\'|[\d-.]+/', $regs[3], $vals, PREG_PATTERN_ORDER);
+					preg_match_all('/\'(?:[^\']++|\'\')*+\'|[\d-.]+/', $regs[3], $vals, PREG_PATTERN_ORDER);
 
-							$inserts = $vals[0];
-							unset($vals);
+					$inserts = $vals[0];
+					unset($vals);
 
-							foreach ($inserts as $key => $value)
-							{
-								if (!empty($value) && $value[0] === "'" && strlen($value) > 32742) // check to see if this thing is greater than the max + 'x2
-								{
-									$inserts[$key] = '?';
-									$array[] = str_replace("''", "'", substr($value, 1, -1));
-								}
-							}
-
-							$query = $regs[1] . '(' . $regs[2] . ') VALUES (' . implode(', ', $inserts) . ')';
-						}
-					}
-					else if (preg_match_all('/^(UPDATE ([\\w_]++)\\s+SET )([\\w_]++\\s*=\\s*(?:\'(?:[^\']++|\'\')*+\'|[\d-.]+)(?:,\\s*[\\w_]++\\s*=\\s*(?:\'(?:[^\']++|\'\')*+\'|[\d-.]+))*+)\\s+(WHERE.*)$/s', $query, $data, PREG_SET_ORDER))
+					foreach ($inserts as $key => $value)
 					{
-						if (strlen($data[0][3]) > 32740)
+						// check to see if this thing is greater than the max + 'x2
+						if (!empty($value) && $value[0] === "'" && strlen($value) > 32742)
 						{
-							$update = $data[0][1];
-							$where = $data[0][4];
-							preg_match_all('/(\\w++) = (\'(?:[^\']++|\'\')*+\'|\\d++)/', $data[0][3], $temp, PREG_SET_ORDER);
-							unset($data);
-
-							$cols = array();
-							foreach ($temp as $value)
-							{
-								if (!empty($value[2]) && $value[2][0] === "'" && strlen($value[2]) > 32742) // check to see if this thing is greater than the max + 'x2
-								{
-									$array[] = str_replace("''", "'", substr($value[2], 1, -1));
-									$cols[] = $value[1] . '=?';
-								}
-								else
-								{
-									$cols[] = $value[1] . '=' . $value[2];
-								}
-							}
-
-							$query = $update . implode(', ', $cols) . ' ' . $where;
-							unset($cols);
+							$inserts[$key] = '?';
+							$array[] = str_replace("''", "'", substr($value, 1, -1));
 						}
 					}
-				}
-
-				if (sizeof($array))
-				{
-					if (($this->query_result = @db2_prepare($this->db_connect_id, $query)) === false)
-					{
-						$this->sql_error($query);
-					}
 
-					if (!@db2_execute($this->query_result, $array))
-					{
-						$this->sql_error($query);
-					}
+					$query = $regs[1] . '(' . $regs[2] . ') VALUES (' . implode(', ', $inserts) . ')';
 				}
-				else
+			}
+			else if (preg_match_all('/^(UPDATE ([\\w_]++)\\s+SET )([\\w_]++\\s*=\\s*(?:\'(?:[^\']++|\'\')*+\'|[\d-.]+)(?:,\\s*[\\w_]++\\s*=\\s*(?:\'(?:[^\']++|\'\')*+\'|[\d-.]+))*+)\\s+(WHERE.*)$/s', $query, $data, PREG_SET_ORDER))
+			{
+				if (strlen($data[0][3]) > 32740)
 				{
-					if (($this->query_result = @db2_exec($this->db_connect_id, $query)) === false)
+					$update = $data[0][1];
+					$where = $data[0][4];
+					preg_match_all('/(\\w++) = (\'(?:[^\']++|\'\')*+\'|\\d++)/', $data[0][3], $temp, PREG_SET_ORDER);
+					unset($data);
+
+					$cols = array();
+					foreach ($temp as $value)
 					{
-						$this->sql_error($query);
+						// check to see if this thing is greater than the max + 'x2
+						if (!empty($value[2]) && $value[2][0] === "'" && strlen($value[2]) > 32742)
+						{
+							$array[] = str_replace("''", "'", substr($value[2], 1, -1));
+							$cols[] = $value[1] . '=?';
+						}
+						else
+						{
+							$cols[] = $value[1] . '=' . $value[2];
+						}
 					}
-				}
 
-				if (defined('DEBUG_EXTRA'))
-				{
-					$this->sql_report('stop', $query);
+					$query = $update . implode(', ', $cols) . ' ' . $where;
+					unset($cols);
 				}
+			}
+		}
 
-				if ($cache_ttl && method_exists($cache, 'sql_save'))
-				{
-					$this->open_queries[(int) $this->query_result] = $this->query_result;
-					$cache->sql_save($query, $this->query_result, $cache_ttl);
-				}
-				else if (strpos($query, 'SELECT') === 0 && $this->query_result)
-				{
-					$this->open_queries[(int) $this->query_result] = $this->query_result;
-				}
+		if (sizeof($array))
+		{
+			$result = @db2_prepare($this->db_connect_id, $query);
+
+			if (!$result)
+			{
+				return false;
 			}
-			else if (defined('DEBUG_EXTRA'))
+
+			if (!@db2_execute($result, $array))
 			{
-				$this->sql_report('fromcache', $query);
+				return false;
 			}
 		}
 		else
 		{
-			return false;
+			$result = @db2_exec($this->db_connect_id, $query);
 		}
 
-		return ($this->query_result) ? $this->query_result : false;
+		return $result;
 	}
 
 	/**
-	* Build LIMIT query
+	* Build LIMIT query and run it. See {@link phpbb_dbal::_sql_query_limit() _sql_query_limit()} for details.
 	*/
-	function sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0) 
+	protected function _sql_query_limit($query, $total, $offset, $cache_ttl)
 	{
-		if ($query != '')
+		if ($total && $offset == 0)
 		{
-			$this->query_result = false;
-
-			if ($total && $offset == 0)
-			{
-				return $this->sql_query($query . ' fetch first ' . $total . ' rows only', $cache_ttl);
-			}
-
-
-			// Seek by $offset rows
-			if ($offset)
-			{
-				$limit_sql = 'SELECT a2.*
-					FROM (
-						SELECT ROW_NUMBER() OVER() AS rownum, a1.*
-							FROM (
-								' . $query . '
-							) a1
-					) a2
-				WHERE a2.rownum BETWEEN ' . ($offset + 1) . ' AND ' . ($offset + $total);
-				return $this->sql_query($limit_sql, $cache_ttl);
-			}
+			return $this->sql_query($query . ' fetch first ' . $total . ' rows only', $cache_ttl);
 		}
-		else
+
+		// Seek by $offset rows
+		if ($offset)
 		{
-			return false;
+			$limit_sql = 'SELECT a2.*
+				FROM (
+					SELECT ROW_NUMBER() OVER() AS rownum, a1.*
+						FROM (
+							' . $query . '
+						) a1
+				) a2
+			WHERE a2.rownum BETWEEN ' . ($offset + 1) . ' AND ' . ($offset + $total);
+
+			return $this->sql_query($limit_sql, $cache_ttl);
 		}
+
+		return $this->sql_query($query, $cache_ttl);
 	}
 
 	/**
-	* Return number of affected rows
+	* Close sql connection. See {@link phpbb_dbal::_sql_close() _sql_close()} for details.
 	*/
-	function sql_affectedrows()
+	protected function _sql_close()
 	{
-		return ($this->db_connect_id) ? @db2_num_rows($this->db_connect_id) : false;
+		return @db2_close($this->db_connect_id);
 	}
 
 	/**
-	* Fetch current row
+	* SQL Transaction. See {@link phpbb_dbal::_sql_transaction() _sql_transaction()} for details.
 	*/
-	function sql_fetchrow($query_id = false)
+	protected function _sql_transaction($status)
 	{
-		global $cache;
-
-		if ($query_id === false)
+		switch ($status)
 		{
-			$query_id = $this->query_result;
-		}
+			case 'begin':
+				return @db2_autocommit($this->db_connect_id, DB2_AUTOCOMMIT_OFF);
+			break;
 
-		if (isset($cache->sql_rowset[$query_id]))
-		{
-			return $cache->sql_fetchrow($query_id);
-		}
+			case 'commit':
+				$result = @db2_commit($this->db_connect_id);
+				@db2_autocommit($this->db_connect_id, DB2_AUTOCOMMIT_ON);
+				return $result;
+			break;
 
-		if ($query_id === false)
-		{
-			return false;
+			case 'rollback':
+				$result = @db2_rollback($this->db_connect_id);
+				@db2_autocommit($this->db_connect_id, DB2_AUTOCOMMIT_ON);
+				return $result;
+			break;
 		}
 
-		$row = @db2_fetch_assoc($query_id);
+		return true;
+	}
 
-		return $row;
+	/**
+	* Return number of affected rows. See {@link phpbb_dbal::sql_affectedrows() sql_affectedrows()} for details.
+	*/
+	public function sql_affectedrows()
+	{
+		return ($this->db_connect_id) ? @db2_num_rows($this->db_connect_id) : false;
 	}
 
 	/**
-	* Get last inserted id after insert statement
+	* Get last inserted id after insert statement. See {@link phpbb_dbal::sql_nextid() sql_nextid()} for details.
 	*/
-	function sql_nextid()
+	public function sql_nextid()
 	{
+		if (function_exists('db2_last_insert_id')
+		{
+			return @db2_last_insert_id($this->db_connect_id);
+		}
+
 		$result_id = @db2_exec($this->db_connect_id, 'VALUES IDENTITY_VAL_LOCAL()');
+
 		if ($result_id)
 		{
 			if ($row = @db2_fetch_assoc($result_id))
@@ -301,57 +285,54 @@ class dbal_db2 extends dbal
 	}
 
 	/**
-	* Free sql result
+	* Fetch current row. See {@link phpbb_dbal::_sql_fetchrow() _sql_fetchrow()} for details.
 	*/
-	function sql_freeresult($query_id = false)
+	protected function _sql_fetchrow($query_id)
 	{
-		global $cache;
-
-		if ($query_id === false)
-		{
-			$query_id = $this->query_result;
-		}
-
-		if (isset($cache->sql_rowset[$query_id]))
-		{
-			return $cache->sql_freeresult($query_id);
-		}
+		return @db2_fetch_assoc($query_id);
+	}
 
-		if (isset($this->open_queries[$query_id]))
-		{
-			unset($this->open_queries[$query_id]);
-			return @db2_free_result($query_id);
-		}
+	/**
+	* Free query result. See {@link phpbb_dbal::_sql_freeresult() _sql_freeresult()} for details.
+	*/
+	protected function _sql_freeresult($query_id)
+	{
+		return @db2_free_result($query_id);
+	}
 
-		return false;
+	/**
+	* Correctly adjust LIKE expression for special characters. See {@link phpbb_dbal::_sql_like_expression() _sql_like_expression()} for details.
+	*/
+	protected function _sql_like_expression($expression)
+	{
+		return $expression . " ESCAPE '\\'";
 	}
 
 	/**
-	* Escape string used in sql query
+	* Escape string used in sql query. See {@link phpbb_dbal::sql_escape() sql_escape()} for details.
 	*/
-	function sql_escape($msg)
+	public function sql_escape($msg)
 	{
-		return str_replace("'", "''", $msg);
+		return @db2_escape_string($msg);
 	}
 
 	/**
-	* Expose a DBMS specific function
+	* Expose a DBMS specific function. See {@link phpbb_dbal::sql_function() sql_function()} for details.
 	*/
-	function sql_function($type, $col)
+	public function sql_function($type, $col)
 	{
 		switch ($type)
 		{
 			case 'length_varchar':
-				return 'LENGTH(' . $col . ')';
-			break;
-
 			case 'length_text':
 				return 'LENGTH(' . $col . ')';
 			break;
 		}
 	}
 
-	function sql_handle_data($type, $table, $data, $where = '')
+	/**
+	* Handle data by using prepared statements. See {@link phpbb_dbal::sql_handle_data() sql_handle_data()} for details.
+	public function sql_handle_data($type, $table, $data, $where = '')
 	{
 		if ($type == 'INSERT')
 		{
@@ -381,52 +362,42 @@ class dbal_db2 extends dbal
 
 		call_user_func_array('db2_execute', $data);
 	}
+	*/
 
 	/**
-	* Build LIKE expression
-	* @access private
+	* Build DB-specific query bits. See {@link phpbb_dbal::_sql_custom_build() _sql_custom_build()} for details.
 	*/
-	function _sql_like_expression($expression)
+	protected function _sql_custom_build($stage, $data)
 	{
-		return $expression . " ESCAPE '\\'";
+		return $data;
 	}
 
 	/**
-	* return sql error array
-	* @access private
+	* return sql error array. See {@link phpbb_dbal::_sql_error() _sql_error()} for details.
 	*/
-	function _sql_error()
+	protected function _sql_error()
 	{
+		$message = @db2_stmt_errormsg();
+		$code = @db2_stmt_error();
+
+		if (!$message && !$code)
+		{
+			$message = @db2_conn_errormsg();
+			$code = @db2_conn_error();
+		}
+
 		$error = array(
-			'message'	=> @db2_stmt_errormsg(),
-			'code'		=> @db2_stmt_error()
+			'message'	=> $message,
+			'code'		=> $code,
 		);
-		return $error;
-	}
-
-	/**
-	* Build db-specific query data
-	* @access private
-	*/
-	function _sql_custom_build($stage, $data)
-	{
-		return $data;
-	}
 
-	/**
-	* Close sql connection
-	* @access private
-	*/
-	function _sql_close()
-	{
-		return @db2_close($this->db_connect_id);
+		return $error;
 	}
 
 	/**
-	* Build db-specific report
-	* @access private
+	* Run DB-specific code to build SQL Report to explain queries, show statistics and runtime information. See {@link phpbb_dbal::_sql_report() _sql_report()} for details.
 	*/
-	function _sql_report($mode, $query = '')
+	protected function _sql_report($mode, $query = '')
 	{
 		switch ($mode)
 		{
diff --git a/phpBB/includes/functions_install.php b/phpBB/includes/functions_install.php
index 53be92ac14..630bb78a71 100644
--- a/phpBB/includes/functions_install.php
+++ b/phpBB/includes/functions_install.php
@@ -505,6 +505,19 @@ function connect_check_db($dbms_details, $table_prefix, $dbhost, $dbuser, $dbpas
 			* @todo check odbc.defaultlrl (min 128K) and odbc.defaultbinmode (1)
 			*/
 		break;
+
+		case 'db2':
+			if (version_compare($db->sql_server_info(true), '8.2.2', '<'))
+			{
+				$error[] = phpbb::$user->lang['INST_ERR_DB_DB2_VERSION'];
+			}
+
+			// Now check the extension version
+			if (!function_exists('db2_escape_string'))
+			{
+				$error[] = phpbb::$user->lang['INST_ERR_DB_DB2_EXT_VERSION'];
+			}
+		break;
 	}
 
 	if (sizeof($error))
diff --git a/phpBB/language/en/install.php b/phpBB/language/en/install.php
index 99b608e326..4181e081ca 100644
--- a/phpBB/language/en/install.php
+++ b/phpBB/language/en/install.php
@@ -235,7 +235,10 @@ $lang = array_merge($lang, array(
 	'INST_ERR_DB_SQLITE_VERSION'	=> 'The version of the SQLite extension you have installed is too old, it must be upgraded to at least 2.8.2.',
 	'INST_ERR_DB_ORACLE_VERSION'	=> 'The version of Oracle installed on the target server must be at least 9.2, phpBB 3.1 cannot be installed on an older version.',
 	'INST_ERR_DB_FIREBIRD_VERSION'	=> 'The version of Firebird installed on this machine is older than 2.0, please upgrade to a newer version.',
-	'INST_ERR_DB_POSTGRES_VERSION'	=> 'The version of PostgreSQL installed on this machine is older than 8.2, please upgrade to a newer version.',
+	'INST_ERR_DB_POSTGRES_VERSION'	=> 'The version of PostgreSQL installed on the target server is older than 8.2, please upgrade to a newer version.',
+	'INST_ERR_DB_DB2_VERSION'		=> 'The version of DB2 installed on the target server is older than 8.2.2, please upgrade to a newer version.',
+	'INST_ERR_DB_DB2_EXT_VERSION'	=> 'The version of the IBM_DB2 extension installed on this machine is older than 1.6.0, please install a newer version.',
+
 	'INST_ERR_DB_NO_ORACLE_NLS'		=> 'You must configure Oracle so that the <var>NLS_CHARACTERSET</var> parameter is set to <var>ALU32UTF8</var>.',
 	'INST_ERR_DB_NO_FIREBIRD_PS'	=> 'The database you selected for Firebird has a page size less than 8192, it must be at least 8192.',
 	'INST_ERR_DB_NO_POSTGRES_UTF8'	=> 'The database you have selected was not created in <var>UNICODE</var> or <var>UTF8</var> encoding. Try installing with a database in <var>UNICODE</var> or <var>UTF8</var> encoding.',