yii2 how to view the logs of another .log file - yii2

Question

I am using the yii2 framework with the 'queue' extension. This extension may fail, which is saved in the log file, and I would like to view the error in a specific view.
I was able to log errors into a specific .log file, so the real question is, how can I view errors from another log file?

Answer 1

Yii framework use category distinguish log file
config：
return [
'bootstrap' => ['log'],
'timeZone' => 'PRC',
'components' => [
'log' => [
'targets' => [
//default
[
'class' => 'yii\log\DbTarget',
'levels' => ['error', 'warning'],
],
//especially
[
'class' => 'yii\log\DbTarget',
'levels' => ['error'],
'categories' => ['yii\db\*'],//The point
'logFile'=>'log.txt',//you custom file
],
//especially2
[
'class' => 'yii\log\DbTarget',
'levels' => ['error'],
'categories' => ['app\models'],//The point
'logFile'=>'log.txt',//you custom file
],
//especially3
[
'class' => 'yii\log\DbTarget',
'levels' => ['error'],
'categories' => ['abc'],//The point
'logFile'=>'log.txt',//you custom file
],
],
],
],
];
Use it
Yii::trace('db error');
Yii::trace('start calculating average revenue', __METHOD__);
Yii::trace('start calculating average revenue', 'abc');

Answer 2

'log' => [
'traceLevel' => YII_DEBUG ? 3 : 0,
'targets' => [
[
'class' => 'yii\log\FileTarget',
'levels' => ['error', 'warning'],
],
'error' =>
[
'class' => 'yii\log\FileTarget',
'levels' => ['error', 'warning'],
'categories' => ['yii\queue\Queue'],
'logFile' => '#runtime/logs/error.log',
//'enabled' => YII_DEBUG,
//'exportInterval' => 1,
],
],
],