TCPDF ERROR: Some data has already been output to browser, can't send PDF file - Page 1

1

Le 27/05/2013 à 15:07

hi, I'm trying this code that creates a div dynamically by values taken from a form ...

<?php
$html = "
<style>

#contenitore {
width:".$width.";
height:".$height.";
background:#ffffff;
display:table;
}
#testo{
display:table-cell; 
vertical-align:middle;
text-align:center;}

span.primariga {
font-size:".$grandezza_font1.";
font-family:".$tipo_font1.";

}
span.secondariga {
font-size:".$grandezza_font2.";
font-family:".$tipo_font2.";

}


</style>

<div id=contenitore>
<div id=testo>
<span class=primariga>".$prima_riga."</span><br>
<span class=secondariga>".$seconda_riga."</span>
</div>
</div>";

echo $html;

require_once(dirname(__FILE__).'/html2pdf.class.php');
    $html2pdf = new HTML2PDF('P','A4','it');
    $html2pdf->WriteHTML($html);
    $html2pdf->Output('exemple.pdf');
?>

but the result is this error:

Warning: Cannot modify header information - headers already sent by (output started at /xxx/xxx/xxx/xxx/timbri/indextimbri.php:14) in /xxx/xxx/xxx/xxx/timbri/_tcpdf_5.0.002/tcpdf.php on line 6122
TCPDF ERROR: Some data has already been output to browser, can't send PDF file

can you help me please?

2

Le 29/05/2013 à 09:44

Hello guys !

Try simply to remote echo $html ;

You display $html before do $htm2pdf->Output() but echo send date before $htm2pdf->Output() so that's why you got this error !!

Have a nice day

3

Le 29/05/2013 à 14:31

hello and thank you for your reply ... I've moved "echo" after the code like you said but I have always the same error at line 14, where there is ...

<?php
$width = 403;
$height = 142;

// PRIMA RIGA
$prima_riga = $_POST['prima_riga'];
$grandezza_font1 = $_POST['grandezza_font'];
$tipo_font1 = $_POST['tipo_font1'];
$grassetto1 = $_POST['checkb1'];
$corsivo1 = $_POST['checkc1'];

ecc... ?>

which are the variables that make up the html code I want to print to pdf ...
how can I do? thanks

4

Le 29/05/2013 à 14:47

Hello again , try to move your require_once at the first line after <?php , tcpdf.php uses some header('xxxx') fonction on the files, maybe the problem is here...

And i don't understand what you want to do at all ... So if you can explain a little bit more it could be great

5

Le 29/05/2013 à 15:22

practically is a online application for creating stamps ... the user changes the lines of text that are placed in the variables that change the css ... everything is written in a variable ($ html) and should be saved in pdf ...here's the code

line 14 <?php
$width = 403;
$height = 142;

// PRIMA RIGA
$prima_riga = $_POST['prima_riga'];
$grandezza_font1 = $_POST['grandezza_font'];
$tipo_font1 = $_POST['tipo_font1'];
$grassetto1 = $_POST['checkb1'];
$corsivo1 = $_POST['checkc1'];

if (isset ($grassetto1)) {
$grassetto1 ="bold";
}else{
$grassetto1="normal";}

if (isset ($corsivo1)) {
$corsivo1 ="italic";
}else{
$corsivo1="normal";}

// SECONDA RIGA
$seconda_riga = $_POST['seconda_riga'];
$grandezza_font2 = $_POST['grandezza_font2'];
$tipo_font2 = $_POST['tipo_font2'];
$grassetto2 = $_POST['checkb2'];
$corsivo2 = $_POST['checkc2'];

if (isset ($grassetto2)) {
$grassetto2 ="bold";
}else{
$grassetto2="normal";}

if (isset ($corsivo2)) {
$corsivo2 ="italic";
}else{
$corsivo2="normal";}

// TERZA RIGA
$terza_riga = $_POST['terza_riga'];
$grandezza_font3 = $_POST['grandezza_font3'];
$tipo_font3 = $_POST['tipo_font3'];
$grassetto3 = $_POST['checkb3'];
$corsivo3 = $_POST['checkc3'];

if (isset ($grassetto3)) {
$grassetto3 ="bold";
}else{
$grassetto3="normal";}

if (isset ($corsivo3)) {
$corsivo3 ="italic";
}else{
$corsivo3="normal";}

// QUARTA RIGA
$quarta_riga = $_POST['quarta_riga'];
$grandezza_font4 = $_POST['grandezza_font4'];
$tipo_font4 = $_POST['tipo_font4'];
$grassetto4 = $_POST['checkb4'];
$corsivo4 = $_POST['checkc4'];

if (isset ($grassetto4)) {
$grassetto4 ="bold";
}else{
$grassetto4="normal";}

if (isset ($corsivo4)) {
$corsivo4 ="italic";
}else{
$corsivo4="normal";}
?> 


<?php
$html = "
<page><style>

#contenitore {
width:".$width.";
height:".$height.";
background:#ffffff;
display:table;
}
#testo{
display:table-cell; 
vertical-align:middle;
text-align:center;
line-height:5px;}


p.primariga {
font-size:".$grandezza_font1.";
font-family:".$tipo_font1.";
color:#000000;
margin-top:10px;
margin-bottom:20px;
font-weight:".$grassetto1.";
font-style:".$corsivo1.";
line-height:10px;
}
p.secondariga {
font-size:".$grandezza_font2.";
font-family:".$tipo_font2.";
color:#000000;
margin-bottom:20px;
font-weight:".$grassetto2.";
font-style:".$corsivo2.";
}
p.terzariga {
font-size:".$grandezza_font3.";
font-family:".$tipo_font3.";
color:#000000;
margin-bottom:20px;
font-weight:".$grassetto3.";
font-style:".$corsivo3.";
}
p.quartariga {
font-size:".$grandezza_font4.";
font-family:".$tipo_font4.";
color:#000000;
margin-bottom:20px;
font-weight:".$grassetto4.";
font-style:".$corsivo4.";
}


</style>

<div id=contenitore>
<div id=testo>
<p class=primariga>".$prima_riga."</p>
<p class=secondariga>".$seconda_riga."</p>
<p class=terzariga>".$terza_riga."</p>
<p class=terzariga>".$quarta_riga."</p>
</div>
</div></page>";


require_once(dirname(__FILE__).'/html2pdf.class.php');
  $html2pdf = new HTML2PDF('P','A4','it');
    $html2pdf->WriteHTML($html);
    $html2pdf->Output('exemple.pdf');
	
	echo $html;
?>