【MY_Log】自己写的MY_log库，支持自定义类别和子目录保存

jiji262

I do some changes to Log library and now it has more fuure.

On github: https://github.com/jiji262/phpLauncher/blob/master/application/libraries/MY_Log.php

You can check my project here: https://github.com/jiji262/phpLauncher/

使用方法：

* Logging Class with catalog and sub_directories supported
*
* Usage:  Change the catalogs config in application/config.php
* $config[‘mylog_cats’]= array(‘CAT1’,‘CAT2’,‘CAT3’);
* $config[‘mylog_sub_directories’]= true;
* Note: 1. Leaving this array blank will log ALL catalogs
*  2. Without setting ‘mylog_cats; will default to use standard
*  log threshold config item
*  3. The log file will be saved to different directories under
*  log_path which will be named “pathname-catname-date(‘Y-m-d’)-EXT”
*  4.  mylog_sub_directories can works even “mylog_cats” is not set
*
* Then you can use log_message(“CAT1”, “messages logged”); in you codes.

PHP复制代码

[/align][align=left][color=rgb(39, 52, 60)][backcolor=rgb(251, 251, 253)][font=Arial, Helvetica, sans-serif][size=11px][color=#000]/**
* 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 with catalog and sub_directories supported
 *
 * Usage:  Change the catalogs config in application/config.php
 * $config['mylog_cats']= array('CAT1','CAT2','CAT3');
 * $config['mylog_sub_directories']= true;
 * Note: 1. Leaving this array blank will log ALL catalogs
 *    2. Without setting 'mylog_cats; will default to use standard
 *    log threshold config item
 *    3. The log file will be saved to different directories under
 *    log_path which will be named "pathname-catname-date('Y-m-d')-EXT"
 *    4.  mylog_sub_directories can works even "mylog_cats" is not set
 *
 * Then you can use log_message("CAT1", "messages logged"); in you codes.
 *
 * @package  CodeIgniter
 * @subpackage Libraries
 * @category Logging
 * @author  Allenji@Tencent
 * @link  Based on the version http://codeigniter.com/wiki/MY_Log/
 
 */
class MY_Log extends CI_Log {
 
 /**
  * Constructor
  */
 public function __construct()
 {
     parent::__construct();
        $config =& get_config();
       
        if (isset ($config['mylog_cats']))
        {
            $mylog_cats=$config['mylog_cats'];
        }
        else
        {
            $mylog_cats="";
        }
        $this->_enable_sub_directory = isset ($config['mylog_sub_directories']) ? $config['mylog_sub_directories'] : false;
        $this->log_path = ($config['log_path'] != '') ? $config['log_path'] : APPPATH.'logs/';
       
        if ( ! is_dir($this->log_path) OR ! is_really_writable($this->log_path))
        {
            $this->_enabled = FALSE;
        }
        if (is_array($mylog_cats))
        {
            $this->_logging_array = $mylog_cats;            
        }
        if (is_numeric($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($this->_logging_array))
        {
            if ((! in_array($level, $this->_logging_array)) && (! empty($this->_logging_array)))
            {
                return FALSE;
            }
        }
        else
        {
            if ( ! isset($this->_levels[$level]) OR ($this->_levels[$level] > $this->_threshold))
            {
                return FALSE;
            }
        }
  if ($this->_enable_sub_directory) {
   if (!@is_dir($this->log_path. $level)) {
    @mkdir($this->log_path. $level, 0777);
   }
   $filepath = $this->log_path. $level . '/log-'.date('Y-m-d').EXT;
  } else {
         $filepath = $this->log_path.'log-'.date('Y-m-d').EXT;
  }
        $message  = '';
        //echo $filepath;echo "333";exit;
       
        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;
        }
 
        $message .= date($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 MY_Log.php */
/* Location: ./application/libraries/MY_Log.php */ [/color][/size][/font][/backcolor][/color]
[/align][align=left]

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