Extends the functionality of the CI_Log class by allowing users to choose which threshold levels they want to log, rather than logging all the way up to the given threshold value.
Usage
Create a file named Log.php in application/libraries/ and paste the script below into it:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 5.1.6 or newer
*
* @package CodeIgniter
* @author ExpressionEngine Dev Team
* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
* @license http://codeigniter.com/user_guide/license.html
* @link http://codeigniter.com
* @since Version 1.0
* @filesource
*/
// ------------------------------------------------------------------------
/**
* Logging Class
*
* @package CodeIgniter
* @subpackage Libraries
* @category Logging
* @author ExpressionEngine Dev Team
* @link http://codeigniter.com/user_guide/general/errors.html
*/
// ------------------------------------------------------------------------
/**
* Custom Logging Threshold
*
* Extends the functionality of the CI_Log class by allowing users to choose which
* threshold level(s) they want to log, rather than logging all the way up to the
* given threshold.
*
* @package CodeIgniter
* @subpackage Libraries
* @category Logging
* @author Matthew Switzer (StrayIdeas)
* @link http://codeigniter.com/wiki/Custom_Logging_Threshold/
*/
class CI_Log {
protected $_log_path;
protected $_threshold = 1;
protected $_date_fmt = 'Y-m-d H:i:s';
protected $_enabled = TRUE;
protected $_levels = array('ERROR' => '1', 'DEBUG' => '2', 'INFO' => '3', 'ALL' => '4');
/**
* Constructor
*/
public function __construct()
{
$config =& get_config();
$this->_log_path = ($config['log_path'] != '') ? $config['log_path'] : APPPATH.'logs/';
if ( ! is_dir($this->_log_path) OR ! is_really_writable($this->_log_path))
{
$this->_enabled = FALSE;
}
// also allow threshold values to be passed as an array
if (is_numeric($config['log_threshold']) OR is_array($config['log_threshold']))
{
$this->_threshold = $config['log_threshold'];
}
if ($config['log_date_format'] != '')
{
$this->_date_fmt = $config['log_date_format'];
}
}
// --------------------------------------------------------------------
/**
* Write Log File
*
* Generally this function will be called using the global log_message() function
*
* @param string the error level
* @param string the error message
* @param bool whether the error is a native PHP error
* @return bool
*/
public function write_log($level = 'error', $msg, $php_error = FALSE)
{
if ($this->_enabled === FALSE)
{
return FALSE;
}
$level = strtoupper($level);
if ( ! isset($this->_levels[$level])
OR ($this->_levels[$level] > $this->_threshold)
// if the threshold values is an array, check to see if the error level does not exist in it
OR (is_array($this->_threshold) && ! in_array($this->_levels[$level], $this->_threshold)))
{
return FALSE;
}
$filepath = $this->_log_path.'log-'.date('Y-m-d').'.php';
$message = '';
if ( ! file_exists($filepath))
{
$message .= "<"."?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); ?".">\n\n";
}
if ( ! $fp = @fopen($filepath, FOPEN_WRITE_CREATE))
{
return FALSE;
}
$message .= $level.' '.(($level == 'INFO') ? ' -' : '-').' '.date($this->_date_fmt). ' --> '.$msg."\n";
flock($fp, LOCK_EX);
fwrite($fp, $message);
flock($fp, LOCK_UN);
fclose($fp);
@chmod($filepath, FILE_WRITE_MODE);
return TRUE;
}
}
// END Log Class
/* End of file Log.php */
/* Location: ./system/libraries/Log.php */
Next, open config.php and edit the value of the $config[‘log_threshold’] variable:
// pass an array containing the threshold values you want to log
$config['log_threshold'] = array(1, 3);
// this will log only informational messages
$config['log_threshold'] = array(3);
Note: If you wish to retain the original functionality of the $config[‘log_threshold’] variable, simply pass an integer as the value:
$config['log_threshold'] = 3;