<?php
    require('../fpdf.php');

    class PDF extends FPDF
    {
        var $B;
        var $I;
        var $U;
        var $HREF;

        function PDF($orientation = 'P', $unit = 'mm', $format = 'A4')
        {
            //Call parent constructor
            $this->FPDF($orientation, $unit, $format);
            //Initialization
            $this->B    = 0;
            $this->I    = 0;
            $this->U    = 0;
            $this->HREF = '';
        }

        function WriteHTML($html)
        {
            //HTML parser
            $html = str_replace("\n", ' ', $html);
            $a    = preg_split('/<(.*)>/U', $html, -1, PREG_SPLIT_DELIM_CAPTURE);
            foreach ($a as $i => $e) {
                if ($i % 2==0) {
                    //Text
                    if ($this->HREF)
                        $this->PutLink($this->HREF, $e);
                    else
                        $this->Write(5, $e);
                } else {
                    //Tag
                    if ($e[0]=='/')
                        $this->CloseTag(strtoupper(substr($e, 1)));
                    else {
                        //Extract attributes
                        $a2   = explode(' ', $e);
                        $tag  = strtoupper(array_shift($a2));
                        $attr = array();
                        foreach ($a2 as $v) {
                            if (preg_match('/([^=]*)=["\']?([^"\']*)/', $v, $a3))
                                $attr[strtoupper($a3[1])] = $a3[2];
                        }
                        $this->OpenTag($tag, $attr);
                    }
                }
            }
        }

        function PutLink($URL, $txt)
        {
            //Put a hyperlink
            $this->SetTextColor(0, 0, 255);
            $this->SetStyle('U', true);
            $this->Write(5, $txt, $URL);
            $this->SetStyle('U', false);
            $this->SetTextColor(0);
        }

        function SetStyle($tag, $enable)
        {
            //Modify style and select corresponding font
            $this->$tag += ($enable ? 1 : -1);
            $style = '';
            foreach (array('B', 'I', 'U') as $s) {
                if ($this->$s > 0)
                    $style .= $s;
            }
            $this->SetFont('', $style);
        }

        function CloseTag($tag)
        {
            //Closing tag
            if ($tag=='B' || $tag=='I' || $tag=='U')
                $this->SetStyle($tag, false);
            if ($tag=='A')
                $this->HREF = '';
        }

        function OpenTag($tag, $attr)
        {
            //Opening tag
            if ($tag=='B' || $tag=='I' || $tag=='U')
                $this->SetStyle($tag, true);
            if ($tag=='A')
                $this->HREF = $attr['HREF'];
            if ($tag=='BR')
                $this->Ln(5);
        }
    }

    $html
        = 'You can now easily print text mixing different styles: <b>bold</b>, <i>italic</i>,
<u>underlined</u>, or <b><i><u>all at once</u></i></b>!<br><br>You can also insert links on
text, such as <a href="http://www.fpdf.org">www.fpdf.org</a>, or on an image: click on the logo.';

    $pdf = new PDF();
    //First page
    $pdf->AddPage();
    $pdf->SetFont('Arial', '', 20);
    $pdf->Write(5, 'To find out what\'s new in this tutorial, click ');
    $pdf->SetFont('', 'U');
    $link = $pdf->AddLink();
    $pdf->Write(5, 'here', $link);
    $pdf->SetFont('');
    //Second page
    $pdf->AddPage();
    $pdf->SetLink($link);
    $pdf->Image('logo.png', 10, 12, 30, 0, '', 'http://www.fpdf.org');
    $pdf->SetLeftMargin(45);
    $pdf->SetFontSize(14);
    $pdf->WriteHTML($html);
    $pdf->Output();
?>