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IRG
Joined: 10 Jun 2009
Posts: 10
Location: london
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 Posted: Mon Jun 15, 2009 5:41 pm Post subject: qfc and xhtml document |
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Hi all,
I have a wizard which works fine on its own. However, when I put it into an xhtml document I get Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\DTRsurvey\test.php:9) in C:\xampp\php\PEAR\HTML\QuickForm\Action\Jump.php on line 158 when I try to move to page 2 of the wizard. I cannot put the form in the beginning of the page as I have to have a header in the beginning of the page. What should I do in order for qfc to process my page?
This is my test page.
| Code: | <?php session_start();?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Test page</title>
</head>
<body>
<?php
require_once 'HTML/QuickForm/Controller.php';
require_once 'HTML/QuickForm/Action/Next.php';
require_once 'HTML/QuickForm/Action/Back.php';
require_once 'HTML/QuickForm/Action/Jump.php';
require_once 'HTML/QuickForm/Action/Display.php';
class NewPageTest extends HTML_QuickForm_Page
{
private $surveyID;
private $sectionID;
private $sectionTitle;
function __construct($formName, $surveyID, $sectionID, $sectionTitle,$method = 'post', $target = '', $attributes = null)
{
parent::__construct($formName,$method = 'post', $target = '', $attributes = null);
$this->surveyID = $surveyID;
$this->sectionID = $sectionID;
$this->sectionTitle = $sectionTitle;
}
function buildForm()
{
$this->_formBuilt = true;
//create form
$this->addElement('header',null,$this->sectionTitle);
$this->addElement('text','name','Enter name:',array('size' => 30));
if($this->sectionID == 1) {
$this->addElement('submit', $this->getButtonName('next'), 'Next >>');}
if($this->sectionID == 2) {
$prevnext[] = & $this->createElement('submit', $this->getButtonName('back'), 'Back <<');
$prevnext[] = & $this->createElement('submit', $this->getButtonName('next'), 'Next >>');
$this->addGroup($prevnext,null,'',' ',false);
}
$this->setDefaultAction('next');
}
}
class ActionProcess extends HTML_QuickForm_Action {
function perform(&$page, $actionName)
{
}
}
$quest =& new HTML_QuickForm_Controller('Questionnaire');
$quest->addPage(new NewPageTest('Page1',1,1,'Test Page 1'));
$quest->addPage(new NewPageTest('Page2',1,2,'Test Page 2'));
$quest->addAction('next', new HTML_QuickForm_Action_Display());
$quest->addAction('next', new HTML_QuickForm_Action_Next());
$quest->addAction('back', new HTML_QuickForm_Action_Back());
$quest->addAction('jump', new HTML_QuickForm_Action_Jump());
#process form
$quest->addAction('process', new ActionProcess());
$quest->run();
?>
</body>
</html>
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Please help. |
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mark
Joined: 07 Jan 2007
Posts: 1230
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| Posted: Mon Jun 15, 2009 11:20 pm Post subject: |
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Well, the error message is quite descriptive, isn't it?
Is line 9 the session_start() call? If yes, call this function as early as possible and you're done. There's a hack that would allow to leave this call there, but moving the call is much cleaner IMHO. |
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IRG
Joined: 10 Jun 2009
Posts: 10
Location: london
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| Posted: Thu Jun 18, 2009 5:14 pm Post subject: |
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Hi Mark,
Thank you for your answer. is on the first line and not on the line #9. I managed to solve this probllem by adding
after . |
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mark
Joined: 07 Jan 2007
Posts: 1230
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| Posted: Thu Jun 18, 2009 6:23 pm Post subject: |
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ob_start() is the mentioned dirty solution. 
If you tell us more about line 9, you might get a cleaner solution here. |
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