使用Composer从零开发一个简单的web框架(完结)-monolog

安装依赖

$ pwd
/d/apps/wamp/www/phpweb

$ composer require monolog/monolog
Using version ^3.5 for monolog/monolog
./composer.json has been updated

集成 monolog

编辑core/Controller.php，引入相关类

<?php
namespace core;

use core\tpl\TwigTpl;
use core\tpl\PhpTpl;
use core\tpl\Tpl;
use Monolog\Logger;
use Monolog\Handler\StreamHandler;

编辑core/Controller.php，添加monolog相关代码

public function debug($message, array $content = []) {
    $this->logCreate();
    $this->_log->debug($message, $content);
}
public function info($message, array $content = []) {
    $this->logCreate();
    $this->_log->info($message, $content);
}
public function error($message, array $content = []) {
    $this->logCreate();
    $this->_log->error($message, $content);
}

/** @var Logger  */
private $_log = null;
public function logCreate($filename = '') {
    if ($this->_log && !$filename) return;

    $filename = $filename ?: date('Ymd') . '.log';
    $filename = PATH_LOG . $filename;

    $this->_log = new Logger('logger');
    // 用户自定义日志级别
    if (defined('APP_LOG_LEVEL')) {
        $this->_log->pushHandler(new StreamHandler($filename, $this->_logGetLevel(APP_LOG_LEVEL)));
    } else {
        $logLevel = APP_DEBUG ? 'debug' : 'error';
        $this->_log->pushHandler(new StreamHandler($filename, $this->_logGetLevel($logLevel)));
    }
}
private function _logGetLevel($levelName) {
    if ($levelName == 'debug') {
        return Logger::DEBUG;
    } else if ($levelName == 'info') {
        return Logger::INFO;
    } else {
        return Logger::ERROR;
    }
}

编辑public/index.php，定义APP_LOG_LEVEL常量日志等级

// Twig 模板引擎缓存目录(使用 twig 模板引擎才需要定义)
define('PATH_TWIG_CACHE',   PATH_RUNTIME . 'twig/');

// 日志等级(debug|info|error)
//define('APP_LOG_LEVEL', 'error');

// 默认应用
define('DEFAULT_APP',           'home');

使用日志

编辑app/home/Hello.php，添加log和log2方法

public function log() {
    $this->debug('debug 日志来自 Hello.log');
    $this->info('info 日志来自 Hello.log');
    $this->error('error 日志来自 Hello.log', ['name' => 'five', 'age' => 18]);
}

public function log2() {
    $this->logCreate('log2.log');

    $this->debug('debug 日志来自 Hello.log2');
    $this->info('info 日志来自 Hello.log2');
    $this->error('error 日志来自 Hello.log2', ['name' => 'five', 'age' => 18]);
}

## 测试

浏览器访问 http://phpweb.com/home/hello/log，日志文件 runtime/log/20200428.log 增加

[2022-04-28T13:00:53.686150+08:00] logger.DEBUG: debug 日志来自 Hello.log [] []
[2022-04-28T13:00:53.688133+08:00] logger.INFO: info 日志来自 Hello.log [] []
[2022-04-28T13:00:53.688187+08:00] logger.ERROR: error 日志来自 Hello.log {"name":"five","age":18} []

浏览器访问 http://phpweb.com/home/hello/log2，日志文件 runtime/log/log2.log 增加

[2022-04-28T13:04:29.075890+08:00] logger.DEBUG: debug 日志来自 Hello.log2 [] []
[2022-04-28T13:04:29.078215+08:00] logger.INFO: info 日志来自 Hello.log2 [] []
[2022-04-28T13:04:29.078270+08:00] logger.ERROR: error 日志来自 Hello.log2 {"name":"five","age":18} []

编辑public/index.php，修改常量APP_DEBUG为false

浏览器访问 http://phpweb.com/home/hello/log，日志文件 runtime/log/20200428.log 增加

[2022-04-28T13:05:41.393067+08:00] logger.ERROR: error 日志来自 Hello.log {"name":"five","age":18} []

浏览器访问 http://phpweb.com/home/hello/log2，日志文件 runtime/log/log2.log 增加

[2022-04-28T13:05:54.468236+08:00] logger.ERROR: error 日志来自 Hello.log2 {"name":"five","age":18} []

编辑public/index.php，修改常量APP_DEBUG为true，修改常量APP_LOG_LEVEL为info

浏览器访问 http://phpweb.com/home/hello/log，日志文件 runtime/log/20200428.log 增加

[2022-04-28T13:06:54.743879+08:00] logger.INFO: info 日志来自 Hello.log [] []
[2022-04-28T13:06:54.745876+08:00] logger.ERROR: error 日志来自 Hello.log {"name":"five","age":18} []

浏览器访问 http://phpweb.com/home/hello/log2，日志文件 runtime/log/log2.log 增加

[2022-04-28T13:07:05.279270+08:00] logger.INFO: info 日志来自 Hello.log2 [] []
[2022-04-28T13:07:05.280969+08:00] logger.ERROR: error 日志来自 Hello.log2 {"name":"five","age":18} []