public function setRowspan($rowspan)
    {
        if (is_int($rowspan) === true) {
            $this->rowspan = $rowspan;
        } else {
            $msg = "The 'rowspan' argument must be an integer, '" . gettype($rowspan) . "' given.";
            throw new InvalidArgumentException($msg);
        }
    }
public function setRowspan($rowspan)
    {
        if (is_int($rowspan) === true) {
            $this->rowspan = $rowspan;
        } else {
            $msg = "The 'rowspan' argument must be an integer, '" . gettype($rowspan) . "' given.";
            throw new InvalidArgumentException($msg);
        }
    }
public function setRowspan ( $ rowspan ) { if ( is_int ( $ rowspan ) === true ) { $ this -> rowspan = $ rowspan ; } else { $ msg = "The 'rowspan' argument must be an integer, '" . gettype ( $ rowspan ) . "' given." ; throw new InvalidArgumentException ( $ msg ) ; } }
Set the value of the rowspan attribute. Give a negative value if
no rowspan attribute is set.

@param integer $rowspan
@throws \InvalidArgumentException If $rowspan is not an integer.
Set the value of the rowspan attribute . Give a negative value if no rowspan attribute is set .