Yii2框架中日志的使用介绍详解

Yii::log($message, $level, $category);
Yii::trace($message, $category);

Yii::getLogger()->log($msg, $level, $category)

Yii::getLogger()->log(“your site has been hacked”, Logger::LEVEL_ERROR)
//默认category为application即应用程序级别的日志

[
  'bootstrap' => ['log'], // ensure logger gets loaded before application starts
  'components' => [
    'log' => [
      'targets' => [
        'file' => [
          'class' => 'yii\log\FileTarget',
          'levels' => ['trace', 'info'],
          'categories' => ['yii\*'],
        ],
        'email' => [
          'class' => 'yii\log\EmailTarget',
          'levels' => ['error', 'warning'],
          'message' => [
            'to' => ['admin@techbrood.com', 'support@techbrood.com'],
            'subject' => 'New example.com log message',
          ],
        ],
      ],
    ],
  ],
]