src/Cron/FieldFactory.php
public function getField($position)
    {
        if (!isset($this->fields[$position])) {
            switch ($position) {
                case 0:
                    $this->fields[$position] = new SecondsField();
                    break;
                case 1:
                    $this->fields[$position] = new MinutesField();
                    break;
                case 2:
                    $this->fields[$position] = new HoursField();
                    break;
                case 3:
                    $this->fields[$position] = new DayOfMonthField();
                    break;
                case 4:
                    $this->fields[$position] = new MonthField();
                    break;
                case 5:
                    $this->fields[$position] = new DayOfWeekField();
                    break;
                default:
                    throw new InvalidArgumentException(
                        $position . ' is not a valid position'
                    );
            }
        }
        return $this->fields[$position];
    }
public function getField($position)
    {
        if (!isset($this->fields[$position])) {
            switch ($position) {
                case 0:
                    $this->fields[$position] = new SecondsField();
                    break;
                case 1:
                    $this->fields[$position] = new MinutesField();
                    break;
                case 2:
                    $this->fields[$position] = new HoursField();
                    break;
                case 3:
                    $this->fields[$position] = new DayOfMonthField();
                    break;
                case 4:
                    $this->fields[$position] = new MonthField();
                    break;
                case 5:
                    $this->fields[$position] = new DayOfWeekField();
                    break;
                default:
                    throw new InvalidArgumentException(
                        $position . ' is not a valid position'
                    );
            }
        }
        return $this->fields[$position];
    }
public function getField ( $ position ) { if ( ! isset ( $ this -> fields [ $ position ] ) ) { switch ( $ position ) { case 0 : $ this -> fields [ $ position ] = new SecondsField ( ) ; break ; case 1 : $ this -> fields [ $ position ] = new MinutesField ( ) ; break ; case 2 : $ this -> fields [ $ position ] = new HoursField ( ) ; break ; case 3 : $ this -> fields [ $ position ] = new DayOfMonthField ( ) ; break ; case 4 : $ this -> fields [ $ position ] = new MonthField ( ) ; break ; case 5 : $ this -> fields [ $ position ] = new DayOfWeekField ( ) ; break ; default : throw new InvalidArgumentException ( $ position . ' is not a valid position' ) ; } } return $ this -> fields [ $ position ] ; }
Get an instance of a field object for a cron expression position

@param int $position CRON expression position value to retrieve

@return FieldInterface
@throws InvalidArgumentException if a position is not valid
Get an instance of a field object for a cron expression position