Debugging mode for CodeIgniter?

Question

Does CodeIgniter provide debugging mode, for example, when accessing an invalid URL?

Ruby on Rails shows debugging messages when an invalid URL was specified and the controller cannot resolve it using the route map. How to enable such debugging messages in CodeIgniter?

Profiler ...

$this->output->enable_profiler(TRUE); 

... affects only individual classes, but not all routes. Therefore, debugging without a real debugging mode is a bit ... complicated. :-)

Answer 1

profiler is more a performance analysis than a debugger. The way to go is to implement the very popular xDebug using CodeIgniter .

Answer 2

 <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * Vayes HELPER * * @author Yahya A. Erturan * @copyright Copyright (c) 2013, Yahya A. Erturan * @link http://www.yahyaerturan.com * @access public */ // ------------------------------------------------------------------------ /** * vdebug() * * Debug Helper * * Functions to print/dump variables to the screen with CI style formatting * and additional debug data. * * Inspired by the works of Joost van Veen[1] and Kevin Wood-Friend[2]. * [1] http://github.com/joostvanveen/ * [2] http://github.com/kwoodfriend/ * * @author Yahya ERTURAN < [e-mail] > * @version 1.0 * @license https://github.com/yahyaerturan/codeigniter-developers-debug-helper/blob/master/LICENSE MIT License * * */ if ( ! function_exists('vdebug')) { /** * vdebug() * * @param mixed $data * @param bool $die FALSE * @param bool $add_var_dump FALSE * @param bool $add_last_query TRUE * @return void */ function vdebug($data, $die = false, $add_var_dump = false, $add_last_query = true) { $CI = &get_instance(); $CI->load->library('unit_test'); $bt = debug_backtrace(); $src = file($bt[0]["file"]); $line = $src[$bt[0]['line'] - 1]; # Match the function call and the last closing bracket preg_match('#' . __FUNCTION__ . '\((.+)\)#', $line, $match); $max = strlen($match[1]); $varname = NULL; $c = 0; for ($i = 0; $i < $max; $i++) { if ($match[1]{$i} == "(" ) $c++; elseif ($match[1]{$i} == ")" ) $c--; if ($c < 0) break; $varname .= $match[1]{$i}; } if(is_object($data)) $message = 'Variable holds an OBJECT'; elseif(is_array($data)) $message = 'Variable holds an ARRAY'; elseif(is_string($data)) $message = 'Variable holds a STRING'; elseif(is_int($data)) $message = 'Variable holds a INTEGER'; elseif(is_true($data)) $message = 'Variable holds a TRUE BOOLEAN'; elseif(is_false($data)) $message = 'Variable holds a FALSE BOOLEAN'; elseif(is_null($data)) $message = 'Variable is NULL'; elseif(is_float($data)) $message = 'Variable is FLOAT'; else $message = 'N/A'; $output = '<div style="clear:both;"></div>'; $output .= '<meta charset="UTF-8" />'; $output .= '<style>::selection{background-color:#E13300!important;color:#fff}::moz-selection{background-color:#E13300!important;color:#fff}::webkit-selection{background-color:#E13300!important;color:#fff}div.debugbody{background-color:#fff;margin:40px;font:9px/12px normal;font-family:Arial,Helvetica,sans-serif;color:#4F5155;min-width:500px}a.debughref{color:#039;background-color:transparent;font-weight:400}h1.debugheader{color:#444;background-color:transparent;border-bottom:1px solid #D0D0D0;font-size:12px;line-height:14px;font-weight:700;margin:0 0 14px;padding:14px 15px 10px;font-family:Consolas}code.debugcode{font-family:Consolas,Monaco,Courier New,Courier,monospace;font-size:12px;background-color:#f9f9f9;border:1px solid #D0D0D0;color:#002166;display:block;margin:10px 0;padding:5px 10px 15px}pre.debugpre{display:block;padding:0;margin:0;color:#002166;font:12px/14px normal;font-family:Consolas,Monaco,Courier New,Courier,monospace;background:0;border:0}div.debugcontent{margin:0 15px}p.debugp{margin:0;padding:0}.debugitalic{font-style:italic}.debutextR{text-align:right;margin-bottom:0;margin-top:0}.debugbold{font-weight:700}p.debugfooter{text-align:right;font-size:11px;border-top:1px solid #D0D0D0;line-height:32px;padding:0 10px;margin:20px 0 0}div.debugcontainer{margin:10px;border:1px solid #D0D0D0;-webkit-box-shadow:0 0 8px #D0D0D0}code.debug p{padding:0;margin:0;width:100%;text-align:right;font-weight:700;text-transform:uppercase;border-bottom:1px dotted #CCC;clear:right}code.debug span{float:left;font-style:italic;color:#CCC}</style>'; $output .= '<div class="debugbody"><div class="debugcontainer">'; $output .= '<h1 class="debugheader">'.$varname.'</h1>'; $output .= '<div class="debugcontent">'; $output .= '<code class="debugcode"><p class="debugp debugbold debutextR">:: Variable Type</p>' . $message . '</code>'; if($add_last_query) { if($CI->db->last_query()) { $output .= '<code class="debugcode"><p class="debugp debugbold debutextR">:: $CI->db->last_query()</p>'; $output .= $CI->db->last_query(); $output .= '</code>'; } } $output .= '<code class="debugcode"><p class="debugp debugbold debutextR">:: print_r</p><pre class="debugpre">'; ob_start(); print_r($data); $output .= trim(ob_get_clean()); $output .= '</pre></code>'; if($add_var_dump) { $output .= '<code class="debugcode"><p class="debugp debugbold debutextR">:: var_dump</p><pre class="debugpre">'; ob_start(); var_dump($data); $vardump = trim(ob_get_clean()); $vardump = preg_replace("/\]\=\>\n(\s+)/m", "] => ", $vardump); $output .= $vardump; $output .= '</pre></code>'; } $output .= '</div><p class="debugfooter">Vayes Debug Helper © Yahya A. Erturan</p></div></div>'; $output .= '<div style="clear:both;"></div>'; if (PHP_SAPI == 'cli') { echo $varname . ' = ' . PHP_EOL . $output . PHP_EOL . PHP_EOL; return; } echo $output; if ($die) { exit; } } } // ------------------------------------------------------------------------ // ------------------------------------------------------------------------ // ------------------------------------------------------------------------ // ------------------------------------------------------------------------ // ------------------------------------------------------------------------ /* End of file vayes_helper.php */ /* Location: ./application/helpers/vayes_helper.php */ 

Txanks to Yahya AE