public function output($message, $depth = 0) {
        foreach ($this->traces as $trace) {
            $trace->output($message, $depth);
        }
    }
public function output($message, $depth = 0) {
        foreach ($this->traces as $trace) {
            $trace->output($message, $depth);
        }
    }
public function output ( $ message , $ depth = 0 ) { foreach ( $ this -> traces as $ trace ) { $ trace -> output ( $ message , $ depth ) ; } }
Output an progress message in whatever format.

@param string $message the message to output.
@param integer $depth indent depth for this message.
Output an progress message in whatever format .