yii2 log輸出到file及database

編輯config/web.php

首先log要開啟

'bootstrap' => [    'log'],

[file]

'components' => [    'log' => [        'targets' => [            [                'class' => 'yii\log\FileTarget',                'exportInterval' => 1,            ],        ],    ],

預設輸出到runtime/logs/app.log

注意webserver或控制台使用者要有寫入該檔案的許可權

[database]

'log' => [    'targets' => [        [            'class' => 'yii\log\DbTarget',            'levels' => ['error', 'warning', 'trace'],        ]    ]],

預設輸出db組件對應的資料庫下{{%log}}表

yii2根目錄下運行下面命令產生對應的table schema

./yii migrate --migrationPath=@yii/log/migrations/

注意config/console.php下也要有和web.php同樣的配置，否則命令執行不成功。

還可以根據不同的環境配置不同的記錄模式

'components' => [    'log' => [        'traceLevel' => YII_ENV == 'dev' ? 3 : 0,        'targets' => [            [                'class' => 'yii\log\DbTarget',                'levels' => YII_DEBUG ? ['error', 'warning', 'trace'] : ['error'],            ],            [                'class' => 'yii\log\FileTarget',                'levels' => YII_DEBUG ? ['error', 'warning', 'trace'] : ['error', 'warning'],            ],        ],    ],],

