public function getDuration()
	{
		$executed = $this->getExecuted();
		$finished = $this->getFinished();

		if (is_null($executed) || is_null($finished)) {
			return 0;
		}

		return strtotime($finished) - strtotime($executed);
	}
public function getDuration()
	{
		$executed = $this->getExecuted();
		$finished = $this->getFinished();

		if (is_null($executed) || is_null($finished)) {
			return 0;
		}

		return strtotime($finished) - strtotime($executed);
	}
public function getDuration ( ) { $ executed = $ this -> getExecuted ( ) ; $ finished = $ this -> getFinished ( ) ; if ( is_null ( $ executed ) || is_null ( $ finished ) ) { return 0 ; } return strtotime ( $ finished ) - strtotime ( $ executed ) ; }
Returns duration of the job's execution.

@return integer Time in seconds.
@todo Implement this!
Returns duration of the job s execution .