submit form on clicking link

dkemas · Jun 15, 2012

I am using dompdf and php to create a pdf page, this works fine when I pass some html to it i.e.

Code:

<?php 
require_once("dompdf/dompdf_config.inc.php");

$html ='<html><body>'.
'<p>sample pdf</p>'.
'</body></html>';

$dompdf = new DOMPDF();
$dompdf->load_html($html);
$dompdf->render();
$dompdf->stream("sample.pdf");
?>

But I want to pass the html of the page to it, which is where I was hoping javascript (jquery is running on the site) would help.

I was thinking that the user would click a link 'click here to save this page as pdf' which would then fire a form submission back to the same page so I could do something like

Code:

<?php 
require_once("dompdf/dompdf_config.inc.php");

$html = $_POST['pagecode'];

$dompdf = new DOMPDF();
$dompdf->load_html($html);
$dompdf->render();
$dompdf->stream("sample.pdf");
?>

which would output the html of the page.

My question is, how do I do the javascript part to grab the html of the page and submit it if the users click a link to generate the pdf? Is this a good way of going about it?

Thanks

vacunita · Jun 15, 2012

Not the most elegant solution, but something like this should give you the html code inside the html tags of the page in a hidden form element.

Code:

function getCode()
{
var Thedoc = document.getElementsByTagName('html')[0].innerHTML;
var TheInput = document.getElementById('pagecontent');
TheInput.value = Thedoc;
document.forms.toPDF.submit();
}

HTML:

<form action = "pdfpage.php" method="POST" name="toPDF">
<a href="#" onclick="getCode(); return false;">Click Me</a>
<input type=hidden id="pagecontent" name="pagecode">
</form>

I typed this directly into the reply box so its possible there are some mistakes, but you should get the basic gist of how its done.

----------------------------------
Phil AKA Vacunita
----------------------------------
Ignorance is not necessarily Bliss, case in point:
Unknown has caused an Unknown Error on Unknown and must be shutdown to prevent damage to Unknown.

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submit form on clicking link

dkemas

Programmer

vacunita

Programmer

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