19 files changed, 84 insertions, 88 deletions

diff --git a/system/database/DB.php b/system/database/DB.php
index f7476a68e..62237440f 100644
--- a/system/database/DB.php
+++ b/system/database/DB.php
@@ -24,8 +24,6 @@
  */
 function DB($params = '', $return = FALSE, $active_record = FALSE)
 {
-	$obj =& get_instance();
-
 	// Do we even need to load the database class?
 	if (class_exists('CI_DB') AND $return == FALSE AND $active_record == FALSE)
 	{
@@ -92,8 +90,9 @@ function DB($params = '', $return = FALSE, $active_record = FALSE)
 	{
 		return $DB;
 	}
-	
-	$obj->db =& $DB;
+
+	$CI =& get_instance();	
+	$CI->db =& $DB;
 }	
 
 
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index b89ebbf8d..c8a00b7b1 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -165,13 +165,13 @@ class CI_DB_driver {
 	 * @return	string		 
 	 */		
 	function load_utilities()
-	{
-		$obj =& get_instance();
-			
+	{			
 		require_once(BASEPATH.'database/DB_utility'.EXT);
 		require_once(BASEPATH.'database/drivers/'.$this->dbdriver.'/'.$this->dbdriver.'_utility'.EXT);
 		$class = 'CI_DB_'.$this->dbdriver.'_utility';
-		$obj->dbutil = new $class();
+		
+		$CI =& get_instance();
+		$CI->dbutil = new $class();
 	}
 	
 	// --------------------------------------------------------------------
diff --git a/system/database/DB_utility.php b/system/database/DB_utility.php
index 433056ff0..64d67db41 100644
--- a/system/database/DB_utility.php
+++ b/system/database/DB_utility.php
@@ -36,8 +36,8 @@ class CI_DB_utility {
 	function CI_DB_utility()
 	{
 		// Assign the main database object to $this->db
-		$obj =& get_instance();
-		$this->db =& $obj->db;
+		$CI =& get_instance();
+		$this->CI =& $obj->db;
 		
 		log_message('debug', "Database Utility Class Initialized");
 	}
@@ -286,8 +286,8 @@ class CI_DB_utility {
 		extract($params);
 			
 		// Load the xml helper
-		$obj =& get_instance();
-		$obj->load->helper('xml');
+		$CI =& get_instance();
+		$CI->load->helper('xml');
 
 		// Generate the result
 		$xml = "<{$root}/>".$newline;
@@ -391,10 +391,7 @@ class CI_DB_utility {
 		}
 
 		// ------------------------------------------------------
-		
-		// Grab the super object
-		$obj =& get_instance();
-		
+				
 		// Was a Gzip file requested?
 		if ($prefs['format'] == 'gzip')
 		{
@@ -427,9 +424,11 @@ class CI_DB_utility {
 			}
 
 			// Load the Zip class and output it
-			$obj->load->library('zip');
-			$obj->zip->add_data($prefs['filename'], $this->_backup($prefs));							
-			return $obj->zip->get_zip();
+			
+			$CI =& get_instance();
+			$CI->load->library('zip');
+			$CI->zip->add_data($prefs['filename'], $this->_backup($prefs));							
+			return $CI->zip->get_zip();
 		}
 		
 	}
diff --git a/system/libraries/Controller.php b/system/libraries/Controller.php
index 58bec841e..4b9e3e960 100644
--- a/system/libraries/Controller.php
+++ b/system/libraries/Controller.php
@@ -102,7 +102,7 @@ class Controller extends CI_Base {
 	 * Run Scaffolding
 	 *
 	 * @access	private
-	 * @return	voikd
+	 * @return	void
 	 */	
     function _ci_scaffolding()
     {
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 99de17414..23f7fe456 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -1629,10 +1629,10 @@ class CI_Email {
 	 */	
 	function _set_error_message($msg, $val = '')
 	{
-		$obj =& get_instance();
-		$obj->lang->load('email');
+		$CI =& get_instance();
+		$CI->lang->load('email');
 	
-		if (FALSE === ($line = $obj->lang->line($msg)))
+		if (FALSE === ($line = $CI->lang->line($msg)))
 		{	
 			$this->_debug_msg[] = str_replace('%s', $val, $msg)."<br />";
 		}	
diff --git a/system/libraries/Encrypt.php b/system/libraries/Encrypt.php
index 537b1ab20..2a1de6f37 100644
--- a/system/libraries/Encrypt.php
+++ b/system/libraries/Encrypt.php
@@ -66,8 +66,8 @@ class CI_Encrypt {
 				return $this->encryption_key;
 			}
 		
-			$obj =& get_instance();
-			$key = $obj->config->item('encryption_key');
+			$CI =& get_instance();
+			$key = $CI->config->item('encryption_key');
 
 			if ($key === FALSE)
 			{
diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index ca1d7478b..79b2f9c1c 100644
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -1503,22 +1503,22 @@ class CI_Image_lib {
 	 */	
 	function set_error($msg)
 	{
-		$obj =& get_instance();
-		$obj->lang->load('imglib');
+		$CI =& get_instance();
+		$CI->lang->load('imglib');
 		
 		if (is_array($msg))
 		{
 			foreach ($msg as $val)
 			{
 				
-				$msg = ($obj->lang->line($val) == FALSE) ? $val : $obj->lang->line($val);
+				$msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val);
 				$this->error_msg[] = $msg;
 				log_message('error', $msg);
 			}		
 		}
 		else
 		{
-			$msg = ($obj->lang->line($msg) == FALSE) ? $msg : $obj->lang->line($msg);
+			$msg = ($CI->lang->line($msg) == FALSE) ? $msg : $CI->lang->line($msg);
 			$this->error_msg[] = $msg;
 			log_message('error', $msg);
 		}
diff --git a/system/libraries/Language.php b/system/libraries/Language.php
index dabfd4145..00e2fb7e8 100644
--- a/system/libraries/Language.php
+++ b/system/libraries/Language.php
@@ -61,8 +61,8 @@ class CI_Language {
 		
 		if ($idiom == '')
 		{
-			$obj =& get_instance();
-			$deft_lang = $obj->config->item('language');
+			$CI =& get_instance();
+			$deft_lang = $CI->config->item('language');
 			$idiom = ($deft_lang == '') ? 'english' : $deft_lang;
 		}
 	
diff --git a/system/libraries/Model.php b/system/libraries/Model.php
index 55c995636..46f0367cb 100644
--- a/system/libraries/Model.php
+++ b/system/libraries/Model.php
@@ -49,18 +49,18 @@ class Model {
 	 */	
 	function _assign_libraries($use_reference = TRUE)
 	{
-		$obj =& get_instance();
-		foreach (get_object_vars($obj) as $key => $var)
+		$CI =& get_instance();
+		foreach (get_object_vars($CI) as $key => $var)
 		{
 			if (is_object($var) AND ! isset($this->$key))
 			{
 				if ($use_reference === TRUE)
 				{
-					$this->$key =& $obj->$key;						
+					$this->$key =& $CI->$key;						
 				}
 				else
 				{
-					$this->$key = $obj->$key;
+					$this->$key = $CI->$key;
 				}
 			}
 		}
diff --git a/system/libraries/Output.php b/system/libraries/Output.php
index 4ab5dd23c..507beab59 100644
--- a/system/libraries/Output.php
+++ b/system/libraries/Output.php
@@ -135,7 +135,7 @@ class CI_Output {
 	 */		
 	function _display($output = '')
 	{	
-		// Note:  We use globals because we can't use $obj =& get_instance() 
+		// Note:  We use globals because we can't use $CI =& get_instance() 
 		// since this function is sometimes called by the caching mechanism, 
 		// which happens before the CI super object is available.
 		global $BM, $CFG;
@@ -207,25 +207,25 @@ class CI_Output {
 		// --------------------------------------------------------------------
 
 		// Grab the super object.  We'll need it in a moment...
-		$obj =& get_instance();
+		$CI =& get_instance();
 		
 		// Do we need to generate profile data?
 		// If so, load the Profile class and run it.
 		if ($this->enable_profiler == TRUE)
 		{
-			$obj->load->library('profiler');				
+			$CI->load->library('profiler');				
 										
 			// If the output data contains closing </body> and </html> tags
 			// we will remove them and add them back after we insert the profile data
 			if (preg_match("|</body>.*?</html>|is", $output))
 			{
 				$output  = preg_replace("|</body>.*?</html>|is", '', $output);
-				$output .= $obj->profiler->run();
+				$output .= $CI->profiler->run();
 				$output .= '</body></html>';
 			}
 			else
 			{
-				$output .= $obj->profiler->run();
+				$output .= $CI->profiler->run();
 			}
 		}
 		
@@ -233,9 +233,9 @@ class CI_Output {
 
 		// Does the controller contain a function named _output()?
 		// If so send the output there.  Otherwise, echo it.
-		if (method_exists($obj, '_output'))
+		if (method_exists($CI, '_output'))
 		{
-			$obj->_output($output);
+			$CI->_output($output);
 		}
 		else
 		{
@@ -256,8 +256,8 @@ class CI_Output {
 	 */	
 	function _write_cache($output)
 	{
-		$obj =& get_instance();	
-		$path = $obj->config->item('cache_path');
+		$CI =& get_instance();	
+		$path = $CI->config->item('cache_path');
 	
 		$cache_path = ($path == '') ? BASEPATH.'cache/' : $path;
 		
@@ -266,9 +266,9 @@ class CI_Output {
 			return;
 		}
 		
-		$uri =	$obj->config->item('base_url').
-				$obj->config->item('index_page').
-				$obj->uri->uri_string();
+		$uri =	$CI->config->item('base_url').
+				$CI->config->item('index_page').
+				$CI->uri->uri_string();
 		
 		$cache_path .= md5($uri);
 
diff --git a/system/libraries/Pagination.php b/system/libraries/Pagination.php
index 867d214fc..efbe6c27f 100644
--- a/system/libraries/Pagination.php
+++ b/system/libraries/Pagination.php
@@ -122,10 +122,10 @@ class CI_Pagination {
         }
         
 		// Determine the current page number.		
-		$obj =& get_instance();	
-		if ($obj->uri->segment($this->uri_segment) != 0)
+		$CI =& get_instance();	
+		if ($CI->uri->segment($this->uri_segment) != 0)
 		{
-			$this->cur_page = $obj->uri->segment($this->uri_segment);
+			$this->cur_page = $CI->uri->segment($this->uri_segment);
 		}
 		
 		if ( ! is_numeric($this->cur_page))
diff --git a/system/libraries/Parser.php b/system/libraries/Parser.php
index 42e78b0ee..a0c9dab9e 100644
--- a/system/libraries/Parser.php
+++ b/system/libraries/Parser.php
@@ -44,8 +44,8 @@ class CI_Parser {
 	 */
 	function parse($template, $data, $return = FALSE)
 	{
-		$obj =& get_instance();
-		$template = $obj->load->view($template, $data, TRUE);
+		$CI =& get_instance();
+		$template = $CI->load->view($template, $data, TRUE);
 		
 		if ($template == '')
 		{
@@ -66,7 +66,7 @@ class CI_Parser {
 		
 		if ($return == FALSE)
 		{
-			$obj->output->final_output = $template;
+			$CI->output->final_output = $template;
 		}
 		
 		return $template;
diff --git a/system/libraries/Profiler.php b/system/libraries/Profiler.php
index d91f23193..3370c9113 100644
--- a/system/libraries/Profiler.php
+++ b/system/libraries/Profiler.php
@@ -173,9 +173,7 @@ class CI_Profiler {
 	 * @return	string
 	 */	
 	function run($output = '')
-	{	
-		$obj =& get_instance();
-		
+	{		
 		$output = '<br clear="all" />';
 		$output .= "<div style='background-color:#fff;padding:10px;'>";
 	
diff --git a/system/libraries/Unit.php b/system/libraries/Unit.php
index 0df78c253..6573f4269 100644
--- a/system/libraries/Unit.php
+++ b/system/libraries/Unit.php
@@ -171,8 +171,8 @@ class CI_Unit {
 	 */
 	function result($results = array())
 	{	
-		$obj =& get_instance();
-		$obj->load->language('unit_test');
+		$CI =& get_instance();
+		$CI->load->language('unit_test');
 		
 		if (count($results) == 0)
 		{
@@ -189,20 +189,20 @@ class CI_Unit {
 				{
 					foreach ($val as $k => $v)
 					{
-						if (FALSE !== ($line = $obj->lang->line(strtolower('ut_'.$v))))
+						if (FALSE !== ($line = $CI->lang->line(strtolower('ut_'.$v))))
 						{
 							$v = $line;
 						}				
-						$temp[$obj->lang->line('ut_'.$k)] = $v;					
+						$temp[$CI->lang->line('ut_'.$k)] = $v;					
 					}
 				}
 				else
 				{
-					if (FALSE !== ($line = $obj->lang->line(strtolower('ut_'.$val))))
+					if (FALSE !== ($line = $CI->lang->line(strtolower('ut_'.$val))))
 					{
 						$val = $line;
 					}				
-					$temp[$obj->lang->line('ut_'.$key)] = $val;
+					$temp[$CI->lang->line('ut_'.$key)] = $val;
 				}
 			}
 			
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index 37fccdfd8..13fa8acdf 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -684,8 +684,8 @@ class CI_Upload {
 
 		$data = fread($fp, filesize($file)); 
 		
-		$obj =& get_instance();	
-		$data = $obj->input->xss_clean($data);
+		$CI =& get_instance();	
+		$data = $CI->input->xss_clean($data);
 
         fwrite($fp, $data);
         flock($fp, LOCK_UN);
@@ -703,21 +703,21 @@ class CI_Upload {
 	 */	
 	function set_error($msg)
 	{
-		$obj =& get_instance();	
-		$obj->lang->load('upload');
+		$CI =& get_instance();	
+		$CI->lang->load('upload');
 		
 		if (is_array($msg))
 		{
 			foreach ($msg as $val)
 			{
-				$msg = ($obj->lang->line($val) == FALSE) ? $val : $obj->lang->line($val);				
+				$msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val);				
 				$this->error_msg[] = $msg;
 				log_message('error', $msg);
 			}		
 		}
 		else
 		{
-			$msg = ($obj->lang->line($msg) == FALSE) ? $msg : $obj->lang->line($msg);
+			$msg = ($CI->lang->line($msg) == FALSE) ? $msg : $CI->lang->line($msg);
 			$this->error_msg[] = $msg;
 			log_message('error', $msg);
 		}
diff --git a/system/libraries/Xmlrpc.php b/system/libraries/Xmlrpc.php
index 4cb16f74e..0a3dedae1 100644
--- a/system/libraries/Xmlrpc.php
+++ b/system/libraries/Xmlrpc.php
@@ -493,7 +493,7 @@ class XML_RPC_Response
 	
 	function decode($array=FALSE)
 	{
-		$obj =& get_instance();	
+		$CI =& get_instance();	
 
 		if ($array !== FALSE && is_array($array))
 		{
@@ -505,7 +505,7 @@ class XML_RPC_Response
 				}
 				else
 				{
-					$array[$key] = $obj->input->xss_clean($array[$key]);
+					$array[$key] = $CI->input->xss_clean($array[$key]);
 				}
 			}
 			
@@ -521,7 +521,7 @@ class XML_RPC_Response
 			}
 			else
 			{
-				$result = $obj->input->xss_clean($result);
+				$result = $CI->input->xss_clean($result);
 			}
 		}
 		
@@ -1107,7 +1107,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 	
 	function output_parameters($array=FALSE)
 	{
-		$obj =& get_instance();	
+		$CI =& get_instance();	
 
 		if ($array !== FALSE && is_array($array))
 		{
@@ -1119,7 +1119,7 @@ class XML_RPC_Message extends CI_Xmlrpc
 				}
 				else
 				{
-					$array[$key] = $obj->input->xss_clean($array[$key]);
+					$array[$key] = $CI->input->xss_clean($array[$key]);
 				}
 			}
 			
@@ -1139,7 +1139,7 @@ class XML_RPC_Message extends CI_Xmlrpc
     			}
     			else
     			{
-    				$parameters[] = $obj->input->xss_clean($a_param);
+    				$parameters[] = $CI->input->xss_clean($a_param);
     			}
     		}	
     	}
diff --git a/system/libraries/Xmlrpcs.php b/system/libraries/Xmlrpcs.php
index b47104857..e4d3cffde 100644
--- a/system/libraries/Xmlrpcs.php
+++ b/system/libraries/Xmlrpcs.php
@@ -318,8 +318,8 @@ class CI_Xmlrpcs extends CI_Xmlrpc
 			}
 			else
 			{
-				$obj =& get_instance();
-				return $obj->$method_parts['1']($m);
+				$CI =& get_instance();
+				return $CI->$method_parts['1']($m);
 				//$class = new $method_parts['0'];
 				//return $class->$method_parts['1']($m);
 				//return call_user_func(array(&$method_parts['0'],$method_parts['1']), $m);
diff --git a/user_guide/general/ancillary_classes.html b/user_guide/general/ancillary_classes.html
index 86e210f3f..f7c4a8697 100644
--- a/user_guide/general/ancillary_classes.html
+++ b/user_guide/general/ancillary_classes.html
@@ -86,21 +86,21 @@ If you would like to use Code Igniter's classes from within your own custom clas
 

 <p>First, assign the Code Igniter object to a variable:</p>

 

-<code>$obj =& get_instance();</code>

+<code>$CI =& get_instance();</code>

 

 <p>Once you've assigned the object to a variable, you'll use that variable <em>instead</em> of <kbd>$this</kbd>:</p>

 

 <code>

-$obj =& get_instance();<br /><br />

-$obj->load->helper('url');<br />

-$obj->load->library('session');<br />

-$obj->config->item('base_url');<br />

+$CI =& get_instance();<br /><br />

+$CI->load->helper('url');<br />

+$CI->load->library('session');<br />

+$CI->config->item('base_url');<br />

 etc.

 </code>

 

 <p class="important"><strong>Note:</strong> You'll notice that the above get_instance() function is being passed by reference:

 <br /><br />

-<var>$obj =& get_instance();</var>

+<var>$CI =& get_instance();</var>

 <br /><br />

 This is very important. Assigning by reference allows you to use the original Code Igniter object rather than creating a copy of it.</p>

 </div>

diff --git a/user_guide/general/creating_libraries.html b/user_guide/general/creating_libraries.html
index e2a57f02a..b73bfb888 100644
--- a/user_guide/general/creating_libraries.html
+++ b/user_guide/general/creating_libraries.html
@@ -184,21 +184,21 @@ If you would like to use Code Igniter's classes from within your own custom clas
 

 <p>First, assign the Code Igniter object to a variable:</p>

 

-<code>$obj =& get_instance();</code>

+<code>$CI =& get_instance();</code>

 

 <p>Once you've assigned the object to a variable, you'll use that variable <em>instead</em> of <kbd>$this</kbd>:</p>

 

 <code>

-$obj =& get_instance();<br /><br />

-$obj->load->helper('url');<br />

-$obj->load->library('session');<br />

-$obj->config->item('base_url');<br />

+$CI =& get_instance();<br /><br />

+$CI->load->helper('url');<br />

+$CI->load->library('session');<br />

+$CI->config->item('base_url');<br />

 etc.

 </code>

 

 <p class="important"><strong>Note:</strong> You'll notice that the above get_instance() function is being passed by reference:

 <br /><br />

-<var>$obj =& get_instance();</var>

+<var>$CI =& get_instance();</var>

 <br /><br />

 <kbd>This is very important.</kbd> Assigning by reference allows you to use the original Code Igniter object rather than creating a copy of it.</p>