tFPDF::_dounderline PHP Method

    function _dounderline($x, $y, $txt)
    {
        // Underline text
        $up = $this->CurrentFont['up'];
        $ut = $this->CurrentFont['ut'];
        $w = $this->GetStringWidth($txt) + $this->ws * substr_count($txt, ' ');
        return sprintf('%.2F %.2F %.2F %.2F re f', $x * $this->k, ($this->h - ($y - $up / 1000 * $this->FontSize)) * $this->k, $w * $this->k, -$ut / 1000 * $this->FontSizePt);
    }