lumen下自己的日志方法

'df','time'=>time()];
        $path = '/home/logs/tian.log';
        $hander = new StreamHandler($path);
        // $handler = new StreamHandler(storage_path($path) . date('Y-m-d').'.log');
        $hander->setFormatter(new LineFormatter(null, null, true, true));
        $c->pushHandler($hander);
        $c->info($message,$context);
    }
}

1. storage_path，框架自带方法，会把路径只想storage文件夹下.

if (! function_exists('storage_path')) {
    /**
     * Get the path to the storage folder.
     *
     * @param  string  $path
     * @return string
     */
    function storage_path($path = '')
    {
        return app()->storagePath($path);
    }
}

 /**
     * Get the storage path for the application.
     *
     * @param  string|null  $path
     * @return string
     */
    public function storagePath($path = '')
    {
        return $this->basePath().'/storage'.($path ? '/'.$path : $path);
    }

2. 可用方法: debug|info|notice|warning|error|critical|alert|emergency 可调用的方法详见 Monolog\Logger 类

$c->info($message,$context);

cat tian.log 
[2018-11-29 20:17:25] test.INFO: a {"msg":"df","time":1543493845}