Write HTML tables

Add-On Write HTML tables

Informations

Author:Rick van Buuren
License: FPDF

Description

This script allows you to convert HTML tables to PDF Cells. It can parse:

<table border="border">
where border can be 1 or 0

<tr>
which adds a new row

<td width="width" height="height" bgcolor="bgcolor">
where width and height are integers and bgcolor is HTML color code

It's a really simple script. Inner tags can give some problems; <td><b>big</b> small<td> won't give a proper output for example. It also doesn't place pictures in a correct way, although you can use a table to align a picture:

<table><tr><td width="200">&nbsp;</td><td width="200"><img src="..." width="..." height="..."></td></tr></table>

will align a picture in the middle.

You need to use &nbsp; when you want a blank cell.

Source

<?php
//Based on HTML2PDF by Clément Lavoillotte

require('fpdf.php');

//function hex2dec
//returns an associative array (keys: R, G, B) from a hex html code (e.g. #3FE5AA)
function hex2dec($couleur = "#000000"){
    $R = substr($couleur, 1, 2);
    $rouge = hexdec($R);
    $V = substr($couleur, 3, 2);
    $vert = hexdec($V);
    $B = substr($couleur, 5, 2);
    $bleu = hexdec($B);
    $tbl_couleur = array();
    $tbl_couleur['R']=$rouge;
    $tbl_couleur['G']=$vert;
    $tbl_couleur['B']=$bleu;
    return $tbl_couleur;
}

//conversion pixel -> millimeter in 72 dpi
function px2mm($px){
    return $px*25.4/72;
}

function txtentities($html){
    $trans = get_html_translation_table(HTML_ENTITIES);
    $trans = array_flip($trans);
    return strtr($html, $trans);
}
////////////////////////////////////

class PDF extends FPDF
{
//variables of html parser
protected $B;
protected $I;
protected $U;
protected $HREF;
protected $fontList;
protected $issetfont;
protected $issetcolor;

function __construct($orientation='P', $unit='mm', $format='A4')
{
    //Call parent constructor
    parent::__construct($orientation, $unit, $format);

    //Initialization
    $this->B=0;
    $this->I=0;
    $this->U=0;
    $this->HREF='';

    $this->tableborder=0;
    $this->tdbegin=false;
    $this->tdwidth=0;
    $this->tdheight=0;
    $this->tdalign="L";
    $this->tdbgcolor=false;

    $this->oldx=0;
    $this->oldy=0;

    $this->fontlist=array("arial", "times", "courier", "helvetica", "symbol");
    $this->issetfont=false;
    $this->issetcolor=false;
}

//////////////////////////////////////
//html parser

function WriteHTML($html)
{
    $html=strip_tags($html, "<b><u><i><a><img><p><br><strong><em><font><tr><blockquote><hr><td><tr><table><sup>"); //remove all unsupported tags
    $html=str_replace("\n", '', $html); //replace carriage returns with spaces
    $html=str_replace("\t", '', $html); //replace carriage returns with spaces
    $a=preg_split('/<(.*)>/U', $html, -1, PREG_SPLIT_DELIM_CAPTURE); //explode the string
    foreach($a as $i=>$e)
    {
        if($i%2==0)
        {
            //Text
            if($this->HREF)
                $this->PutLink($this->HREF, $e);
            elseif($this->tdbegin) {
                if(trim($e)!='' && $e!="&nbsp;") {
                    $this->Cell($this->tdwidth, $this->tdheight, $e, $this->tableborder, '', $this->tdalign, $this->tdbgcolor);
                }
                elseif($e=="&nbsp;") {
                    $this->Cell($this->tdwidth, $this->tdheight, '', $this->tableborder, '', $this->tdalign, $this->tdbgcolor);
                }
            }
            else
                $this->Write(5, stripslashes(txtentities($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 OpenTag($tag, $attr)
{
    //Opening tag
    switch($tag){

        case 'SUP':
            if( !empty($attr['SUP']) ) {    
                //Set current font to 6pt     
                $this->SetFont('', '', 6);
                //Start 125cm plus width of cell to the right of left margin         
                //Superscript "1" 
                $this->Cell(2, 2, $attr['SUP'], 0, 0, 'L');
            }
            break;

        case 'TABLE': // TABLE-BEGIN
            if( !empty($attr['BORDER']) ) $this->tableborder=$attr['BORDER'];
            else $this->tableborder=0;
            break;
        case 'TR': //TR-BEGIN
            break;
        case 'TD': // TD-BEGIN
            if( !empty($attr['WIDTH']) ) $this->tdwidth=($attr['WIDTH']/4);
            else $this->tdwidth=40; // Set to your own width if you need bigger fixed cells
            if( !empty($attr['HEIGHT']) ) $this->tdheight=($attr['HEIGHT']/6);
            else $this->tdheight=6; // Set to your own height if you need bigger fixed cells
            if( !empty($attr['ALIGN']) ) {
                $align=$attr['ALIGN'];        
                if($align=='LEFT') $this->tdalign='L';
                if($align=='CENTER') $this->tdalign='C';
                if($align=='RIGHT') $this->tdalign='R';
            }
            else $this->tdalign='L'; // Set to your own
            if( !empty($attr['BGCOLOR']) ) {
                $coul=hex2dec($attr['BGCOLOR']);
                    $this->SetFillColor($coul['R'], $coul['G'], $coul['B']);
                    $this->tdbgcolor=true;
                }
            $this->tdbegin=true;
            break;

        case 'HR':
            if( !empty($attr['WIDTH']) )
                $Width = $attr['WIDTH'];
            else
                $Width = $this->w - $this->lMargin-$this->rMargin;
            $x = $this->GetX();
            $y = $this->GetY();
            $this->SetLineWidth(0.2);
            $this->Line($x, $y, $x+$Width, $y);
            $this->SetLineWidth(0.2);
            $this->Ln(1);
            break;
        case 'STRONG':
            $this->SetStyle('B', true);
            break;
        case 'EM':
            $this->SetStyle('I', true);
            break;
        case 'B':
        case 'I':
        case 'U':
            $this->SetStyle($tag, true);
            break;
        case 'A':
            $this->HREF=$attr['HREF'];
            break;
        case 'IMG':
            if(isset($attr['SRC']) && (isset($attr['WIDTH']) || isset($attr['HEIGHT']))) {
                if(!isset($attr['WIDTH']))
                    $attr['WIDTH'] = 0;
                if(!isset($attr['HEIGHT']))
                    $attr['HEIGHT'] = 0;
                $this->Image($attr['SRC'], $this->GetX(), $this->GetY(), px2mm($attr['WIDTH']), px2mm($attr['HEIGHT']));
            }
            break;
        case 'BLOCKQUOTE':
        case 'BR':
            $this->Ln(5);
            break;
        case 'P':
            $this->Ln(10);
            break;
        case 'FONT':
            if (isset($attr['COLOR']) && $attr['COLOR']!='') {
                $coul=hex2dec($attr['COLOR']);
                $this->SetTextColor($coul['R'], $coul['G'], $coul['B']);
                $this->issetcolor=true;
            }
            if (isset($attr['FACE']) && in_array(strtolower($attr['FACE']), $this->fontlist)) {
                $this->SetFont(strtolower($attr['FACE']));
                $this->issetfont=true;
            }
            if (isset($attr['FACE']) && in_array(strtolower($attr['FACE']), $this->fontlist) && isset($attr['SIZE']) && $attr['SIZE']!='') {
                $this->SetFont(strtolower($attr['FACE']), '', $attr['SIZE']);
                $this->issetfont=true;
            }
            break;
    }
}

function CloseTag($tag)
{
    //Closing tag
    if($tag=='SUP') {
    }

    if($tag=='TD') { // TD-END
        $this->tdbegin=false;
        $this->tdwidth=0;
        $this->tdheight=0;
        $this->tdalign="L";
        $this->tdbgcolor=false;
    }
    if($tag=='TR') { // TR-END
        $this->Ln();
    }
    if($tag=='TABLE') { // TABLE-END
        $this->tableborder=0;
    }

    if($tag=='STRONG')
        $tag='B';
    if($tag=='EM')
        $tag='I';
    if($tag=='B' || $tag=='I' || $tag=='U')
        $this->SetStyle($tag, false);
    if($tag=='A')
        $this->HREF='';
    if($tag=='FONT'){
        if ($this->issetcolor==true) {
            $this->SetTextColor(0);
        }
        if ($this->issetfont) {
            $this->SetFont('arial');
            $this->issetfont=false;
        }
    }
}

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 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);
}

}//end of class

?>

Example

<?php
require('html_table.php');

$pdf=new PDF();
$pdf->AddPage();
$pdf->SetFont('Arial', '', 12);

$html='<table border="1">
<tr>
<td width="200" height="30">cell 1</td><td width="200" height="30" bgcolor="#D0D0FF">cell 2</td>
</tr>
<tr>
<td width="200" height="30">cell 3</td><td width="200" height="30">cell 4</td>
</tr>
</table>';

$pdf->WriteHTML($html);
$pdf->Output();
?>
View the result here.

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Was ist das Problem?

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Wie kann ich das Problem lösen?

Öffnen Sie die aktuelle Log-Datei im Ordner var/logs bzw. app/logs und suchen Sie die zugehörige Fehlermeldung (normalerweise die letzte).

Weitere Informationen

Die Skriptausführung wurde gestoppt, weil irgendetwas nicht korrekt funktioniert. Die eigentliche Fehlermeldung wird aus Sicherheitsgründen hinter dieser Meldung verborgen und findet sich in der aktuellen Log-Datei (siehe oben). Wenn Sie die Fehlermeldung nicht verstehen oder nicht wissen, wie das Problem zu beheben ist, durchsuchen Sie die Contao-FAQs oder besuchen Sie die Contao-Supportseite.