system/libraries/Profiler.php - code-igniter-v3-giggi - Gitiles

 <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.1.6 or newer
  *
  * NOTICE OF LICENSE
  *
  * Licensed under the Open Software License version 3.0
  *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
  * http://opensource.org/licenses/OSL-3.0
  * If you did not receive a copy of the license and are unable to obtain it
  * through the world wide web, please send an email to
  * licensing@ellislab.com so we can send you a copy immediately.
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
  * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
  * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
  * @link		http://codeigniter.com
  * @since		Version 1.0
  * @filesource
  */

 // ------------------------------------------------------------------------

 /**
  * CodeIgniter Profiler Class
  *
  * This class enables you to display benchmark, query, and other data
  * in order to help with debugging and optimization.
  *
  * Note: At some point it would be good to move all the HTML in this class
  * into a set of template files in order to allow customization.
  *
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Libraries
  * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/general/profiling.html
  */
 class CI_Profiler {

 	protected $_available_sections = array(
 										'benchmarks',
 										'get',
 										'memory_usage',
 										'post',
 										'uri_string',
 										'controller_info',
 										'queries',
 										'http_headers',
 										'session_data',
 										'config'
 										);

 	protected $_query_toggle_count = 25;

 	protected $CI;

 	// --------------------------------------------------------------------

 	public function __construct($config = array())
 	{
 		$this->CI =& get_instance();
 		$this->CI->load->language('profiler');

 		if (isset($config['query_toggle_count']))
 		{
 			$this->_query_toggle_count = (int) $config['query_toggle_count'];
 			unset($config['query_toggle_count']);
 		}

 		// default all sections to display
 		foreach ($this->_available_sections as $section)
 		{
 			if ( ! isset($config[$section]))
 			{
 				$this->_compile_{$section} = TRUE;
 			}
 		}

 		$this->set_sections($config);
 	}

 	// --------------------------------------------------------------------

 	/**
 	 * Set Sections
 	 *
 	 * Sets the private _compile_* properties to enable/disable Profiler sections
 	 *
 	 * @param	mixed
 	 * @return	void
 	 */
 	public function set_sections($config)
 	{
 		foreach ($config as $method => $enable)
 		{
 			if (in_array($method, $this->_available_sections))
 			{
 				$this->_compile_{$method} = ($enable !== FALSE) ? TRUE : FALSE;
 			}
 		}
 	}

 	// --------------------------------------------------------------------

 	/**
 	 * Auto Profiler
 	 *
 	 * This function cycles through the entire array of mark points and
 	 * matches any two points that are named identically (ending in "_start"
 	 * and "_end" respectively).  It then compiles the execution times for
 	 * all points and returns it as an array
 	 *
 	 * @return	array
 	 */
 	protected function _compile_benchmarks()
 	{
 		$profile = array();
 		foreach ($this->CI->benchmark->marker as $key => $val)
 		{
 			// We match the "end" marker so that the list ends
 			// up in the order that it was defined
 			if (preg_match("/(.+?)_end/i", $key, $match))
 			{
 				if (isset($this->CI->benchmark->marker[$match[1].'_end']) AND isset($this->CI->benchmark->marker[$match[1].'_start']))
 				{
 					$profile[$match[1]] = $this->CI->benchmark->elapsed_time($match[1].'_start', $key);
 				}
 			}
 		}

 		// Build a table containing the profile data.
 		// Note: At some point we should turn this into a template that can
 		// be modified.  We also might want to make this data available to be logged

 		$output  = "\n\n";
 		$output .= '<fieldset id="ci_profiler_benchmarks" style="border:1px solid #900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#900;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_benchmarks').'&nbsp;&nbsp;</legend>';
 		$output .= "\n";
 		$output .= "\n\n<table style='width:100%'>\n";

 		foreach ($profile as $key => $val)
 		{
 			$key = ucwords(str_replace(array('_', '-'), ' ', $key));
 			$output .= "<tr><td style='padding:5px;width:50%;color:#000;font-weight:bold;background-color:#ddd;'>".$key."&nbsp;&nbsp;</td><td style='padding:5px;width:50%;color:#900;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";
 		}

 		$output .= "</table>\n";
 		$output .= "</fieldset>";

 		return $output;
 	}

 	// --------------------------------------------------------------------

 	/**
 	 * Compile Queries
 	 *
 	 * @return	string
 	 */
 	protected function _compile_queries()
 	{
 		$dbs = array();

 		// Let's determine which databases are currently connected to
 		foreach (get_object_vars($this->CI) as $CI_object)
 		{
 			if (is_object($CI_object) && is_subclass_of(get_class($CI_object), 'CI_DB') )
 			{
 				$dbs[] = $CI_object;
 			}
 		}

 		if (count($dbs) == 0)
 		{
 			$output  = "\n\n";
 			$output .= '<fieldset id="ci_profiler_queries" style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 			$output .= "\n";
 			$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').'&nbsp;&nbsp;</legend>';
 			$output .= "\n";
 			$output .= "\n\n<table style='border:none; width:100%;'>\n";
 			$output .="<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px'>".$this->CI->lang->line('profiler_no_db')."</td></tr>\n";
 			$output .= "</table>\n";
 			$output .= "</fieldset>";

 			return $output;
 		}

 		// Load the text helper so we can highlight the SQL
 		$this->CI->load->helper('text');

 		// Key words we want bolded
 		$highlight = array('SELECT', 'DISTINCT', 'FROM', 'WHERE', 'AND', 'LEFT&nbsp;JOIN', 'ORDER&nbsp;BY', 'GROUP&nbsp;BY', 'LIMIT', 'INSERT', 'INTO', 'VALUES', 'UPDATE', 'OR&nbsp;', 'HAVING', 'OFFSET', 'NOT&nbsp;IN', 'IN', 'LIKE', 'NOT&nbsp;LIKE', 'COUNT', 'MAX', 'MIN', 'ON', 'AS', 'AVG', 'SUM', '(', ')');

 		$output  = "\n\n";

 		$count = 0;

 		foreach ($dbs as $db)
 		{
 			$count++;

 			$hide_queries = (count($db->queries) > $this->_query_toggle_count) ? ' display:none' : '';

 			$show_hide_js = '(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_queries_db_'.$count.'\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_hide').'\'?\''.$this->CI->lang->line('profiler_section_show').'\':\''.$this->CI->lang->line('profiler_section_hide').'\';">'.$this->CI->lang->line('profiler_section_hide').'</span>)';

 			if ($hide_queries != '')
 			{
 				$show_hide_js = '(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_queries_db_'.$count.'\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)';
 			}

 			$output .= '<fieldset style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 			$output .= "\n";
 			$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_database').':&nbsp; '.$db->database.'&nbsp;&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').': '.count($db->queries).'&nbsp;&nbsp;'.$show_hide_js.'</legend>';
 			$output .= "\n";
 			$output .= "\n\n<table style='width:100%;{$hide_queries}' id='ci_profiler_queries_db_{$count}'>\n";

 			if (count($db->queries) == 0)
 			{
 				$output .= "<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px;'>".$this->CI->lang->line('profiler_no_queries')."</td></tr>\n";
 			}
 			else
 			{
 				foreach ($db->queries as $key => $val)
 				{
 					$time = number_format($db->query_times[$key], 4);

 					$val = highlight_code($val, ENT_QUOTES);

 					foreach ($highlight as $bold)
 					{
 						$val = str_replace($bold, '<strong>'.$bold.'</strong>', $val);
 					}

 					$output .= "<tr><td style='padding:5px; vertical-align: top;width:1%;color:#900;font-weight:normal;background-color:#ddd;'>".$time."&nbsp;&nbsp;</td><td style='padding:5px; color:#000;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";
 				}
 			}

 			$output .= "</table>\n";
 			$output .= "</fieldset>";

 		}

 		return $output;
 	}


 	// --------------------------------------------------------------------

 	/**
 	 * Compile $_GET Data
 	 *
 	 * @return	string
 	 */
 	protected function _compile_get()
 	{
 		$output  = "\n\n";
 		$output .= '<fieldset id="ci_profiler_get" style="border:1px solid #cd6e00;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#cd6e00;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_get_data').'&nbsp;&nbsp;</legend>';
 		$output .= "\n";

 		if (count($_GET) == 0)
 		{
 			$output .= "<div style='color:#cd6e00;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_get')."</div>";
 		}
 		else
 		{
 			$output .= "\n\n<table style='width:100%; border:none'>\n";

 			foreach ($_GET as $key => $val)
 			{
 				if ( ! is_numeric($key))
 				{
 					$key = "'".$key."'";
 				}

 				$output .= "<tr><td style='width:50%;color:#000;background-color:#ddd;padding:5px'>&#36;_GET[".$key."]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#cd6e00;font-weight:normal;background-color:#ddd;'>";
 				if (is_array($val))
 				{
 					$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, true))) . "</pre>";
 				}
 				else
 				{
 					$output .= htmlspecialchars(stripslashes($val));
 				}
 				$output .= "</td></tr>\n";
 			}

 			$output .= "</table>\n";
 		}
 		$output .= "</fieldset>";

 		return $output;
 	}

 	// --------------------------------------------------------------------

 	/**
 	 * Compile $_POST Data
 	 *
 	 * @return	string
 	 */
 	protected function _compile_post()
 	{
 		$output  = "\n\n";
 		$output .= '<fieldset id="ci_profiler_post" style="border:1px solid #009900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#009900;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_post_data').'&nbsp;&nbsp;</legend>';
 		$output .= "\n";

 		if (count($_POST) == 0)
 		{
 			$output .= "<div style='color:#009900;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_post')."</div>";
 		}
 		else
 		{
 			$output .= "\n\n<table style='width:100%'>\n";

 			foreach ($_POST as $key => $val)
 			{
 				if ( ! is_numeric($key))
 				{
 					$key = "'".$key."'";
 				}

 				$output .= "<tr><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>&#36;_POST[".$key."]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#009900;font-weight:normal;background-color:#ddd;'>";
 				if (is_array($val))
 				{
 					$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, TRUE))) . "</pre>";
 				}
 				else
 				{
 					$output .= htmlspecialchars(stripslashes($val));
 				}
 				$output .= "</td></tr>\n";
 			}

 			$output .= "</table>\n";
 		}
 		$output .= "</fieldset>";

 		return $output;
 	}

 	// --------------------------------------------------------------------

 	/**
 	 * Show query string
 	 *
 	 * @return	string
 	 */
 	protected function _compile_uri_string()
 	{
 		$output  = "\n\n";
 		$output .= '<fieldset id="ci_profiler_uri_string" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_uri_string').'&nbsp;&nbsp;</legend>';
 		$output .= "\n";

 		if ($this->CI->uri->uri_string == '')
 		{
 			$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_uri')."</div>";
 		}
 		else
 		{
 			$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->uri->uri_string."</div>";
 		}

 		$output .= "</fieldset>";

 		return $output;
 	}

 	// --------------------------------------------------------------------

 	/**
 	 * Show the controller and function that were called
 	 *
 	 * @return	string
 	 */
 	protected function _compile_controller_info()
 	{
 		$output  = "\n\n";
 		$output .= '<fieldset id="ci_profiler_controller_info" style="border:1px solid #995300;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#995300;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_controller_info').'&nbsp;&nbsp;</legend>';
 		$output .= "\n";

 		$output .= "<div style='color:#995300;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->router->fetch_class()."/".$this->CI->router->fetch_method()."</div>";

 		$output .= "</fieldset>";

 		return $output;
 	}

 	// --------------------------------------------------------------------

 	/**
 	 * Compile memory usage
 	 *
 	 * Display total used memory
 	 *
 	 * @return	string
 	 */
 	protected function _compile_memory_usage()
 	{
 		$output  = "\n\n";
 		$output .= '<fieldset id="ci_profiler_memory_usage" style="border:1px solid #5a0099;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#5a0099;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_memory_usage').'&nbsp;&nbsp;</legend>';
 		$output .= "\n";

 		if (function_exists('memory_get_usage') && ($usage = memory_get_usage()) != '')
 		{
 			$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".number_format($usage).' bytes</div>';
 		}
 		else
 		{
 			$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_memory')."</div>";
 		}

 		$output .= "</fieldset>";

 		return $output;
 	}

 	// --------------------------------------------------------------------

 	/**
 	 * Compile header information
 	 *
 	 * Lists HTTP headers
 	 *
 	 * @return	string
 	 */
 	protected function _compile_http_headers()
 	{
 		$output  = "\n\n";
 		$output .= '<fieldset id="ci_profiler_http_headers" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_headers').'&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_httpheaders_table\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>';
 		$output .= "\n";

 		$output .= "\n\n<table style='width:100%;display:none' id='ci_profiler_httpheaders_table'>\n";

 		foreach (array('HTTP_ACCEPT', 'HTTP_USER_AGENT', 'HTTP_CONNECTION', 'SERVER_PORT', 'SERVER_NAME', 'REMOTE_ADDR', 'SERVER_SOFTWARE', 'HTTP_ACCEPT_LANGUAGE', 'SCRIPT_NAME', 'REQUEST_METHOD',' HTTP_HOST', 'REMOTE_HOST', 'CONTENT_TYPE', 'SERVER_PROTOCOL', 'QUERY_STRING', 'HTTP_ACCEPT_ENCODING', 'HTTP_X_FORWARDED_FOR') as $header)
 		{
 			$val = (isset($_SERVER[$header])) ? $_SERVER[$header] : '';
 			$output .= "<tr><td style='vertical-align: top;width:50%;padding:5px;color:#900;background-color:#ddd;'>".$header."&nbsp;&nbsp;</td><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>".$val."</td></tr>\n";
 		}

 		$output .= "</table>\n";
 		$output .= "</fieldset>";

 		return $output;
 	}

 	// --------------------------------------------------------------------

 	/**
 	 * Compile config information
 	 *
 	 * Lists developer config variables
 	 *
 	 * @return	string
 	 */
 	protected function _compile_config()
 	{
 		$output  = "\n\n";
 		$output .= '<fieldset id="ci_profiler_config" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= "\n";
 		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_config').'&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_config_table\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>';
 		$output .= "\n";

 		$output .= "\n\n<table style='width:100%; display:none' id='ci_profiler_config_table'>\n";

 		foreach ($this->CI->config->config as $config=>$val)
 		{
 			if (is_array($val))
 			{
 				$val = print_r($val, TRUE);
 			}

 			$output .= "<tr><td style='padding:5px; vertical-align: top;color:#900;background-color:#ddd;'>".$config."&nbsp;&nbsp;</td><td style='padding:5px; color:#000;background-color:#ddd;'>".htmlspecialchars($val)."</td></tr>\n";
 		}

 		$output .= "</table>\n";
 		$output .= "</fieldset>";

 		return $output;
 	}

 	// --------------------------------------------------------------------

 	/**
 	 * Compile session userdata
 	 *
 	 * @return 	string
 	 */
 	protected function _compile_session_data()
 	{
 		if ( ! isset($this->CI->session))
 		{
 			return;
 		}

 		$output = '<fieldset id="ci_profiler_csession" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
 		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_session_data').'&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_session_data\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>';
 		$output .= "<table style='width:100%;display:none' id='ci_profiler_session_data'>";

 		foreach ($this->CI->session->all_userdata() as $key => $val)
 		{
 			if (is_array($val) || is_object($val))
 			{
 				$val = print_r($val, TRUE);
 			}

 			$output .= "<tr><td style='padding:5px; vertical-align: top;color:#900;background-color:#ddd;'>".$key."&nbsp;&nbsp;</td><td style='padding:5px; color:#000;background-color:#ddd;'>".htmlspecialchars($val)."</td></tr>\n";
 		}

 		$output .= '</table>';
 		$output .= "</fieldset>";
 		return $output;
 	}

 	// --------------------------------------------------------------------

 	/**
 	 * Run the Profiler
 	 *
 	 * @return	string
 	 */
 	public function run()
 	{
 		$output = "<div id='codeigniter_profiler' style='clear:both;background-color:#fff;padding:10px;'>";
 		$fields_displayed = 0;

 		foreach ($this->_available_sections as $section)
 		{
 			if ($this->_compile_{$section} !== FALSE)
 			{
 				$func = "_compile_{$section}";
 				$output .= $this->{$func}();
 				$fields_displayed++;
 			}
 		}

 		if ($fields_displayed == 0)
 		{
 			$output .= '<p style="border:1px solid #5a0099;padding:10px;margin:20px 0;background-color:#eee">'.$this->CI->lang->line('profiler_no_profiles').'</p>';
 		}

 		$output .= '</div>';

 		return $output;
 	}
 }

 // END CI_Profiler class

 /* End of file Profiler.php */
 /* Location: ./system/libraries/Profiler.php */
	<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
	/**
	* CodeIgniter
	*
	* An open source application development framework for PHP 5.1.6 or newer
	*
	* NOTICE OF LICENSE
	*
	* Licensed under the Open Software License version 3.0
	*
	* This source file is subject to the Open Software License (OSL 3.0) that is
	* bundled with this package in the files license.txt / license.rst. It is
	* also available through the world wide web at this URL:
	* http://opensource.org/licenses/OSL-3.0
	* If you did not receive a copy of the license and are unable to obtain it
	* through the world wide web, please send an email to
	* licensing@ellislab.com so we can send you a copy immediately.
	*
	* @package CodeIgniter
	* @author EllisLab Dev Team
	* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
	* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
	* @link http://codeigniter.com
	* @since Version 1.0
	* @filesource
	*/

	// ------------------------------------------------------------------------

	/**
	* CodeIgniter Profiler Class
	*
	* This class enables you to display benchmark, query, and other data
	* in order to help with debugging and optimization.
	*
	* Note: At some point it would be good to move all the HTML in this class
	* into a set of template files in order to allow customization.
	*
	* @package CodeIgniter
	* @subpackage Libraries
	* @category Libraries
	* @author EllisLab Dev Team
	* @link http://codeigniter.com/user_guide/general/profiling.html
	*/
	class CI_Profiler {

	protected $_available_sections = array(
	'benchmarks',
	'get',
	'memory_usage',
	'post',
	'uri_string',
	'controller_info',
	'queries',
	'http_headers',
	'session_data',
	'config'
	);

	protected $_query_toggle_count = 25;

	protected $CI;

	// --------------------------------------------------------------------

	public function __construct($config = array())
	{
	$this->CI =& get_instance();
	$this->CI->load->language('profiler');

	if (isset($config['query_toggle_count']))
	{
	$this->_query_toggle_count = (int) $config['query_toggle_count'];
	unset($config['query_toggle_count']);
	}

	// default all sections to display
	foreach ($this->_available_sections as $section)
	{
	if ( ! isset($config[$section]))
	{
	$this->_compile_{$section} = TRUE;
	}
	}

	$this->set_sections($config);
	}

	// --------------------------------------------------------------------

	/**
	* Set Sections
	*
	* Sets the private _compile_* properties to enable/disable Profiler sections
	*
	* @param mixed
	* @return void
	*/
	public function set_sections($config)
	{
	foreach ($config as $method => $enable)
	{
	if (in_array($method, $this->_available_sections))
	{
	$this->_compile_{$method} = ($enable !== FALSE) ? TRUE : FALSE;
	}
	}
	}

	// --------------------------------------------------------------------

	/**
	* Auto Profiler
	*
	* This function cycles through the entire array of mark points and
	* matches any two points that are named identically (ending in "_start"
	* and "_end" respectively). It then compiles the execution times for
	* all points and returns it as an array
	*
	* @return array
	*/
	protected function _compile_benchmarks()
	{
	$profile = array();
	foreach ($this->CI->benchmark->marker as $key => $val)
	{
	// We match the "end" marker so that the list ends
	// up in the order that it was defined
	if (preg_match("/(.+?)_end/i", $key, $match))
	{
	if (isset($this->CI->benchmark->marker[$match[1].'_end']) AND isset($this->CI->benchmark->marker[$match[1].'_start']))
	{
	$profile[$match[1]] = $this->CI->benchmark->elapsed_time($match[1].'_start', $key);
	}
	}
	}

	// Build a table containing the profile data.
	// Note: At some point we should turn this into a template that can
	// be modified. We also might want to make this data available to be logged

	$output = "\n\n";
	$output .= '<fieldset id="ci_profiler_benchmarks" style="border:1px solid #900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
	$output .= "\n";
	$output .= '<legend style="color:#900;">  '.$this->CI->lang->line('profiler_benchmarks').'  </legend>';
	$output .= "\n";
	$output .= "\n\n<table style='width:100%'>\n";

	foreach ($profile as $key => $val)
	{
	$key = ucwords(str_replace(array('_', '-'), ' ', $key));
	$output .= "<tr><td style='padding:5px;width:50%;color:#000;font-weight:bold;background-color:#ddd;'>".$key."  </td><td style='padding:5px;width:50%;color:#900;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";
	}

	$output .= "</table>\n";
	$output .= "</fieldset>";

	return $output;
	}

	// --------------------------------------------------------------------

	/**
	* Compile Queries
	*
	* @return string
	*/
	protected function _compile_queries()
	{
	$dbs = array();

	// Let's determine which databases are currently connected to
	foreach (get_object_vars($this->CI) as $CI_object)
	{
	if (is_object($CI_object) && is_subclass_of(get_class($CI_object), 'CI_DB') )
	{
	$dbs[] = $CI_object;
	}
	}

	if (count($dbs) == 0)
	{
	$output = "\n\n";
	$output .= '<fieldset id="ci_profiler_queries" style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
	$output .= "\n";
	$output .= '<legend style="color:#0000FF;">  '.$this->CI->lang->line('profiler_queries').'  </legend>';
	$output .= "\n";
	$output .= "\n\n<table style='border:none; width:100%;'>\n";
	$output .="<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px'>".$this->CI->lang->line('profiler_no_db')."</td></tr>\n";
	$output .= "</table>\n";
	$output .= "</fieldset>";

	return $output;
	}

	// Load the text helper so we can highlight the SQL
	$this->CI->load->helper('text');

	// Key words we want bolded
	$highlight = array('SELECT', 'DISTINCT', 'FROM', 'WHERE', 'AND', 'LEFT JOIN', 'ORDER BY', 'GROUP BY', 'LIMIT', 'INSERT', 'INTO', 'VALUES', 'UPDATE', 'OR ', 'HAVING', 'OFFSET', 'NOT IN', 'IN', 'LIKE', 'NOT LIKE', 'COUNT', 'MAX', 'MIN', 'ON', 'AS', 'AVG', 'SUM', '(', ')');

	$output = "\n\n";

	$count = 0;

	foreach ($dbs as $db)
	{
	$count++;

	$hide_queries = (count($db->queries) > $this->_query_toggle_count) ? ' display:none' : '';

	$show_hide_js = '(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_queries_db_'.$count.'\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_hide').'\'?\''.$this->CI->lang->line('profiler_section_show').'\':\''.$this->CI->lang->line('profiler_section_hide').'\';">'.$this->CI->lang->line('profiler_section_hide').'</span>)';

	if ($hide_queries != '')
	{
	$show_hide_js = '(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_queries_db_'.$count.'\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)';
	}

	$output .= '<fieldset style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
	$output .= "\n";
	$output .= '<legend style="color:#0000FF;">  '.$this->CI->lang->line('profiler_database').':  '.$db->database.'   '.$this->CI->lang->line('profiler_queries').': '.count($db->queries).'  '.$show_hide_js.'</legend>';
	$output .= "\n";
	$output .= "\n\n<table style='width:100%;{$hide_queries}' id='ci_profiler_queries_db_{$count}'>\n";

	if (count($db->queries) == 0)
	{
	$output .= "<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px;'>".$this->CI->lang->line('profiler_no_queries')."</td></tr>\n";
	}
	else
	{
	foreach ($db->queries as $key => $val)
	{
	$time = number_format($db->query_times[$key], 4);

	$val = highlight_code($val, ENT_QUOTES);

	foreach ($highlight as $bold)
	{
	$val = str_replace($bold, '<strong>'.$bold.'</strong>', $val);
	}

	$output .= "<tr><td style='padding:5px; vertical-align: top;width:1%;color:#900;font-weight:normal;background-color:#ddd;'>".$time."  </td><td style='padding:5px; color:#000;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";
	}
	}

	$output .= "</table>\n";
	$output .= "</fieldset>";

	}

	return $output;
	}


	// --------------------------------------------------------------------

	/**
	* Compile $_GET Data
	*
	* @return string
	*/
	protected function _compile_get()
	{
	$output = "\n\n";
	$output .= '<fieldset id="ci_profiler_get" style="border:1px solid #cd6e00;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
	$output .= "\n";
	$output .= '<legend style="color:#cd6e00;">  '.$this->CI->lang->line('profiler_get_data').'  </legend>';
	$output .= "\n";

	if (count($_GET) == 0)
	{
	$output .= "<div style='color:#cd6e00;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_get')."</div>";
	}
	else
	{
	$output .= "\n\n<table style='width:100%; border:none'>\n";

	foreach ($_GET as $key => $val)
	{
	if ( ! is_numeric($key))
	{
	$key = "'".$key."'";
	}

	$output .= "<tr><td style='width:50%;color:#000;background-color:#ddd;padding:5px'>$_GET[".$key."]   </td><td style='width:50%;padding:5px;color:#cd6e00;font-weight:normal;background-color:#ddd;'>";
	if (is_array($val))
	{
	$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, true))) . "</pre>";
	}
	else
	{
	$output .= htmlspecialchars(stripslashes($val));
	}
	$output .= "</td></tr>\n";
	}

	$output .= "</table>\n";
	}
	$output .= "</fieldset>";

	return $output;
	}

	// --------------------------------------------------------------------

	/**
	* Compile $_POST Data
	*
	* @return string
	*/
	protected function _compile_post()
	{
	$output = "\n\n";
	$output .= '<fieldset id="ci_profiler_post" style="border:1px solid #009900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
	$output .= "\n";
	$output .= '<legend style="color:#009900;">  '.$this->CI->lang->line('profiler_post_data').'  </legend>';
	$output .= "\n";

	if (count($_POST) == 0)
	{
	$output .= "<div style='color:#009900;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_post')."</div>";
	}
	else
	{
	$output .= "\n\n<table style='width:100%'>\n";

	foreach ($_POST as $key => $val)
	{
	if ( ! is_numeric($key))
	{
	$key = "'".$key."'";
	}

	$output .= "<tr><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>$_POST[".$key."]   </td><td style='width:50%;padding:5px;color:#009900;font-weight:normal;background-color:#ddd;'>";
	if (is_array($val))
	{
	$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, TRUE))) . "</pre>";
	}
	else
	{
	$output .= htmlspecialchars(stripslashes($val));
	}
	$output .= "</td></tr>\n";
	}

	$output .= "</table>\n";
	}
	$output .= "</fieldset>";

	return $output;
	}

	// --------------------------------------------------------------------

	/**
	* Show query string
	*
	* @return string
	*/
	protected function _compile_uri_string()
	{
	$output = "\n\n";
	$output .= '<fieldset id="ci_profiler_uri_string" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
	$output .= "\n";
	$output .= '<legend style="color:#000;">  '.$this->CI->lang->line('profiler_uri_string').'  </legend>';
	$output .= "\n";

	if ($this->CI->uri->uri_string == '')
	{
	$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_uri')."</div>";
	}
	else
	{
	$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->uri->uri_string."</div>";
	}

	$output .= "</fieldset>";

	return $output;
	}

	// --------------------------------------------------------------------

	/**
	* Show the controller and function that were called
	*
	* @return string
	*/
	protected function _compile_controller_info()
	{
	$output = "\n\n";
	$output .= '<fieldset id="ci_profiler_controller_info" style="border:1px solid #995300;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
	$output .= "\n";
	$output .= '<legend style="color:#995300;">  '.$this->CI->lang->line('profiler_controller_info').'  </legend>';
	$output .= "\n";

	$output .= "<div style='color:#995300;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->router->fetch_class()."/".$this->CI->router->fetch_method()."</div>";

	$output .= "</fieldset>";

	return $output;
	}

	// --------------------------------------------------------------------

	/**
	* Compile memory usage
	*
	* Display total used memory
	*
	* @return string
	*/
	protected function _compile_memory_usage()
	{
	$output = "\n\n";
	$output .= '<fieldset id="ci_profiler_memory_usage" style="border:1px solid #5a0099;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
	$output .= "\n";
	$output .= '<legend style="color:#5a0099;">  '.$this->CI->lang->line('profiler_memory_usage').'  </legend>';
	$output .= "\n";

	if (function_exists('memory_get_usage') && ($usage = memory_get_usage()) != '')
	{
	$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".number_format($usage).' bytes</div>';
	}
	else
	{
	$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_memory')."</div>";
	}

	$output .= "</fieldset>";

	return $output;
	}

	// --------------------------------------------------------------------

	/**
	* Compile header information
	*
	* Lists HTTP headers
	*
	* @return string
	*/
	protected function _compile_http_headers()
	{
	$output = "\n\n";
	$output .= '<fieldset id="ci_profiler_http_headers" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
	$output .= "\n";
	$output .= '<legend style="color:#000;">  '.$this->CI->lang->line('profiler_headers').'  (<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_httpheaders_table\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>';
	$output .= "\n";

	$output .= "\n\n<table style='width:100%;display:none' id='ci_profiler_httpheaders_table'>\n";

	foreach (array('HTTP_ACCEPT', 'HTTP_USER_AGENT', 'HTTP_CONNECTION', 'SERVER_PORT', 'SERVER_NAME', 'REMOTE_ADDR', 'SERVER_SOFTWARE', 'HTTP_ACCEPT_LANGUAGE', 'SCRIPT_NAME', 'REQUEST_METHOD',' HTTP_HOST', 'REMOTE_HOST', 'CONTENT_TYPE', 'SERVER_PROTOCOL', 'QUERY_STRING', 'HTTP_ACCEPT_ENCODING', 'HTTP_X_FORWARDED_FOR') as $header)
	{
	$val = (isset($_SERVER[$header])) ? $_SERVER[$header] : '';
	$output .= "<tr><td style='vertical-align: top;width:50%;padding:5px;color:#900;background-color:#ddd;'>".$header."  </td><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>".$val."</td></tr>\n";
	}

	$output .= "</table>\n";
	$output .= "</fieldset>";

	return $output;
	}

	// --------------------------------------------------------------------

	/**
	* Compile config information
	*
	* Lists developer config variables
	*
	* @return string
	*/
	protected function _compile_config()
	{
	$output = "\n\n";
	$output .= '<fieldset id="ci_profiler_config" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
	$output .= "\n";
	$output .= '<legend style="color:#000;">  '.$this->CI->lang->line('profiler_config').'  (<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_config_table\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>';
	$output .= "\n";

	$output .= "\n\n<table style='width:100%; display:none' id='ci_profiler_config_table'>\n";

	foreach ($this->CI->config->config as $config=>$val)
	{
	if (is_array($val))
	{
	$val = print_r($val, TRUE);
	}

	$output .= "<tr><td style='padding:5px; vertical-align: top;color:#900;background-color:#ddd;'>".$config."  </td><td style='padding:5px; color:#000;background-color:#ddd;'>".htmlspecialchars($val)."</td></tr>\n";
	}

	$output .= "</table>\n";
	$output .= "</fieldset>";

	return $output;
	}

	// --------------------------------------------------------------------

	/**
	* Compile session userdata
	*
	* @return string
	*/
	protected function _compile_session_data()
	{
	if ( ! isset($this->CI->session))
	{
	return;
	}

	$output = '<fieldset id="ci_profiler_csession" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
	$output .= '<legend style="color:#000;">  '.$this->CI->lang->line('profiler_session_data').'  (<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_session_data\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>';
	$output .= "<table style='width:100%;display:none' id='ci_profiler_session_data'>";

	foreach ($this->CI->session->all_userdata() as $key => $val)
	{
	if (is_array($val) \|\| is_object($val))
	{
	$val = print_r($val, TRUE);
	}

	$output .= "<tr><td style='padding:5px; vertical-align: top;color:#900;background-color:#ddd;'>".$key."  </td><td style='padding:5px; color:#000;background-color:#ddd;'>".htmlspecialchars($val)."</td></tr>\n";
	}

	$output .= '</table>';
	$output .= "</fieldset>";
	return $output;
	}

	// --------------------------------------------------------------------

	/**
	* Run the Profiler
	*
	* @return string
	*/
	public function run()
	{
	$output = "<div id='codeigniter_profiler' style='clear:both;background-color:#fff;padding:10px;'>";
	$fields_displayed = 0;

	foreach ($this->_available_sections as $section)
	{
	if ($this->_compile_{$section} !== FALSE)
	{
	$func = "_compile_{$section}";
	$output .= $this->{$func}();
	$fields_displayed++;
	}
	}

	if ($fields_displayed == 0)
	{
	$output .= '<p style="border:1px solid #5a0099;padding:10px;margin:20px 0;background-color:#eee">'.$this->CI->lang->line('profiler_no_profiles').'</p>';
	}

	$output .= '</div>';

	return $output;
	}
	}

	// END CI_Profiler class

	/* End of file Profiler.php */
	/* Location: ./system/libraries/Profiler.php */