YII2 日志

YII 提供的日志写入方法：

  1、Yii::getLogger()->log($message, $level, $category = 'application')

  2、Yii::trace($message, $category = 'application');

3、Yii::error($message, $category = 'application');
4、Yii::warning($message, $category = 'application');
5、Yii::info($message, $category = 'application');


配置：
     /config/web.php

  components->log

 默认配置：

'log' => [

            'traceLevel' => YII_DEBUG ? 3 : 0,

            'targets' => [

                [

                    'class' => 'yii\log\FileTarget',

                    'levels' => ['error', 'warning'],

                ],

            ],

        ],

现修改配置如下：

 'log' => [

            'traceLevel' => YII_DEBUG ? 3 : 0,

            'targets' => [

                [

                    'class' => 'yii\log\FileTarget',

                    'levels' => ['error', 'warning','info','trace'],

                ],

                [

                    'class' => 'yii\log\FileTarget',

                    'levels' => ['info'],

                    'categories' => ['rhythmk'],

                    'logFile' => '@app/runtime/logs/Mylog/requests.log',

                    'maxFileSize' => 1024 * 2,

                    'maxLogFiles' => 20,

                ],

            ],

        ],

 

输出日志：

    

       Yii::getLogger()->log("开始写自定义日志",Logger::LEVEL_ERROR);



        Yii::trace("trace,开发调试时候记录");



        Yii::error("error,错误日志");



        Yii::warning("warning,警告信息");



        Yii::info("info,记录操作提示");

 

 输出自定义目录日志

       // 日志文件在输出目录  @app/runtime/logs/Mylog/requests.log

        Yii::info("info .... ","rhythmk");