本文实例讲述了Laravel日志用法。分享给大家供大家参考,具体如下:
这里使用的Laravel版本仍是5.2
日志是非常重要的。本地开发可以开启调试模式,但是上线的项目查看日志是非常简洁有效的调试手段。Laravel集成了Monolog日志库以便提供多种功能强大的日志处理器。
Laravel支持日志方法single, daily, syslog 和 errorlog。例如,如果你想要日志文件按日生成而不是生成单个文件,应该在配置文件config/app.php中设置log值如下:
'log' => 'daily'
系统默认配置为single
#config/app.php:111'log' => env('APP_LOG', 'single'),
下面我们看下Laravel是如何配置日志的。
#vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php:36protected $bootstrappers = [ 'Illuminate/Foundation/Bootstrap/DetectEnvironment', 'Illuminate/Foundation/Bootstrap/LoadConfiguration', 'Illuminate/Foundation/Bootstrap/ConfigureLogging', 'Illuminate/Foundation/Bootstrap/HandleExceptions', 'Illuminate/Foundation/Bootstrap/RegisterFacades', 'Illuminate/Foundation/Bootstrap/RegisterProviders', 'Illuminate/Foundation/Bootstrap/BootProviders',];<?phpnamespace Illuminate/Foundation/Bootstrap;use Illuminate/Log/Writer;use Monolog/Logger as Monolog;use Illuminate/Contracts/Foundation/Application;class ConfigureLogging{/** * Bootstrap the given application. * * @param /Illuminate/Contracts/Foundation/Application $app * @return void */public function bootstrap(Application $app){ $log = $this->registerLogger($app); // If a custom Monolog configurator has been registered for the application // we will call that, passing Monolog along. Otherwise, we will grab the // the configurations for the log system and use it for configuration. if ($app->hasMonologConfigurator()) { call_user_func( $app->getMonologConfigurator(), $log->getMonolog() ); } else { $this->configureHandlers($app, $log); }}
如果自定义Monolog配置,走if条件,默认走else
protected function configureHandlers(Application $app, Writer $log){ $method = 'configure'.ucfirst($app['config']['app.log']).'Handler'; $this->{$method}($app, $log);}/*** Configure the Monolog handlers for the application.** @param /Illuminate/Contracts/Foundation/Application $app* @param /Illuminate/Log/Writer $log* @return void*/protected function configureSingleHandler(Application $app, Writer $log){ $log->useFiles( $app->storagePath().'/logs/laravel.log', #存储文件 $app->make('config')->get('app.log_level', 'debug') #存储级别 );}
这里useFiles方法是注册signle文件日志处理程序,并设置存储文件以及存储的级别。
下面是初始化日志时的4种日志处理注册方式。
public function useFiles($path, $level = 'debug') #单一文件public function useDailyFiles($path, $days = 0, $level = 'debug') #每日生成public function useSyslog($name = 'laravel', $level = 'debug') #系统日志的方式public function useErrorLog($level = 'debug', $messageType = ErrorLogHandler::OPERATING_SYSTEM) #等同于php的error_log方式
日志初始化信息基本上就是上面这些。
你可以使用Log门面编写日志信息到日志中:
八种日志级别:emergency, alert, critical, error,warning, notice, info 和 debug。
Log::emergency($error);Log::alert($error);Log::critical($error);Log::error($error);Log::warning($error);Log::notice($error);Log::info($error);Log::debug($error);
希望本文所述对大家基于Laravel框架的PHP程序设计有所帮助。
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