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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
// $Id: Log.class.php 2791 2012-02-29 10:08:57Z liu21st $
/**
+------------------------------------------------------------------------------
* 日志处理类
+------------------------------------------------------------------------------
* @category Think
* @package Think
* @subpackage Core
* @author liu21st <liu21st@gmail.com>
* @version $Id: Log.class.php 2791 2012-02-29 10:08:57Z liu21st $
+------------------------------------------------------------------------------
*/
class Log {
// 日志级别 从上到下，由低到高
const EMERG = 'EMERG'; // 严重错误: 导致系统崩溃无法使用
const ALERT = 'ALERT'; // 警戒性错误: 必须被立即修改的错误
const CRIT = 'CRIT'; // 临界值错误: 超过临界值的错误，例如一天24小时，而输入的是25小时这样
const ERR = 'ERR'; // 一般错误: 一般性错误
const WARN = 'WARN'; // 警告性错误: 需要发出警告的错误
const NOTICE = 'NOTIC'; // 通知: 程序可以运行但是还不够完美的错误
const INFO = 'INFO'; // 信息: 程序输出信息
const DEBUG = 'DEBUG'; // 调试: 调试信息
const SQL = 'SQL'; // SQL：SQL语句 注意只在调试模式开启时有效
// 日志记录方式
const SYSTEM = 0;
const MAIL = 1;
const FILE = 3;
const SAPI = 4;
// 日志信息
static $log = array();
// 日期格式
static $format = '[ c ]';
/**
+----------------------------------------------------------
* 记录日志 并且会过滤未经设置的级别
+----------------------------------------------------------
* @static
* @access public
+----------------------------------------------------------
* @param string $message 日志信息
* @param string $level 日志级别
* @param boolean $record 是否强制记录
+----------------------------------------------------------
* @return void
+----------------------------------------------------------
*/
static function record($message,$level=self::ERR,$record=false) {
if($record || strpos(C('LOG_LEVEL'),$level)) {
$now = date(self::$format);
self::$log[] = "{$now} ".$_SERVER['REQUEST_URI']." | {$level}: {$message}\r\n";
}
}
/**
+----------------------------------------------------------
* 日志保存
+----------------------------------------------------------
* @static
* @access public
+----------------------------------------------------------
* @param integer $type 日志记录方式
* @param string $destination 写入目标
* @param string $extra 额外参数
+----------------------------------------------------------
* @return void
+----------------------------------------------------------
*/
static function save($type='',$destination='',$extra='') {
$type = $type?$type:C('LOG_TYPE');
if(self::FILE == $type) { // 文件方式记录日志信息
if(empty($destination))
$destination = LOG_PATH.date('y_m_d').'.log';
//检测日志文件大小，超过配置大小则备份日志文件重新生成
if(is_file($destination) && floor(C('LOG_FILE_SIZE')) <= filesize($destination) )
rename($destination,dirname($destination).'/'.time().'-'.basename($destination));
}else{
$destination = $destination?$destination:C('LOG_DEST');
$extra = $extra?$extra:C('LOG_EXTRA');
}
error_log(implode('',self::$log), $type,$destination ,$extra);
// 保存后清空日志缓存
self::$log = array();
//clearstatcache();
}
/**
+----------------------------------------------------------
* 日志直接写入
+----------------------------------------------------------
* @static
* @access public
+----------------------------------------------------------
* @param string $message 日志信息
* @param string $level 日志级别
* @param integer $type 日志记录方式
* @param string $destination 写入目标
* @param string $extra 额外参数
+----------------------------------------------------------
* @return void
+----------------------------------------------------------
*/
static function write($message,$level=self::ERR,$type='',$destination='',$extra='') {
$now = date(self::$format);
$type = $type?$type:C('LOG_TYPE');
if(self::FILE == $type) { // 文件方式记录日志
if(empty($destination))
$destination = LOG_PATH.date('y_m_d').'.log';
//检测日志文件大小，超过配置大小则备份日志文件重新生成
if(is_file($destination) && floor(C('LOG_FILE_SIZE')) <= filesize($destination) )
rename($destination,dirname($destination).'/'.time().'-'.basename($destination));
}else{
$destination = $destination?$destination:C('LOG_DEST');
$extra = $extra?$extra:C('LOG_EXTRA');
}
error_log("{$now} ".$_SERVER['REQUEST_URI']." | {$level}: {$message}\r\n", $type,$destination,$extra );
//clearstatcache();
}
}
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