tFPDF::_getpagesize PHP Method

    function _getpagesize($size)
    {
        if (is_string($size)) {
            $size = strtolower($size);
            if (!isset($this->StdPageSizes[$size])) {
                $this->Error('Unknown page size: ' . $size);
            }
            $a = $this->StdPageSizes[$size];
            return array($a[0] / $this->k, $a[1] / $this->k);
        } else {
            if ($size[0] > $size[1]) {
                return array($size[1], $size[0]);
            } else {
                return $size;
            }
        }
    }