-- Matthew Ishii <[EMAIL PROTECTED]> wrote
(on Tuesday, 30 September 2008, 07:13 PM -0700):
> I am not sure if this has been brought up before (though most likely
> it has) however I will anyway, I am having issues validating my pages
> against the W3C webstandards for proper HTML markup. I am using the
> XHTML1_STRICT Doctype.
>
> It seems like the phtml webpage format is having difficulties working
> with the standards, for example, I have a 'back' link that is using
> the SERVER 'HTTP_REFERER' variable to direct users to the last visited
> page. When I attempt to validate the page with the following markup,
> I receive the following errors:
>
> Markup -
>
> <p class="padded_paragraph"><a href="<?php echo
> $_SERVER['HTTP_REFERER'] ?>" class="bold">Back</a></p>
>
> Error(s) -
>
> Line 92, Column 37: character "<" is the first character of a
> delimiter but occurred as data.
>
> Warning Line 93, Column 9: character "<" is the first character of a
> delimiter but occurred as data.
>
> <b>Notice</b>: Undefined index: HTTP_REFERER in
> <b>/home1/ioforgec/zend/applic
>
> What I find strange is the notice, that the validation service catches
> in the source, but when viewed by me in the browser and when viewed in
> the post-rendered source I dont see such a notice. I suppose the
> HTTP_REFERER is not set for a robotic user, which is what the
> validation service must be manifesting as to my application. But how
> can I prevent this from causing the page not to validate?
A couple things I see here. First, what are you validating? the .phtml
file itself, or a page that renders that view script? Second, yes,
HTTP_REFERER is something that may or may not be present based on the
current request environment
I'd suggest creating a view helper that generates the backlink; you
could then add some logic in the helper to check for the existence of
the key, and if not present, simply emit an empty string or an anchor.
It might look like this:
class My_View_Helper_BackLink extends Zend_View_Helper_Abstract
{
public function backLink()
{
$link = '#';
if (array_key_exists('HTTP_REFERER', $_SERVER)) {
$link = $_SERVER['HTTP_REFERER'];
}
return '<a href="' . $link . '" class="bold">Back</a>';
}
}
--
Matthew Weier O'Phinney
Software Architect | [EMAIL PROTECTED]
Zend Framework | http://framework.zend.com/
