diff --git a/system/database/DB.php b/system/database/DB.php
index 1fe44c0..b0113b6 100755
--- a/system/database/DB.php
+++ b/system/database/DB.php
@@ -53,7 +53,7 @@
 			show_error('No database connection settings were found in the database config file.');
 		}
 
-		if ($params != '')
+		if ($params !== '')
 		{
 			$active_group = $params;
 		}
@@ -106,7 +106,7 @@
 	}
 
 	// No DB specified yet? Beat them senseless...
-	if ( ! isset($params['dbdriver']) OR $params['dbdriver'] == '')
+	if ( ! isset($params['dbdriver']) OR $params['dbdriver'] === '')
 	{
 		show_error('You have not selected a database type to connect to.');
 	}
@@ -128,7 +128,7 @@
 
 	require_once(BASEPATH.'database/DB_driver.php');
 
-	if ( ! isset($query_builder) OR $query_builder == TRUE)
+	if ( ! isset($query_builder) OR $query_builder === TRUE)
 	{
 		require_once(BASEPATH.'database/DB_query_builder.php');
 		if ( ! class_exists('CI_DB'))
@@ -152,12 +152,12 @@
 	$driver = 'CI_DB_'.$params['dbdriver'].'_driver';
 	$DB = new $driver($params);
 
-	if ($DB->autoinit == TRUE)
+	if ($DB->autoinit === TRUE)
 	{
 		$DB->initialize();
 	}
 
-	if (isset($params['stricton']) && $params['stricton'] == TRUE)
+	if (isset($params['stricton']) && $params['stricton'] === TRUE)
 	{
 		$DB->query('SET SESSION sql_mode="STRICT_ALL_TABLES"');
 	}
diff --git a/system/database/DB_cache.php b/system/database/DB_cache.php
index ff94285..443bbce 100644
--- a/system/database/DB_cache.php
+++ b/system/database/DB_cache.php
@@ -55,9 +55,9 @@
 	 */
 	public function check_path($path = '')
 	{
-		if ($path == '')
+		if ($path === '')
 		{
-			if ($this->db->cachedir == '')
+			if ($this->db->cachedir === '')
 			{
 				return $this->db->cache_off();
 			}
@@ -95,8 +95,8 @@
 			return $this->db->cache_off();
 		}
 
-		$segment_one = ($this->CI->uri->segment(1) == FALSE) ? 'default' : $this->CI->uri->segment(1);
-		$segment_two = ($this->CI->uri->segment(2) == FALSE) ? 'index' : $this->CI->uri->segment(2);
+		$segment_one = ($this->CI->uri->segment(1) === FALSE) ? 'default' : $this->CI->uri->segment(1);
+		$segment_two = ($this->CI->uri->segment(2) === FALSE) ? 'index' : $this->CI->uri->segment(2);
 		$filepath = $this->db->cachedir.$segment_one.'+'.$segment_two.'/'.md5($sql);
 
 		if (FALSE === ($cachedata = read_file($filepath)))
@@ -121,8 +121,8 @@
 			return $this->db->cache_off();
 		}
 
-		$segment_one = ($this->CI->uri->segment(1) == FALSE) ? 'default' : $this->CI->uri->segment(1);
-		$segment_two = ($this->CI->uri->segment(2) == FALSE) ? 'index' : $this->CI->uri->segment(2);
+		$segment_one = ($this->CI->uri->segment(1) === FALSE) ? 'default' : $this->CI->uri->segment(1);
+		$segment_two = ($this->CI->uri->segment(2) === FALSE) ? 'index' : $this->CI->uri->segment(2);
 		$dir_path = $this->db->cachedir.$segment_one.'+'.$segment_two.'/';
 		$filename = md5($sql);
 
@@ -154,14 +154,14 @@
 	 */
 	public function delete($segment_one = '', $segment_two = '')
 	{
-		if ($segment_one == '')
+		if ($segment_one === '')
 		{
-			$segment_one  = ($this->CI->uri->segment(1) == FALSE) ? 'default' : $this->CI->uri->segment(1);
+			$segment_one  = ($this->CI->uri->segment(1) === FALSE) ? 'default' : $this->CI->uri->segment(1);
 		}
 
-		if ($segment_two == '')
+		if ($segment_two === '')
 		{
-			$segment_two = ($this->CI->uri->segment(2) == FALSE) ? 'index' : $this->CI->uri->segment(2);
+			$segment_two = ($this->CI->uri->segment(2) === FALSE) ? 'index' : $this->CI->uri->segment(2);
 		}
 
 		$dir_path = $this->db->cachedir.$segment_one.'+'.$segment_two.'/';
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index bbb7b7a..39c19cd 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -113,7 +113,7 @@
 		// ----------------------------------------------------------------
 
 		// Connect to the database and set the connection ID
-		$this->conn_id = ($this->pconnect == FALSE) ? $this->db_connect() : $this->db_pconnect();
+		$this->conn_id = ($this->pconnect === FALSE) ? $this->db_connect() : $this->db_pconnect();
 
 		// No connection resource? Check if there is a failover else throw an error
 		if ( ! $this->conn_id)
@@ -131,7 +131,7 @@
 					}
 
 					// Try to connect
-					$this->conn_id = ($this->pconnect == FALSE) ? $this->db_connect() : $this->db_pconnect();
+					$this->conn_id = ($this->pconnect === FALSE) ? $this->db_connect() : $this->db_pconnect();
 
 					// If a connection is made break the foreach loop
 					if ($this->conn_id)
@@ -297,7 +297,7 @@
 	 */
 	public function query($sql, $binds = FALSE, $return_object = TRUE)
 	{
-		if ($sql == '')
+		if ($sql === '')
 		{
 			log_message('error', 'Invalid query: '.$sql);
 
@@ -305,7 +305,7 @@
 		}
 
 		// Verify table prefix and replace if necessary
-		if ($this->dbprefix != '' && $this->swap_pre != '' && $this->dbprefix != $this->swap_pre)
+		if ($this->dbprefix !== '' && $this->swap_pre !== '' && $this->dbprefix !== $this->swap_pre)
 		{
 			$sql = preg_replace('/(\W)'.$this->swap_pre.'(\S+?)/', '\\1'.$this->dbprefix.'\\2', $sql);
 		}
@@ -319,7 +319,7 @@
 		// Is query caching enabled? If the query is a "read type"
 		// we will load the caching class and return the previously
 		// cached query if it exists
-		if ($this->cache_on == TRUE && stripos($sql, 'SELECT') !== FALSE && $this->_cache_init())
+		if ($this->cache_on === TRUE && stripos($sql, 'SELECT') !== FALSE && $this->_cache_init())
 		{
 			$this->load_rdriver();
 			if (FALSE !== ($cache = $this->CACHE->read($sql)))
@@ -329,7 +329,7 @@
 		}
 
 		// Save the  query for debugging
-		if ($this->save_queries == TRUE)
+		if ($this->save_queries === TRUE)
 		{
 			$this->queries[] = $sql;
 		}
@@ -340,7 +340,7 @@
 		// Run the Query
 		if (FALSE === ($this->result_id = $this->simple_query($sql)))
 		{
-			if ($this->save_queries == TRUE)
+			if ($this->save_queries === TRUE)
 			{
 				$this->query_times[] = 0;
 			}
@@ -373,7 +373,7 @@
 		$time_end = microtime(TRUE);
 		$this->benchmark += $time_end - $time_start;
 
-		if ($this->save_queries == TRUE)
+		if ($this->save_queries === TRUE)
 		{
 			$this->query_times[] = $time_end - $time_start;
 		}
@@ -387,7 +387,7 @@
 		{
 			// If caching is enabled we'll auto-cleanup any
 			// existing files related to this particular URI
-			if ($this->cache_on == TRUE && $this->cache_autodel == TRUE && $this->_cache_init())
+			if ($this->cache_on === TRUE && $this->cache_autodel === TRUE && $this->_cache_init())
 			{
 				$this->CACHE->delete();
 			}
@@ -409,7 +409,7 @@
 
 		// Is query caching enabled? If so, we'll serialize the
 		// result object and save it to a cache file.
-		if ($this->cache_on == TRUE && $this->_cache_init())
+		if ($this->cache_on === TRUE && $this->_cache_init())
 		{
 			// We'll create a new instance of the result object
 			// only without the platform specific driver since
@@ -752,13 +752,13 @@
 	 */
 	public function count_all($table = '')
 	{
-		if ($table == '')
+		if ($table === '')
 		{
 			return 0;
 		}
 
 		$query = $this->query($this->_count_string.$this->escape_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
-		if ($query->num_rows() == 0)
+		if ($query->num_rows() === 0)
 		{
 			return 0;
 		}
@@ -850,7 +850,7 @@
 			return $this->data_cache['field_names'][$table];
 		}
 
-		if ($table == '')
+		if ($table === '')
 		{
 			return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE;
 		}
@@ -918,7 +918,7 @@
 	 */
 	public function field_data($table = '')
 	{
-		if ($table == '')
+		if ($table === '')
 		{
 			return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE;
 		}
@@ -939,7 +939,7 @@
 	 */
 	public function escape_identifiers($item)
 	{
-		if ($this->_escape_char == '')
+		if ($this->_escape_char === '')
 		{
 			return $item;
 		}
@@ -998,7 +998,7 @@
 	 */
 	public function update_string($table, $data, $where)
 	{
-		if ($where == '')
+		if ($where === '')
 		{
 			return FALSE;
 		}
@@ -1018,7 +1018,7 @@
 			$dest = array();
 			foreach ($where as $key => $val)
 			{
-				$prefix = (count($dest) == 0) ? '' : ' AND ';
+				$prefix = (count($dest) === 0) ? '' : ' AND ';
 				$key = $this->protect_identifiers($key);
 
 				if ($val !== '')
@@ -1062,7 +1062,7 @@
 	 */
 	public function call_function($function)
 	{
-		$driver = ($this->dbdriver == 'postgre') ? 'pg_' : $this->dbdriver.'_';
+		$driver = ($this->dbdriver === 'postgre') ? 'pg_' : $this->dbdriver.'_';
 
 		if (FALSE === strpos($driver, $function))
 		{
@@ -1217,7 +1217,7 @@
 
 		$heading = $LANG->line('db_error_heading');
 
-		if ($native == TRUE)
+		if ($native === TRUE)
 		{
 			$message = (array) $error;
 		}
@@ -1345,7 +1345,7 @@
 			}
 
 			// Is there a table prefix defined in the config file? If not, no need to do anything
-			if ($this->dbprefix != '')
+			if ($this->dbprefix !== '')
 			{
 				// We now add the table prefix based on some logic.
 				// Do we have 4 segments (hostname.database.table.column)?
@@ -1369,13 +1369,13 @@
 
 				// This flag is set when the supplied $item does not contain a field name.
 				// This can happen when this function is being called from a JOIN.
-				if ($field_exists == FALSE)
+				if ($field_exists === FALSE)
 				{
 					$i++;
 				}
 
 				// Verify table prefix and replace if necessary
-				if ($this->swap_pre != '' && strpos($parts[$i], $this->swap_pre) === 0)
+				if ($this->swap_pre !== '' && strpos($parts[$i], $this->swap_pre) === 0)
 				{
 					$parts[$i] = preg_replace('/^'.$this->swap_pre.'(\S+?)/', $this->dbprefix.'\\1', $parts[$i]);
 				}
@@ -1398,15 +1398,15 @@
 		}
 
 		// Is there a table prefix? If not, no need to insert it
-		if ($this->dbprefix != '')
+		if ($this->dbprefix !== '')
 		{
 			// Verify table prefix and replace if necessary
-			if ($this->swap_pre != '' && strpos($item, $this->swap_pre) === 0)
+			if ($this->swap_pre !== '' && strpos($item, $this->swap_pre) === 0)
 			{
 				$item = preg_replace('/^'.$this->swap_pre.'(\S+?)/', $this->dbprefix.'\\1', $item);
 			}
 			// Do we prefix an item with no segments?
-			elseif ($prefix_single == TRUE && strpos($item, $this->dbprefix) !== 0)
+			elseif ($prefix_single === TRUE && strpos($item, $this->dbprefix) !== 0)
 			{
 				$item = $this->dbprefix.$item;
 			}
diff --git a/system/database/DB_forge.php b/system/database/DB_forge.php
index a519575..ff5eb3f 100644
--- a/system/database/DB_forge.php
+++ b/system/database/DB_forge.php
@@ -85,7 +85,7 @@
 	 */
 	public function drop_database($db_name)
 	{
-		if ($db_name == '')
+		if ($db_name === '')
 		{
 			show_error('A table name is required for that operation.');
 			return FALSE;
@@ -123,7 +123,7 @@
 			return;
 		}
 
-		if ($key == '')
+		if ($key === '')
 		{
 			show_error('Key information is required for that operation.');
 		}
@@ -150,7 +150,7 @@
 	 */
 	public function add_field($field = '')
 	{
-		if ($field == '')
+		if ($field === '')
 		{
 			show_error('Field information is required.');
 		}
@@ -197,7 +197,7 @@
 	 */
 	public function create_table($table = '', $if_not_exists = FALSE)
 	{
-		if ($table == '')
+		if ($table === '')
 		{
 			show_error('A table name is required for that operation.');
 		}
@@ -222,7 +222,7 @@
 	 */
 	public function drop_table($table_name)
 	{
-		if ($table_name == '')
+		if ($table_name === '')
 		{
 			return ($this->db->db_debug) ? $this->db->display_error('db_table_name_required') : FALSE;
 		}
@@ -245,7 +245,7 @@
 	 */
 	public function rename_table($table_name, $new_table_name)
 	{
-		if ($table_name == '' OR $new_table_name == '')
+		if ($table_name === '' OR $new_table_name === '')
 		{
 			show_error('A table name is required for that operation.');
 			return FALSE;
@@ -273,7 +273,7 @@
 	 */
 	public function add_column($table = '', $field = array(), $after_field = '')
 	{
-		if ($table == '')
+		if ($table === '')
 		{
 			show_error('A table name is required for that operation.');
 		}
@@ -284,7 +284,7 @@
 		{
 			$this->add_field(array($k => $field[$k]));
 
-			if (count($this->fields) == 0)
+			if (count($this->fields) === 0)
 			{
 				show_error('Field information is required.');
 			}
@@ -312,12 +312,12 @@
 	 */
 	public function drop_column($table = '', $column_name = '')
 	{
-		if ($table == '')
+		if ($table === '')
 		{
 			show_error('A table name is required for that operation.');
 		}
 
-		if ($column_name == '')
+		if ($column_name === '')
 		{
 			show_error('A column name is required for that operation.');
 		}
@@ -337,7 +337,7 @@
 	 */
 	public function modify_column($table = '', $field = array())
 	{
-		if ($table == '')
+		if ($table === '')
 		{
 			show_error('A table name is required for that operation.');
 		}
diff --git a/system/database/DB_query_builder.php b/system/database/DB_query_builder.php
index cee4354..45d68cd 100644
--- a/system/database/DB_query_builder.php
+++ b/system/database/DB_query_builder.php
@@ -97,7 +97,7 @@
 		{
 			$val = trim($val);
 
-			if ($val != '')
+			if ($val !== '')
 			{
 				$this->qb_select[] = $val;
 				$this->qb_no_escape[] = $escape;
@@ -194,7 +194,7 @@
 	 */
 	protected function _max_min_avg_sum($select = '', $alias = '', $type = 'MAX')
 	{
-		if ( ! is_string($select) OR $select == '')
+		if ( ! is_string($select) OR $select === '')
 		{
 			$this->display_error('db_invalid_query');
 		}
@@ -206,7 +206,7 @@
 			show_error('Invalid function type: '.$type);
 		}
 
-		if ($alias == '')
+		if ($alias === '')
 		{
 			$alias = $this->_create_alias_from_table(trim($select));
 		}
@@ -325,7 +325,7 @@
 	 */
 	public function join($table, $cond, $type = '')
 	{
-		if ($type != '')
+		if ($type !== '')
 		{
 			$type = strtoupper(trim($type));
 
@@ -691,7 +691,7 @@
 			}
 
 			// some platforms require an escape sequence definition for LIKE wildcards
-			if ($this->_like_escape_str != '')
+			if ($this->_like_escape_str !== '')
 			{
 				$like_statement = $like_statement.sprintf($this->_like_escape_str, $this->_like_escape_chr);
 			}
@@ -829,7 +829,7 @@
 		{
 			$val = trim($val);
 
-			if ($val != '')
+			if ($val !== '')
 			{
 				$this->qb_groupby[] = $val = $this->protect_identifiers($val);
 
@@ -908,7 +908,7 @@
 				$k .= ' = ';
 			}
 
-			if ($v != '')
+			if ($v !== '')
 			{
 				$v = ' '.$this->escape($v);
 			}
@@ -941,7 +941,7 @@
 			$orderby = ''; // Random results want or don't need a field name
 			$direction = $this->_random_keyword;
 		}
-		elseif (trim($direction) != '')
+		elseif (trim($direction) !== '')
 		{
 			$direction = (in_array(strtoupper(trim($direction)), array('ASC', 'DESC'), TRUE)) ? ' '.$direction : ' ASC';
 		}
@@ -963,7 +963,7 @@
 
 			$orderby = implode(', ', $temp);
 		}
-		elseif ($direction != $this->_random_keyword)
+		elseif ($direction !== $this->_random_keyword)
 		{
 			if ($escape === TRUE)
 			{
@@ -1064,7 +1064,7 @@
 	 */
 	public function get_compiled_select($table = '', $reset = TRUE)
 	{
-		if ($table != '')
+		if ($table !== '')
 		{
 			$this->_track_aliases($table);
 			$this->from($table);
@@ -1095,7 +1095,7 @@
 	 */
 	public function get($table = '', $limit = null, $offset = null)
 	{
-		if ($table != '')
+		if ($table !== '')
 		{
 			$this->_track_aliases($table);
 			$this->from($table);
@@ -1124,7 +1124,7 @@
 	 */
 	public function count_all_results($table = '')
 	{
-		if ($table != '')
+		if ($table !== '')
 		{
 			$this->_track_aliases($table);
 			$this->from($table);
@@ -1156,7 +1156,7 @@
 	 */
 	public function get_where($table = '', $where = null, $limit = null, $offset = null)
 	{
-		if ($table != '')
+		if ($table !== '')
 		{
 			$this->from($table);
 		}
@@ -1204,7 +1204,7 @@
 			return FALSE;
 		}
 
-		if ($table == '')
+		if ($table === '')
 		{
 			if ( ! isset($this->qb_from[0]))
 			{
@@ -1404,7 +1404,7 @@
 			return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE;
 		}
 
-		if ($table != '')
+		if ($table !== '')
 		{
 			$this->qb_from[0] = $table;
 		}
@@ -1439,7 +1439,7 @@
 			return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE;
 		}
 
-		if ($table == '')
+		if ($table === '')
 		{
 			if ( ! isset($this->qb_from[0]))
 			{
@@ -1530,12 +1530,12 @@
 			return FALSE;
 		}
 
-		if ($where != NULL)
+		if ($where !== NULL)
 		{
 			$this->where($where);
 		}
 
-		if ($limit != NULL)
+		if ($limit !== NULL)
 		{
 			$this->limit($limit);
 		}
@@ -1595,12 +1595,12 @@
 	 */
 	protected function _validate_update($table = '')
 	{
-		if (count($this->qb_set) == 0)
+		if (count($this->qb_set) === 0)
 		{
 			return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE;
 		}
 
-		if ($table != '')
+		if ($table !== '')
 		{
 			$this->qb_from[0] = $table;
 		}
@@ -1644,7 +1644,7 @@
 			return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE;
 		}
 
-		if ($table == '')
+		if ($table === '')
 		{
 			if ( ! isset($this->qb_from[0]))
 			{
@@ -1689,7 +1689,7 @@
 			$clean = array();
 			foreach ($v as $k2 => $v2)
 			{
-				if ($k2 == $index)
+				if ($k2 === $index)
 				{
 					$index_set = TRUE;
 				}
@@ -1720,7 +1720,7 @@
 	 */
 	public function empty_table($table = '')
 	{
-		if ($table == '')
+		if ($table === '')
 		{
 			if ( ! isset($this->qb_from[0]))
 			{
@@ -1753,7 +1753,7 @@
 	 */
 	public function truncate($table = '')
 	{
-		if ($table == '')
+		if ($table === '')
 		{
 			if ( ! isset($this->qb_from[0]))
 			{
@@ -1827,7 +1827,7 @@
 		// Combine any cached components with the current statements
 		$this->_merge_cache();
 
-		if ($table == '')
+		if ($table === '')
 		{
 			if ( ! isset($this->qb_from[0]))
 			{
@@ -1851,12 +1851,12 @@
 			$table = $this->protect_identifiers($table, TRUE, NULL, FALSE);
 		}
 
-		if ($where != '')
+		if ($where !== '')
 		{
 			$this->where($where);
 		}
 
-		if ($limit != NULL)
+		if ($limit !== NULL)
 		{
 			$this->limit($limit);
 		}
@@ -1912,7 +1912,7 @@
 	 */
 	public function dbprefix($table = '')
 	{
-		if ($table == '')
+		if ($table === '')
 		{
 			$this->display_error('db_table_name_required');
 		}
@@ -2072,7 +2072,7 @@
 			$sql .= "\nORDER BY ".implode(', ', $this->qb_orderby);
 			if ($this->qb_order !== FALSE)
 			{
-				$sql .= ($this->qb_order == 'desc') ? ' DESC' : ' ASC';
+				$sql .= ($this->qb_order === 'desc') ? ' DESC' : ' ASC';
 			}
 		}
 
@@ -2106,7 +2106,7 @@
 		foreach (get_object_vars($object) as $key => $val)
 		{
 			// There are some built in keys we need to ignore for this conversion
-			if ( ! is_object($val) && ! is_array($val) && $key != '_parent_name')
+			if ( ! is_object($val) && ! is_array($val) && $key !== '_parent_name')
 			{
 				$array[$key] = $val;
 			}
diff --git a/system/database/DB_result.php b/system/database/DB_result.php
index 334e08c..991f6ba 100644
--- a/system/database/DB_result.php
+++ b/system/database/DB_result.php
@@ -81,7 +81,7 @@
 			return $this->custom_result_object[$class_name];
 		}
 
-		if ($this->result_id === FALSE OR $this->num_rows() == 0)
+		if ($this->result_id === FALSE OR $this->num_rows() === 0)
 		{
 			return array();
 		}
@@ -122,7 +122,7 @@
 		// In the event that query caching is on the result_id variable
 		// will return FALSE since there isn't a valid SQL resource so
 		// we'll simply return an empty array.
-		if ($this->result_id === FALSE OR $this->num_rows() == 0)
+		if ($this->result_id === FALSE OR $this->num_rows() === 0)
 		{
 			return array();
 		}
@@ -153,7 +153,7 @@
 		// In the event that query caching is on the result_id variable
 		// will return FALSE since there isn't a valid SQL resource so
 		// we'll simply return an empty array.
-		if ($this->result_id === FALSE OR $this->num_rows() == 0)
+		if ($this->result_id === FALSE OR $this->num_rows() === 0)
 		{
 			return array();
 		}
@@ -224,7 +224,7 @@
 			return;
 		}
 
-		if ($key != '' && ! is_null($value))
+		if ($key !== '' && ! is_null($value))
 		{
 			$this->row_data[$key] = $value;
 		}
@@ -245,7 +245,7 @@
 			return NULL;
 		}
 
-		if ($n != $this->current_row && isset($result[$n]))
+		if ($n !== $this->current_row && isset($result[$n]))
 		{
 			$this->current_row = $n;
 		}
@@ -268,7 +268,7 @@
 			return NULL;
 		}
 
-		if ($n != $this->current_row && isset($result[$n]))
+		if ($n !== $this->current_row && isset($result[$n]))
 		{
 			$this->current_row = $n;
 		}
@@ -291,7 +291,7 @@
 			return NULL;
 		}
 
-		if ($n != $this->current_row && isset($result[$n]))
+		if ($n !== $this->current_row && isset($result[$n]))
 		{
 			$this->current_row = $n;
 		}
diff --git a/system/database/DB_utility.php b/system/database/DB_utility.php
index cb97ff4..02c9218 100644
--- a/system/database/DB_utility.php
+++ b/system/database/DB_utility.php
@@ -343,7 +343,7 @@
 		if ($prefs['format'] === 'zip')
 		{
 			// Set the filename if not provided (only needed with Zip files)
-			if ($prefs['filename'] == '')
+			if ($prefs['filename'] === '')
 			{
 				$prefs['filename'] = (count($prefs['tables']) === 1 ? $prefs['tables'] : $this->db->database)
 							.date('Y-m-d_H-i', time()).'.sql';
@@ -369,7 +369,7 @@
 			$CI->zip->add_data($prefs['filename'], $this->_backup($prefs));
 			return $CI->zip->get_zip();
 		}
-		elseif ($prefs['format'] == 'txt') // Was a text file requested?
+		elseif ($prefs['format'] === 'txt') // Was a text file requested?
 		{
 			return $this->_backup($prefs);
 		}
diff --git a/system/database/drivers/cubrid/cubrid_driver.php b/system/database/drivers/cubrid/cubrid_driver.php
index 817dfdc..b7763d9 100644
--- a/system/database/drivers/cubrid/cubrid_driver.php
+++ b/system/database/drivers/cubrid/cubrid_driver.php
@@ -74,7 +74,7 @@
 		else
 		{
 			// If no port is defined by the user, use the default value
-			$this->port == '' OR $this->port = 33000;
+			$this->port === '' OR $this->port = 33000;
 		}
 	}
 
@@ -340,7 +340,7 @@
 	{
 		$sql = 'SHOW TABLES';
 
-		if ($prefix_limit !== FALSE && $this->dbprefix != '')
+		if ($prefix_limit !== FALSE && $this->dbprefix !== '')
 		{
 			return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'";
 		}
@@ -435,7 +435,7 @@
 
 			foreach (array_keys($val) as $field)
 			{
-				if ($field != $index)
+				if ($field !== $index)
 				{
 					$final[$field][] = 'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field];
 				}
@@ -451,7 +451,7 @@
 		}
 
 		return 'UPDATE '.$table.' SET '.substr($cases, 0, -2)
-			.' WHERE '.(($where != '' && count($where) > 0) ? implode(' ', $where).' AND ' : '')
+			.' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '')
 			.$index.' IN ('.implode(',', $ids).')';
 	}
 
@@ -469,7 +469,7 @@
 	 */
 	protected function _limit($sql, $limit, $offset)
 	{
-		return $sql.'LIMIT '.($offset == 0 ? '' : $offset.', ').$limit;
+		return $sql.'LIMIT '.($offset === 0 ? '' : $offset.', ').$limit;
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/cubrid/cubrid_forge.php b/system/database/drivers/cubrid/cubrid_forge.php
index 4e66f81..fb97162 100644
--- a/system/database/drivers/cubrid/cubrid_forge.php
+++ b/system/database/drivers/cubrid/cubrid_forge.php
@@ -193,7 +193,7 @@
 		}
 
 		return $sql.$this->_process_fields($fields)
-			.($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : '');
+			.($after_field !== '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : '');
 	}
 
 }
diff --git a/system/database/drivers/interbase/interbase_driver.php b/system/database/drivers/interbase/interbase_driver.php
index 49d3cda..8cbbfa1 100644
--- a/system/database/drivers/interbase/interbase_driver.php
+++ b/system/database/drivers/interbase/interbase_driver.php
@@ -255,7 +255,7 @@
 	{
 		$sql = 'SELECT "RDB$RELATION_NAME" FROM "RDB$RELATIONS" WHERE "RDB$RELATION_NAME" NOT LIKE \'RDB$%\' AND "RDB$RELATION_NAME" NOT LIKE \'MON$%\'';
 
-		if ($prefix_limit !== FALSE && $this->dbprefix != '')
+		if ($prefix_limit !== FALSE && $this->dbprefix !== '')
 		{
 			return $sql.' AND "RDB$RELATION_NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
 		}
diff --git a/system/database/drivers/interbase/interbase_forge.php b/system/database/drivers/interbase/interbase_forge.php
index c850656..5470179 100644
--- a/system/database/drivers/interbase/interbase_forge.php
+++ b/system/database/drivers/interbase/interbase_forge.php
@@ -195,7 +195,7 @@
 
 		$sql .= " {$column_definition}";
 
-		if ($default_value != '')
+		if ($default_value !== '')
 		{
 			$sql .= " DEFAULT \"{$default_value}\"";
 		}
@@ -209,7 +209,7 @@
 			$sql .= ' NOT NULL';
 		}
 
-		if ($after_field != '')
+		if ($after_field !== '')
 		{
 			$sql .= ' AFTER ' . $this->db->protect_identifiers($after_field);
 		}
diff --git a/system/database/drivers/mssql/mssql_driver.php b/system/database/drivers/mssql/mssql_driver.php
index 342ff26..5bd6669 100644
--- a/system/database/drivers/mssql/mssql_driver.php
+++ b/system/database/drivers/mssql/mssql_driver.php
@@ -64,7 +64,7 @@
 	 */
 	public function db_connect()
 	{
-		if ($this->port != '')
+		if ($this->port !== '')
 		{
 			$this->hostname .= ','.$this->port;
 		}
@@ -81,7 +81,7 @@
 	 */
 	public function db_pconnect()
 	{
-		if ($this->port != '')
+		if ($this->port !== '')
 		{
 			$this->hostname .= ','.$this->port;
 		}
@@ -316,7 +316,7 @@
 		$sql = "SELECT name FROM sysobjects WHERE type = 'U' ORDER BY name";
 
 		// for future compatibility
-		if ($prefix_limit !== FALSE AND $this->dbprefix != '')
+		if ($prefix_limit !== FALSE AND $this->dbprefix !== '')
 		{
 			//$sql .= " LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
 			return FALSE; // not currently supported
diff --git a/system/database/drivers/mssql/mssql_forge.php b/system/database/drivers/mssql/mssql_forge.php
index bbf2d96..3708c22 100644
--- a/system/database/drivers/mssql/mssql_forge.php
+++ b/system/database/drivers/mssql/mssql_forge.php
@@ -155,21 +155,21 @@
 		$sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name);
 
 		// DROP has everything it needs now.
-		if ($alter_type == 'DROP')
+		if ($alter_type === 'DROP')
 		{
 			return $sql;
 		}
 
 		$sql .= " ".$column_definition;
 
-		if ($default_value != '')
+		if ($default_value !== '')
 		{
 			$sql .= " DEFAULT '".$default_value."'";
 		}
 
 		$sql .= ($null === NULL) ? ' NULL' : ' NOT NULL';
 
-		if ($after_field != '')
+		if ($after_field !== '')
 		{
 			return $sql.' AFTER '.$this->db->protect_identifiers($after_field);
 		}
diff --git a/system/database/drivers/mysql/mysql_driver.php b/system/database/drivers/mysql/mysql_driver.php
index 7a1a7b9..41e86f3 100644
--- a/system/database/drivers/mysql/mysql_driver.php
+++ b/system/database/drivers/mysql/mysql_driver.php
@@ -68,7 +68,7 @@
 	{
 		parent::__construct($params);
 
-		if ($this->port != '')
+		if ($this->port !== '')
 		{
 			$this->hostname .= ':'.$this->port;
 		}
@@ -337,7 +337,7 @@
 	{
 		$sql = 'SHOW TABLES FROM '.$this->_escape_char.$this->database.$this->_escape_char;
 
-		if ($prefix_limit !== FALSE && $this->dbprefix != '')
+		if ($prefix_limit !== FALSE && $this->dbprefix !== '')
 		{
 			return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'";
 		}
@@ -370,7 +370,7 @@
 	 */
 	public function field_data($table = '')
 	{
-		if ($table == '')
+		if ($table === '')
 		{
 			return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE;
 		}
@@ -451,7 +451,7 @@
 
 			foreach (array_keys($val) as $field)
 			{
-				if ($field != $index)
+				if ($field !== $index)
 				{
 					$final[$field][] =  'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field];
 				}
@@ -467,7 +467,7 @@
 		}
 
 		return 'UPDATE '.$table.' SET '.substr($cases, 0, -2)
-			.' WHERE '.(($where != '' && count($where) > 0) ? implode(' ', $where).' AND ' : '')
+			.' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '')
 			.$index.' IN('.implode(',', $ids).')';
 	}
 
@@ -485,7 +485,7 @@
 	 */
 	protected function _limit($sql, $limit, $offset)
 	{
-		return $sql.' LIMIT '.($offset == 0 ? '' : $offset.', ').$limit;
+		return $sql.' LIMIT '.($offset === 0 ? '' : $offset.', ').$limit;
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/mysql/mysql_forge.php b/system/database/drivers/mysql/mysql_forge.php
index 0e39aff..ffd374f 100644
--- a/system/database/drivers/mysql/mysql_forge.php
+++ b/system/database/drivers/mysql/mysql_forge.php
@@ -178,7 +178,7 @@
 		}
 
 		return $sql.$this->_process_fields($fields)
-			.($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : '');
+			.($after_field !== '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : '');
 	}
 
 }
diff --git a/system/database/drivers/mysql/mysql_utility.php b/system/database/drivers/mysql/mysql_utility.php
index 642323d..643682f 100644
--- a/system/database/drivers/mysql/mysql_utility.php
+++ b/system/database/drivers/mysql/mysql_utility.php
@@ -76,7 +76,7 @@
 			// Write out the table schema
 			$output .= '#'.$newline.'# TABLE STRUCTURE FOR: '.$table.$newline.'#'.$newline.$newline;
 
-			if ($add_drop == TRUE)
+			if ($add_drop === TRUE)
 			{
 				$output .= 'DROP TABLE IF EXISTS '.$this->db->protect_identifiers($table).';'.$newline.$newline;
 			}
@@ -92,7 +92,7 @@
 			}
 
 			// If inserts are not needed we're done...
-			if ($add_insert == FALSE)
+			if ($add_insert === FALSE)
 			{
 				continue;
 			}
@@ -100,7 +100,7 @@
 			// Grab all the data from the current table
 			$query = $this->db->query('SELECT * FROM '.$this->db->protect_identifiers($table));
 
-			if ($query->num_rows() == 0)
+			if ($query->num_rows() === 0)
 			{
 				continue;
 			}
@@ -143,7 +143,7 @@
 					else
 					{
 						// Escape the data if it's not an integer
-						$val_str .= ($is_int[$i] == FALSE) ? $this->db->escape($v) : $v;
+						$val_str .= ($is_int[$i] === FALSE) ? $this->db->escape($v) : $v;
 					}
 
 					// Append a comma
diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php
index dd544f6..5814ace 100644
--- a/system/database/drivers/mysqli/mysqli_driver.php
+++ b/system/database/drivers/mysqli/mysqli_driver.php
@@ -71,7 +71,7 @@
 	 */
 	public function db_connect()
 	{
-		return ($this->port != '')
+		return ($this->port !== '')
 			? @new mysqli($this->hostname, $this->username, $this->password, $this->database, $this->port)
 			: @new mysqli($this->hostname, $this->username, $this->password, $this->database);
 	}
@@ -91,7 +91,7 @@
 			return $this->db_connect();
 		}
 
-		return ($this->port != '')
+		return ($this->port !== '')
 			? @new mysqli('p:'.$this->hostname, $this->username, $this->password, $this->database, $this->port)
 			: @new mysqli('p:'.$this->hostname, $this->username, $this->password, $this->database);
 	}
@@ -337,7 +337,7 @@
 	{
 		$sql = 'SHOW TABLES FROM '.$this->_escape_char.$this->database.$this->_escape_char;
 
-		if ($prefix_limit !== FALSE && $this->dbprefix != '')
+		if ($prefix_limit !== FALSE && $this->dbprefix !== '')
 		{
 			return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'";
 		}
@@ -370,7 +370,7 @@
 	 */
 	public function field_data($table = '')
 	{
-		if ($table == '')
+		if ($table === '')
 		{
 			return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE;
 		}
@@ -451,7 +451,7 @@
 
 			foreach (array_keys($val) as $field)
 			{
-				if ($field != $index)
+				if ($field !== $index)
 				{
 					$final[$field][] =  'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field];
 				}
@@ -466,10 +466,10 @@
 				.'ELSE '.$k.' END, ';
 		}
 
-		$where = ($where != '' && count($where) > 0) ? implode(' ', $where).' AND ' : '';
+		$where = ($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '';
 
 		return 'UPDATE '.$table.' SET '.substr($cases, 0, -2)
-			.' WHERE '.(($where != '' && count($where) > 0) ? implode(' ', $where).' AND ' : '')
+			.' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '')
 			.$index.' IN('.implode(',', $ids).')';
 	}
 
diff --git a/system/database/drivers/mysqli/mysqli_forge.php b/system/database/drivers/mysqli/mysqli_forge.php
index 503574d..b00bfde 100644
--- a/system/database/drivers/mysqli/mysqli_forge.php
+++ b/system/database/drivers/mysqli/mysqli_forge.php
@@ -179,7 +179,7 @@
 		}
 
 		return $sql.$this->_process_fields($fields)
-			.($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : '');
+			.($after_field !== '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : '');
 	}
 
 }
diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index b979c8a..e780916 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -262,7 +262,7 @@
 	 */
 	public function stored_procedure($package, $procedure, $params)
 	{
-		if ($package == '' OR $procedure == '' OR ! is_array($params))
+		if ($package === '' OR $procedure === '' OR ! is_array($params))
 		{
 			if ($this->db_debug)
 			{
@@ -466,7 +466,7 @@
 	{
 		$sql = 'SELECT TABLE_NAME FROM ALL_TABLES';
 
-		if ($prefix_limit !== FALSE && $this->dbprefix != '')
+		if ($prefix_limit !== FALSE && $this->dbprefix !== '')
 		{
 			return $sql." WHERE TABLE_NAME LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
 		}
@@ -634,7 +634,7 @@
 	{
 		$this->limit_used = TRUE;
 		return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($offset + $limit).')'
-			.($offset != 0 ? ' WHERE rnum >= '.$offset : '');
+			.($offset !== 0 ? ' WHERE rnum >= '.$offset : '');
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/oci8/oci8_forge.php b/system/database/drivers/oci8/oci8_forge.php
index bd265b6..837e7ea 100644
--- a/system/database/drivers/oci8/oci8_forge.php
+++ b/system/database/drivers/oci8/oci8_forge.php
@@ -141,9 +141,9 @@
 		}
 
 		return $sql.' '.$column_definition
-			.($default_value != '' ? ' DEFAULT "'.$default_value.'"' : '')
+			.($default_value !== '' ? ' DEFAULT "'.$default_value.'"' : '')
 			.($null === NULL ? ' NULL' : ' NOT NULL')
-			.($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : '');
+			.($after_field !== '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : '');
 
 	}
 
diff --git a/system/database/drivers/odbc/odbc_driver.php b/system/database/drivers/odbc/odbc_driver.php
index 98fd806..b493e93 100644
--- a/system/database/drivers/odbc/odbc_driver.php
+++ b/system/database/drivers/odbc/odbc_driver.php
@@ -64,7 +64,7 @@
 		$this->_random_keyword = ' RND('.time().')'; // database specific random keyword
 
 		// Legacy support for DSN in the hostname field
-		if ($this->dsn == '')
+		if ($this->dsn === '')
 		{
 			$this->dsn = $this->hostname;
 		}
@@ -256,7 +256,7 @@
 	{
 		$sql = "SHOW TABLES FROM `".$this->database."`";
 
-		if ($prefix_limit !== FALSE AND $this->dbprefix != '')
+		if ($prefix_limit !== FALSE AND $this->dbprefix !== '')
 		{
 			//$sql .= " LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
 			return FALSE; // not currently supported
diff --git a/system/database/drivers/odbc/odbc_forge.php b/system/database/drivers/odbc/odbc_forge.php
index d59b8a9..ce7a1d2 100644
--- a/system/database/drivers/odbc/odbc_forge.php
+++ b/system/database/drivers/odbc/odbc_forge.php
@@ -163,14 +163,14 @@
 		$sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name);
 
 		// DROP has everything it needs now.
-		if ($alter_type == 'DROP')
+		if ($alter_type === 'DROP')
 		{
 			return $sql;
 		}
 
 		$sql .= " $column_definition";
 
-		if ($default_value != '')
+		if ($default_value !== '')
 		{
 			$sql .= " DEFAULT \"$default_value\"";
 		}
@@ -184,7 +184,7 @@
 			$sql .= ' NOT NULL';
 		}
 
-		if ($after_field != '')
+		if ($after_field !== '')
 		{
 			return $sql.' AFTER '.$this->db->protect_identifiers($after_field);
 		}
diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php
index ec7f3e1..dbbcda3 100644
--- a/system/database/drivers/pdo/pdo_driver.php
+++ b/system/database/drivers/pdo/pdo_driver.php
@@ -65,7 +65,7 @@
 	{
 		parent::__construct($params);
 
-		if (preg_match('/([^;]+):/', $this->dsn, $match) && count($match) == 2)
+		if (preg_match('/([^;]+):/', $this->dsn, $match) && count($match) === 2)
 		{
 			// If there is a minimum valid dsn string pattern found, we're done
 			// This is for general PDO users, who tend to have a full DSN string.
@@ -418,12 +418,12 @@
 	 */
 	protected function _list_tables($prefix_limit = FALSE)
 	{
-		if ($this->pdodriver == 'pgsql')
+		if ($this->pdodriver === 'pgsql')
 		{
 			// Analog function to show all tables in postgre
 			$sql = "SELECT * FROM information_schema.tables WHERE table_schema = 'public'";
 		}
-		elseif ($this->pdodriver == 'sqlite')
+		elseif ($this->pdodriver === 'sqlite')
 		{
 			// Analog function to show all tables in sqlite
 			$sql = "SELECT name FROM sqlite_master WHERE type='table' AND name NOT LIKE 'sqlite_%'";
@@ -433,7 +433,7 @@
 			$sql = 'SHOW TABLES FROM '.$this->escape_identifiers($this->database);
 		}
 
-		if ($prefix_limit !== FALSE AND $this->dbprefix != '')
+		if ($prefix_limit !== FALSE AND $this->dbprefix !== '')
 		{
 			return FALSE;
 		}
@@ -468,17 +468,17 @@
 	 */
 	protected function _field_data($table)
 	{
-		if ($this->pdodriver == 'mysql' or $this->pdodriver == 'pgsql')
+		if ($this->pdodriver === 'mysql' or $this->pdodriver === 'pgsql')
 		{
 			// Analog function for mysql and postgre
 			return 'SELECT * FROM '.$this->escape_identifiers($table).' LIMIT 1';
 		}
-		elseif ($this->pdodriver == 'oci')
+		elseif ($this->pdodriver === 'oci')
 		{
 			// Analog function for oci
 			return 'SELECT * FROM '.$this->escape_identifiers($table).' WHERE ROWNUM <= 1';
 		}
-		elseif ($this->pdodriver == 'sqlite')
+		elseif ($this->pdodriver === 'sqlite')
 		{
 			// Analog function for sqlite
 			return 'PRAGMA table_info('.$this->escape_identifiers($table).')';
@@ -552,7 +552,7 @@
 	protected function _update_batch($table, $values, $index, $where = NULL)
 	{
 		$ids   = array();
-		$where = ($where != '' && count($where) >=1) ? implode(" ", $where).' AND ' : '';
+		$where = ($where !== '' && count($where) >=1) ? implode(" ", $where).' AND ' : '';
 
 		foreach ($values as $key => $val)
 		{
@@ -560,7 +560,7 @@
 
 			foreach (array_keys($val) as $field)
 			{
-				if ($field != $index)
+				if ($field !== $index)
 				{
 					$final[$field][] =  'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field];
 				}
@@ -620,9 +620,9 @@
 	 */
 	protected function _limit($sql, $limit, $offset)
 	{
-		if ($this->pdodriver == 'cubrid' OR $this->pdodriver == 'sqlite')
+		if ($this->pdodriver === 'cubrid' OR $this->pdodriver === 'sqlite')
 		{
-			$offset = ($offset == 0) ? '' : $offset.', ';
+			$offset = ($offset === 0) ? '' : $offset.', ';
 
 			return $sql.'LIMIT '.$offset.$limit;
 		}
diff --git a/system/database/drivers/pdo/pdo_forge.php b/system/database/drivers/pdo/pdo_forge.php
index ca8657a..aee8f71 100644
--- a/system/database/drivers/pdo/pdo_forge.php
+++ b/system/database/drivers/pdo/pdo_forge.php
@@ -80,7 +80,7 @@
 				if (array_key_exists('CONSTRAINT', $attributes))
 				{
 					// Exception for Postgre numeric which not too happy with constraint within those type
-					if ( ! ($this->db->pdodriver == 'pgsql' && in_array($attributes['TYPE'], $numeric)))
+					if ( ! ($this->db->pdodriver === 'pgsql' && in_array($attributes['TYPE'], $numeric)))
 					{
 						$sql .= '('.$attributes['CONSTRAINT'].')';
 					}
@@ -168,14 +168,14 @@
 		$sql = 'ALTER TABLE `'.$this->db->protect_identifiers($table).'` '.$alter_type.' '.$this->db->protect_identifiers($column_name);
 
 		// DROP has everything it needs now.
-		if ($alter_type == 'DROP')
+		if ($alter_type === 'DROP')
 		{
 			return $sql;
 		}
 
 		$sql .= " $column_definition";
 
-		if ($default_value != '')
+		if ($default_value !== '')
 		{
 			$sql .= " DEFAULT \"$default_value\"";
 		}
@@ -189,7 +189,7 @@
 			$sql .= ' NOT NULL';
 		}
 
-		if ($after_field != '')
+		if ($after_field !== '')
 		{
 			return $sql.' AFTER '.$this->db->protect_identifiers($after_field);
 		}
diff --git a/system/database/drivers/postgre/postgre_driver.php b/system/database/drivers/postgre/postgre_driver.php
index c2a1884..8c51684 100644
--- a/system/database/drivers/postgre/postgre_driver.php
+++ b/system/database/drivers/postgre/postgre_driver.php
@@ -356,13 +356,13 @@
 		$table	= (func_num_args() > 0) ? func_get_arg(0) : NULL;
 		$column	= (func_num_args() > 1) ? func_get_arg(1) : NULL;
 
-		if ($table == NULL && $v >= '8.1')
+		if ($table === NULL && $v >= '8.1')
 		{
 			$sql = 'SELECT LASTVAL() AS ins_id';
 		}
-		elseif ($table != NULL)
+		elseif ($table !== NULL)
 		{
-			if ($column != NULL && $v >= '8.0')
+			if ($column !== NULL && $v >= '8.0')
 			{
 				$sql = 'SELECT pg_get_serial_sequence(\''.$table."', '".$column."') AS seq";
 				$query = $this->query($sql);
@@ -401,7 +401,7 @@
 	{
 		$sql = "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'";
 
-		if ($prefix_limit !== FALSE && $this->dbprefix != '')
+		if ($prefix_limit !== FALSE && $this->dbprefix !== '')
 		{
 			return $sql." AND table_name LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
 		}
@@ -528,7 +528,7 @@
 
 			foreach (array_keys($val) as $field)
 			{
-				if ($field != $index)
+				if ($field !== $index)
 				{
 					$final[$field][] =  'WHEN '.$val[$index].' THEN '.$val[$field];
 				}
@@ -544,7 +544,7 @@
 		}
 
 		return 'UPDATE '.$table.' SET '.substr($cases, 0, -2)
-			.' WHERE '.(($where != '' && count($where) > 0) ? implode(' ', $where).' AND ' : '')
+			.' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '')
 			.$index.' IN('.implode(',', $ids).')';
 	}
 
@@ -585,7 +585,7 @@
 	 */
 	protected function _limit($sql, $limit, $offset)
 	{
-		return $sql.' LIMIT '.$limit.($offset == 0 ? '' : ' OFFSET '.$offset);
+		return $sql.' LIMIT '.$limit.($offset === 0 ? '' : ' OFFSET '.$offset);
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/postgre/postgre_forge.php b/system/database/drivers/postgre/postgre_forge.php
index 94c97af..af1c45f 100644
--- a/system/database/drivers/postgre/postgre_forge.php
+++ b/system/database/drivers/postgre/postgre_forge.php
@@ -214,7 +214,7 @@
  		}
 
  		return $sql.$this->_process_fields($fields)
-			.($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : '');
+			.($after_field !== '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : '');
  	}
 
 }
diff --git a/system/database/drivers/sqlite/sqlite_driver.php b/system/database/drivers/sqlite/sqlite_driver.php
index d8b869c..e502390 100644
--- a/system/database/drivers/sqlite/sqlite_driver.php
+++ b/system/database/drivers/sqlite/sqlite_driver.php
@@ -279,7 +279,7 @@
 	{
 		$sql = "SELECT name from sqlite_master WHERE type='table'";
 
-		if ($prefix_limit !== FALSE AND $this->dbprefix != '')
+		if ($prefix_limit !== FALSE AND $this->dbprefix !== '')
 		{
 			$sql .= " AND 'name' LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr);
 		}
@@ -404,7 +404,7 @@
 	 */
 	protected function _limit($sql, $limit, $offset)
 	{
-		if ($offset == 0)
+		if ($offset === 0)
 		{
 			$offset = '';
 		}
diff --git a/system/database/drivers/sqlite/sqlite_forge.php b/system/database/drivers/sqlite/sqlite_forge.php
index dd6f0f7..35be1b7 100644
--- a/system/database/drivers/sqlite/sqlite_forge.php
+++ b/system/database/drivers/sqlite/sqlite_forge.php
@@ -194,7 +194,7 @@
 		$sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name);
 
 		// DROP has everything it needs now.
-		if ($alter_type == 'DROP')
+		if ($alter_type === 'DROP')
 		{
 			// SQLite does not support dropping columns
 			// http://www.sqlite.org/omitted.html
@@ -204,7 +204,7 @@
 
 		$sql .= " $column_definition";
 
-		if ($default_value != '')
+		if ($default_value !== '')
 		{
 			$sql .= " DEFAULT \"$default_value\"";
 		}
@@ -218,7 +218,7 @@
 			$sql .= ' NOT NULL';
 		}
 
-		if ($after_field != '')
+		if ($after_field !== '')
 		{
 			return $sql.' AFTER '.$this->db->protect_identifiers($after_field);
 		}
diff --git a/system/database/drivers/sqlite3/sqlite3_driver.php b/system/database/drivers/sqlite3/sqlite3_driver.php
index ea4cf2d..ea7e6d4 100644
--- a/system/database/drivers/sqlite3/sqlite3_driver.php
+++ b/system/database/drivers/sqlite3/sqlite3_driver.php
@@ -255,7 +255,7 @@
 	protected function _list_tables($prefix_limit = FALSE)
 	{
 		return 'SELECT "NAME" FROM "SQLITE_MASTER" WHERE "TYPE" = \'table\''
-			.(($prefix_limit !== FALSE && $this->dbprefix != '')
+			.(($prefix_limit !== FALSE && $this->dbprefix !== '')
 				? ' AND "NAME" LIKE \''.$this->escape_like_str($this->dbprefix).'%\' '.sprintf($this->_like_escape_str, $this->_like_escape_chr)
 				: '');
 	}
diff --git a/system/database/drivers/sqlite3/sqlite3_forge.php b/system/database/drivers/sqlite3/sqlite3_forge.php
index 20f1e6f..0a5dc92 100644
--- a/system/database/drivers/sqlite3/sqlite3_forge.php
+++ b/system/database/drivers/sqlite3/sqlite3_forge.php
@@ -184,7 +184,7 @@
 
 		return 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name)
 			.' '.$column_definition
-			.($default_value != '' ? ' DEFAULT '.$default_value : '')
+			.($default_value !== '' ? ' DEFAULT '.$default_value : '')
 			// If NOT NULL is specified, the field must have a DEFAULT value other than NULL
 			.(($null !== NULL && $default_value !== 'NULL') ? ' NOT NULL' : ' NULL');
 	}
diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index c817c2c..1529b2a 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -155,21 +155,21 @@
 		$sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name);
 
 		// DROP has everything it needs now.
-		if ($alter_type == 'DROP')
+		if ($alter_type === 'DROP')
 		{
 			return $sql;
 		}
 
 		$sql .= ' '.$column_definition;
 
-		if ($default_value != '')
+		if ($default_value !== '')
 		{
 			$sql .= " DEFAULT '".$default_value."'";
 		}
 
 		$sql .= ($null === NULL) ? ' NULL' : ' NOT NULL';
 
-		if ($after_field != '')
+		if ($after_field !== '')
 		{
 			return $sql.' AFTER '.$this->db->protect_identifiers($after_field);
 		}