public function setPriority($priority)
    {
        if (! (is_float($priority) && $priority >= 0 && $priority <= 1)) {
            throw new Exception('Priority must be >=0.0 and <=1.0');
        }

        $this->priority = number_format($priority, 1);

        return $this;
    }
public function setPriority($priority)
    {
        if (! (is_float($priority) && $priority >= 0 && $priority <= 1)) {
            throw new Exception('Priority must be >=0.0 and <=1.0');
        }

        $this->priority = number_format($priority, 1);

        return $this;
    }
public function setPriority ( $ priority ) { if ( ! ( is_float ( $ priority ) && $ priority >= 0 && $ priority <= 1 ) ) { throw new Exception ( 'Priority must be >=0.0 and <=1.0' ) ; } $ this -> priority = number_format ( $ priority , 1 ) ; return $ this ; }
It sets priority.

@param $priority
@throws Exception
It sets priority .