php：最好的日志管理 monolog, php写日志monolog, php日志类monolog

主页：https://seldaek.github.io/monolog/

项目：https://github.com/Seldaek/monolog

安装：（什么是composer？）

$ composer require monolog/monolog

简单使用：

<?php

use Monolog\Logger;
use Monolog\Handler\StreamHandler;

// create a log channel
$log = new Logger('name');
$log->pushHandler(new StreamHandler('path/to/your.log', Logger::WARNING));

// add records to the log
$log->warning('Foo');
$log->error('Bar');

实例：外套类：

<?php
/**
 * @filesource  :  logging.php
 * @Author      :  GLS
 * @copyright   :  Copyright (C) 2010-2012 GLS IT Studio NY
 * @version     :  Created on Dec 6, 2010 10:12:19 AM
 * @Github      :  https://github.com/Seldaek/monolog
 *
 */

/**
Log Levels
Monolog supports the logging levels described by RFC 5424.
DEBUG (100): Detailed debug information.
INFO (200): Interesting events. Examples: User logs in, SQL logs.
NOTICE (250): Normal but significant events.
WARNING (300): Exceptional occurrences that are not errors. Examples: Use of deprecated APIs, poor use of an API, undesirable things that are not necessarily wrong.
ERROR (400): Runtime errors that do not require immediate action but should typically be logged and monitored.
CRITICAL (500): Critical conditions. Example: Application component unavailable, unexpected exception.
ALERT (550): Action must be taken immediately. Example: Entire website down, database unavailable, etc. This should trigger the SMS alerts and wake you up.
EMERGENCY (600): Emergency: system is unusable.

use Monolog\Logger;
use Monolog\Handler\StreamHandler;

<?php
// create a log channel
$log = new Logger('name');
$log->pushHandler(new StreamHandler('path/to/your.log', Logger::WARNING));

// add records to the log
$log->warning('Foo');
$log->error('Bar');

<?php
$logger->info('Adding a new user', array('username' => 'Seldaek'));

<?php

use Monolog\Logger;
use Monolog\Handler\StreamHandler;
use Monolog\Handler\FirePHPHandler;

// Create some handlers
$stream = new StreamHandler(__DIR__.'/my_app.log', Logger::DEBUG);
$firephp = new FirePHPHandler();

// Create the main logger of the app
$logger = new Logger('my_logger');
$logger->pushHandler($stream);
$logger->pushHandler($firephp);

// Create a logger for the security-related stuff with a different channel
$securityLogger = new Logger('security');
$securityLogger->pushHandler($stream);
$securityLogger->pushHandler($firephp);

// Or clone the first one to only change the channel
$securityLogger = $logger->withName('security');

*/

include_once rtrim(dirname(__FILE__), '/').'/vendor/autoload.php';

class Logging
{
    private $levels = array(
        100 => 'debug',
        200 => 'info',
        250 => 'notice',
        300 => 'warning',
        400 => 'error',
        500 => 'critical',
        550 => 'alert',
        600 => 'emergency',
    );
    private $logger;
    private $current_level;

    function __construct($params = array())
    {
        $today_log    = '_'.date('Y-m-d').'.log';
        $logger_name  = $params['name']  ?? 'logger';
        $logger_file  = $params['file']  ?? str_replace(' ','-',$logger_name).$today_log;

        if(basename($logger_file) == $logger_file) $logger_file = LOGPATH.basename($logger_file);
        $logger_file = strtolower($logger_file);
        if(pathinfo($logger_file, PATHINFO_EXTENSION) != 'log') $logger_file .= $today_log;

        $this->current_level  = $params['level'] ?? 100;
        $this->logger         = new Monolog\Logger($logger_name);

        switch ($this->current_level)
        {
            case 100: $this->logger->pushHandler(new Monolog\Handler\StreamHandler($logger_file, Monolog\Logger::DEBUG));     break;
            case 200: $this->logger->pushHandler(new Monolog\Handler\StreamHandler($logger_file, Monolog\Logger::INFO));      break;
            case 250: $this->logger->pushHandler(new Monolog\Handler\StreamHandler($logger_file, Monolog\Logger::NOTICE));    break;
            case 300: $this->logger->pushHandler(new Monolog\Handler\StreamHandler($logger_file, Monolog\Logger::WARNING));   break;
            case 400: $this->logger->pushHandler(new Monolog\Handler\StreamHandler($logger_file, Monolog\Logger::ERROR));     break;
            case 500: $this->logger->pushHandler(new Monolog\Handler\StreamHandler($logger_file, Monolog\Logger::CRITICAL));  break;
            case 550: $this->logger->pushHandler(new Monolog\Handler\StreamHandler($logger_file, Monolog\Logger::ALERT));     break;
            case 600: $this->logger->pushHandler(new Monolog\Handler\StreamHandler($logger_file, Monolog\Logger::EMERGENCY)); break;
        }

        return $this;
    }

    function log($msg = '', $data = '', $level_code = '')
    {
        $level_func = $this->levels[$level_code] ?? false;
        if($data AND !is_array($data)) $data = json_decode(json_encode($data), true);
        if($msg AND $level_func AND $level_func)
        {
            $this->current_level = $level_code;
            $data ? $this->logger->{$level_func}($msg, $data) :  $this->logger->{$level_func}($msg);
        }

        return $this;
    }

    function __call($func, $args)
    {
        $func       = strtolower($func);
        $level_code = array_search($func, $this->levels);
        if($level_code) $this->log(($args[0]??''), ((array)$args[1]??array()), ($args[2]??$level_code));

        return $this;
    }
}

// 用法
$logging = new Logging();
$logging->debug('i am justcode! ', array('subdomain'=>'justcode', 'domain'=>'ikeepstudying.com'));
$logging->error('i am justcode! ');

本文：php：最好的日志管理 monolog, php写日志monolog, php日志类monolog