yii2 動態配置日志(log)

如果我們在項目中不允許修改配置文件中的 log 組件，那么動態配置 log 就變得很重要了，下面我分享一下動態配置 log 的方法:

默認的日志格式是 {date}{ip}{userID}{sessionID}{level}{category}{text}{trace}

這種方式不會讓默認的 app.log 失效。（推薦）

 

public function init() { parent::init(); \Yii::$app->log->targets[] = \Yii::createObject([ 'class' => 'yii\log\FileTarget',
        'exportInterval' => 1,  //立即刷新日志
        'levels' => ['info', 'error'], // only display info ,error
        'categories' => ['custom'],  //log category
        'logFile' => Yii::getAlias('@app').DIRECTORY_SEPARATOR.'runtime'.DIRECTORY_SEPARATOR.'logs'.DIRECTORY_SEPARATOR.'logFileName.log', // filePath
        'logVars' => ['_GET', '_POST'],  //只記錄_GET _POST的值
        'maxFileSize' => 1024 * 2,  // 日志文件大小
        'maxLogFiles' => 10,  // 日志個數
 ]); }

 

這種方式，異常不能寫入 app.log 。

public function init() { parent::init(); Yii::$app->log->targets[0]->levels = ['info', 'error', 'warning']; // only display info ,error and warning
    Yii::$app->log->targets[0]->categories = ['categoryName']; // log category
    Yii::$app->log->targets[0]->logFile = Yii::getAlias('@app').DIRECTORY_SEPARATOR.'runtime'.DIRECTORY_SEPARATOR.'logs'.DIRECTORY_SEPARATOR.'logFileName.log'; // filePath
    Yii::$app->log->targets[0]->logVars = ['*'];  // don't display GET,POST,SERVER,COOKIE,SESSION, if config this,display otherwise.
    Yii::$app->log->targets[0]->maxFileSize = 1024 * 2; // maxFileSize=2M
    Yii::$app->log->targets[0]->maxLogFiles = 20;  // maxLogFiles = 20
    
    ... }

`