W3C home > Mailing lists > Public > www-validator@w3.org > June 2009

Re: proper use of validation icons

From: Michael A. Peters <mpeters@mac.com>
Date: Mon, 08 Jun 2009 08:29:45 -0700
Message-id: <4A2D2E69.4090606@mac.com>
To: www-validator@w3.org
Andreas Prilop wrote:
> On Sun, 7 Jun 2009, Michael A. Peters wrote:
> 
>> I look at $_SERVER['HTTP_ACCEPT']
>> If it is not set or does not contain application/xhtml+xml
>> then I send an html 4.01 page.
> 
> What do you do with
> 
>    Accept: application/xhtml+xml; q=0
> 
> ?
> 

I send the document as xhtml.

here's the gist of it -

if (! isset($usexml)) {
    $usexml=1;
    }
if ($usexml == 1) {
    if (isset( $_SERVER['HTTP_ACCEPT'] )) {
       if(! strpos( $_SERVER['HTTP_ACCEPT'], "application/xhtml+xml" ) ) {
          $usexml=0;
          }
       } else {
       $usexml=0;
       }
    }

// W3C_Validator
if (isset($_SERVER['HTTP_USER_AGENT'])) {
    $ua = $_SERVER['HTTP_USER_AGENT'];
    } else {
    $ua = 'unknown';
    }

if ($usexml == 0) {
    $test_ua = strtolower($ua);
    $pos = strpos($test_ua,'validator');

    if($pos === false) {
       $usexml = 0;
       } else {
       $usexml = 1;
       }
    }

$myxhtml = new DOMDocument("1.0","UTF-8");
$myxhtml->preserveWhiteSpace = false;
$myxhtml->formatOutput = true;
if ($usexml == 0) {
    $xmlstring = $htmldtd . "<html></html>";
    } else {
    $xmlstring = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" . 
$xhtmldtd . "<html></html>";
    }
$myxhtml->loadXML($xmlstring);
$elements = $myxhtml->getElementsByTagName("html");
$xmlHtml = $elements->item(0);
if ($usexml == 1) {
    $xmlHtml->setAttribute("xmlns","http://www.w3.org/1999/xhtml");
 
$xmlHtml->setAttributeNS('http://www.w3.org/XML/1998/namespace','xml:lang','en');
    }

--

$myxhtml is now a DOMDocument object with a doctype appropriate for the 
client.

$xmlHtml is the root html node.

children are added to it - and finally

if ($usexml == 0) {
    print $myxhtml->saveHTML();
    } else {
    print $myxhtml->saveXML();
    }

serves it.
Received on Monday, 8 June 2009 15:30:23 GMT

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