The Semantic Web & XHTML+RDFa - DevHunters.com l Webmaster Forum - Web Advertising - Web Design

jamesicus · 10-24-2008, 03:31 PM

On 16 October 2008 the W3C announced XHTML+RDFa as a recommendation. IMO this is an important milestone in the process of implementing the Semantic Web. The Doctype/DTD is now cataloged and usable by the W3C Markup Validator.

By way of example of the use of basic constructs and syntax, I have composed a validated XHTML+RDFa page -- just general information for those who might be interested in the development of the Semantic Web.

James

Hunter1 · 10-24-2008, 04:44 PM

I have been following this a bit as well.

This new system will make older sites that have outdated coding become up to date with very little work. There are a lot of sites out there that would like to enjoy the modern reading of their code but they do not have the option to change or update their script but this will change that.

There are also some downfalls that I can see from this but we will see here very soon what the effects and possibilities are going to be.

Good post!

Webnauts · 10-25-2008, 04:09 PM

Quote:

Originally Posted by Hunter1

I have been following this a bit as well.

This new system will make older sites that have outdated coding become up to date with very little work. There are a lot of sites out there that would like to enjoy the modern reading of their code but they do not have the option to change or update their script but this will change that.

There are also some downfalls that I can see from this but we will see here very soon what the effects and possibilities are going to be.

Good post!

Great post James!

Hunter, reading the post I thought straight away to modify my site's markup to XHTML+RDFa. Wouldn't that be a good idea? Which are the downfalls?

jamesicus · 10-25-2008, 07:16 PM

Quote:

Originally Posted by Webnauts

Great post James!

Thanks, Webnauts.

Quote:

.......... I thought straight away to modify my site's markup to XHTML+RDFa. Wouldn't that be a good idea? Which are the downfalls?

If I may interject .......... I don't think it would be a good idea at this time. There is a big learning curve involved in using XHTML+RDFa in a practical way. I suggest you start off reading the RDF references in my Semantic Web sidngture link and especially RDFa in XHTML: Syntax and Processing -- the concepts are pretty complicated and you may have to re-read it a couple of times before you do full incorporation. But, it will be a good exercise because the Semantic Web is the next major development IMO.

James

jamesicus · 10-25-2008, 07:26 PM

BTW, if you would like to see Triples and Graphs (and source code) used in conjunction with RDF/XML (referenced in the W3C XHTML+RDF link in my previous post) depicted go to this W3C Validation result

James

Webnauts · 10-25-2008, 07:37 PM

James I think I was too quick. I began implementing it on my web site.

I know I have to read the documentation and implement several stuff, but for a start I just added on my all my pages the following PHP script, taking care of the HTML (ascii) codes of my pages:

<?php
$charset = "utf-8";
$mime = "text/html";

function fix_code($buffer) {
return (str_replace(" />", ">", $buffer));
}

if(stristr($_SERVER["HTTP_ACCEPT"],"application/xhtml+xml")) {
# if there's a Q value for "application/xhtml+xml" then also
# retrieve the Q value for "text/html"
if(preg_match("/application\/xhtml\+xml;q=0(\.[1-9]+)/i",
$_SERVER["HTTP_ACCEPT"], $matches)) {
$xhtml_q = $matches[1];
if(preg_match("/text\/html;q=0(\.[1-9]+)/i",
$_SERVER["HTTP_ACCEPT"], $matches)) {
$html_q = $matches[1];
# if the Q value for XHTML is greater than or equal to that
# for HTML then use the "application/xhtml+xml" mimetype
if($xhtml_q >= $html_q) {
$mime = "application/xhtml+xml";
}
}
# if there was no Q value, then just use the
# "application/xhtml+xml" mimetype
} else {
$mime = "application/xhtml+xml";
}
}

# special check for the W3C_Validator
if (stristr($_SERVER["HTTP_USER_AGENT"],"W3C_Validator")) {
$mime = "application/xhtml+xml";
}

# set the prolog_type according to the mime type which was determined
if($mime == "application/xhtml+xml") {
$prolog_type = "<?xml version='1.0' encoding='$charset'?>
<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML+RDFa 1.0//EN' 'http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd'>
<html xmlns='http://www.w3.org/1999/xhtml' version='XHTML+RDFa 1.0' xml:lang='en'>";
} else {
ob_start("fix_code");
$prolog_type = "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'>
<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>";
}
# finally, output the mime type and prolog type
header("Content-Type: $mime;charset=$charset");
header("Vary: Accept");
print $prolog_type;
?>

I tested already with diverse browsers and I have not noticed any compatibility issues. Do you think that what I am doing would harm in any way?

jamesicus · 10-25-2008, 07:58 PM

Quote:

Originally Posted by Webnauts

James I think I was too quick. I began implementing it on my web site.

I know I have to read the documentation and implement several stuff, but for a start I just added on my all my pages the following PHP script, taking care of the HTML (ascii) codes of my pages .......... I tested already with diverse browsers and I have not noticed any compatibility issues. Do you think that what I am doing would harm in any way?

Not at all, Webnauts -- great job! (Valid XHTML+RDFa too!)

(Of course you don't have any RDFa syntax added yet)

James

Webnauts · 10-25-2008, 08:13 PM

Quote:

Originally Posted by jamesicus

Not at all, Webnauts -- great job! (Valid XHTML+RDFa too!)

Great!

Quote:

Originally Posted by jamesicus

(Of course you don't have any RDFa syntax added yet)

You are right. That is the next step.

Thanks, John :)

Webnauts · 10-25-2008, 08:51 PM

James I have a question. I do not use for my "h1" tags the "title" tags content.

I have for example the title "SEO Workers - Search Engine Optimization Consulting Company" and for the h1 tag "SEO & Custom Web Design Experts for Better Search Engine Rankings"

Since I wanted to add a property to my h1 tag, I guess I need to add a meta tag for s dc.title.

What should I use there for the property? The content of my "title" or of the "h1" tag?

jamesicus · 10-25-2008, 11:17 PM

Quote:

Originally Posted by Webnauts

James I have a question. I do not use for my "h1" tags the "title" tags content.

I have for example the title "SEO Workers - Search Engine Optimization Consulting Company" and for the h1 tag "SEO & Custom Web Design Experts for Better Search Engine Rankings"

Since I wanted to add a property to my h1 tag, I guess I need to add a meta tag for s dc.title.

What should I use there for the property? The content of my "title" or of the "h1" tag?

Check out Dublin Core (DC) Metadata Element Set first, John.

James

Webnauts · 10-25-2008, 11:52 PM

I checked Dublin core. Thanks James.

I guess I have one very last question that is giving me a headache:

http://www.w3.org/2005/08/online_xsl...eoworkers.com/

I get an error: unparseable - text/plain not visibly XML. Can you tell what that can be?

Webnauts · 10-31-2008, 10:00 AM

Do you think you can help me with a php script, since I can't get mine working properly?

jamesicus · 11-03-2008, 11:27 PM

Sorry I didn't get back to you sooner, Webnauts. I will have to study your page further.

Webnauts and Hunter1: Thanks. I composed this page to illustrate the use of the XHTML+RDFa Doctype/DTD, and the syntax of three primary RDFa elements: | about | property | typeof | together with an example FOAF (Friend Of A Friend) and Creative Commons constructs -- for those who might want to experiment with creating XHTML+RDFa pages after reading the W3C RDFa Primer and RDFa recommendation RDFa in XHTML: Syntax and Processing.

This is actually my own attempt to understand how XHTML+RDFa documents are constructed and function.

James

Webnauts · 11-03-2008, 11:35 PM

Quote:

Originally Posted by jamesicus

Sorry I didn't get back to you sooner, Webnauts. I will have to study your page further.

Webnauts and Hunter1: Thanks. I composed this page to illustrate the use of the XHTML+RDFa Doctype/DTD, and the syntax of three primary RDFa elements: | about | property | typeof | together with an example FOAF (Friend Of A Friend) and Creative Commons constructs -- for those who might want to experiment with creating XHTML+RDFa pages after reading the W3C RDFa Primer and RDFa recommendation RDFa in XHTML: Syntax and Processing.

This is actually my own attempt to understand how XHTML+RDFa documents are constructed and function.

James

Hi James,

I switched back to XHMTL Strict because I could not get my PHP parser working correctly.

If I had an appropriate functional parser, I would not have had to change back. I know already the above you have mentioned FOAF, etc).

Do you think you could share the parser script? I would even pay a fee.

Thanks a lot in advance,

John

jamesicus · 11-04-2008, 12:04 AM

Quote:

Originally Posted by Webnauts

.......... I switched back to XHMTL Strict because I could not get my PHP parser working correctly .......... Do you think you could share the parser script? I would even pay a fee ..........

I don't know what you mean by "parser script", John. I will be happy to share any coding, scripts, etc. -- no charge of course.

James

Webnauts · 11-04-2008, 12:14 AM

The PHP script I am about is for serving up XHTML with the correct MIME type, and being cross browser compatible.

This one did not do the work as it should so far :

<?php
$charset = "utf-8";
$mime = "text/html;";

function fix_code($buffer) {
return (str_replace(" />", ">", $buffer));
}

if(stristr($_SERVER["HTTP_ACCEPT"],"application/xhtml+xml")) {
# if there's a Q value for "application/xhtml+xml" then also
# retrieve the Q value for "text/html"
if(preg_match("/application\/xhtml\+xml;q=0(\.[1-9]+)/i",
$_SERVER["HTTP_ACCEPT"], $matches)) {
$xhtml_q = $matches[1];
if(preg_match("/text\/html;q=0(\.[1-9]+)/i",
$_SERVER["HTTP_ACCEPT"], $matches)) {
$html_q = $matches[1];
# if the Q value for XHTML is greater than or equal to that
# for HTML then use the "application/xhtml+xml" mimetype
if($xhtml_q >= $html_q) {
$mime = "application/xhtml+xml";
}
}
# if there was no Q value, then just use the
# "application/xhtml+xml" mimetype
} else {
$mime = "application/xhtml+xml";
}
}

# special check for the W3C_Validator
if (stristr($_SERVER["HTTP_USER_AGENT"],"W3C_Validator")) {
$mime = "application/xhtml+xml";
}

# set the prolog_type according to the mime type which was determined
if($mime == "application/xhtml+xml") {
$prolog_type = "<?xml version=\"1.0\" encoding=\"$charset\"?>
<?xml-stylesheet type=\"text/xsl\" href=\"/copy.xsl\"?>
<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML+RDFa 1.0//EN' 'http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd'>
<html xmlns='http://www.w3.org/1999/xhtml' version='XHTML+RDFa 1.0' xml:lang='en'>";
}
else {
ob_start("fix_code");
$prolog_type = "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'>
<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>";
}
# finally, output the mime type and prolog type
header("Content-Type: $mime;charset=$charset");
header("Vary: Negotiate,Accept,");
print $prolog_type;
?>

I am sure you are using a script for that. Do you understand what I mean?

Thanks James. :)

jamesicus · 11-04-2008, 12:45 AM

Quote:

Originally Posted by Webnauts

The PHP script I am about is for serving up XHTML with the correct MIME type, and being cross browser compatible .......... Do you understand what I mean? ..........

Ah, yes, John. I use various iterations for serving XHTML via content negotiation. Here is the simple core form for XHTML+RDFa -- modify it as you wish, John.

<?php

# For MSIE browsers
if (stristr($_SERVER["HTTP_USER_AGENT"],"MSIE")) {
$mime = "text/html";
$charset = "utf-8";
$prolog_type = "
<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML+RDFa 1.0//EN'
'http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd'>
<html xmlns='http://www.w3.org/1999/xhtml' version='XHTML+RDFa 1.0'
xml:lang='en'>";
}

# For other browsers
else {
$mime = "application/xhtml+xml";
$charset = "utf-8";
$prolog_type = "<?xml version='1.0' encoding='$charset'?>
<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML+RDFa 1.0//EN'
'http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd'>
<html xmlns='http://www.w3.org/1999/xhtml' version='XHTML+RDFa 1.0'
xml:lang='en'>";
}

# Generate the mime type and prolog type
header("Content-Type: $mime; charset=$charset");
header("Vary: Negotiate, Accept");
print $prolog_type;

?>

jamesicus · 11-04-2008, 01:01 AM

John -- or for serving XHTML 1.0 (strict) via content-negotiation:

<?php

# For MSIE browsers
if (stristr($_SERVER["HTTP_USER_AGENT"],"MSIE")) {
$mime = "text/html";
$charset = "utf-8";
$prolog_type = "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN'
'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'>
<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en-us' lang='en-us'>";
}

# For other browsers
else {
$mime = "application/xhtml+xml";
$charset = "utf-8";
$prolog_type = "<?xml version='1.0' encoding='$charset'?>
<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN'
'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'>
<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en-us' lang='en-us'>";
}

# Generate the mime type and prolog type
header("Content-Type: $mime; charset=$charset");
header("Vary: Negotiate, Accept");
print $prolog_type;

?>

Webnauts · 11-04-2008, 01:32 AM

James did anybody ever tell you that you RULE? I assume yes.
But just in case I am wrong, then I must admit that you rule!

Thank you so much for the excellent support! I implemented a test page and it works great!

Please PM me your paypal. I would love to buy you a beer. Or anything else you wish. :)

jamesicus · 11-04-2008, 09:28 AM

Quote:

Originally Posted by Webnauts

.......... I must admit that you rule! ..........

I will read this to my wife and cat -- they don't understand that! :)

Quote:

Please PM me your paypal. I would love to buy you a beer ..........

Thanks, John -- no need for that -- but maybe we will quaff one together some day!

Use Web-Sniffer View HTTP Request and Response Header to check how your pages are being served -- just specify the User-Agent (Browser) you wish to check for and leave everything else at default. Among other things, the content (MIME) type and character encoding will be displayed along with the page source code.

James

10-24-2008, 03:31 PM	#1 (permalink)
jamesicus New Hunter Join Date: Oct 2008 Posts: 15 Hunter Bux: 0 iTrader: (0)	The Semantic Web & XHTML+RDFa On 16 October 2008 the W3C announced XHTML+RDFa as a recommendation. IMO this is an important milestone in the process of implementing the Semantic Web. The Doctype/DTD is now cataloged and usable by the W3C Markup Validator. By way of example of the use of basic constructs and syntax, I have composed a validated XHTML+RDFa page -- just general information for those who might be interested in the development of the Semantic Web. James __________________ XHTML 1.0 (strict) page - table free -- fluid three column layout Serving XHTML - content negotiation/selected content (MIME) type All pages Interoperable and with Validated Markup/CSS

10-24-2008, 04:44 PM	#2 (permalink)
Hunter1 Senior Staff 7up Pinball Champion! Baccarat Champion! Chingy Powerballin Champion! Join Date: Mar 2007 Location: Indiana USA Posts: 2,296 Hunter Bux: 18,026.33 iTrader: (9)	I have been following this a bit as well. This new system will make older sites that have outdated coding become up to date with very little work. There are a lot of sites out there that would like to enjoy the modern reading of their code but they do not have the option to change or update their script but this will change that. There are also some downfalls that I can see from this but we will see here very soon what the effects and possibilities are going to be. Good post! __________________ l GuideHunters.com l Devhunters.net Directory l Web Directory l Be a star in The DevHunters Directory

10-25-2008, 07:26 PM	#5 (permalink)
jamesicus New Hunter Join Date: Oct 2008 Posts: 15 Hunter Bux: 0 iTrader: (0)	BTW, if you would like to see Triples and Graphs (and source code) used in conjunction with RDF/XML (referenced in the W3C XHTML+RDF link in my previous post) depicted go to this W3C Validation result James __________________ XHTML 1.0 (strict) page - table free -- fluid three column layout Serving XHTML - content negotiation/selected content (MIME) type All pages Interoperable and with Validated Markup/CSS

10-25-2008, 07:37 PM	#6 (permalink)
Webnauts New Hunter Join Date: Oct 2008 Location: Europe Posts: 16 Hunter Bux: 0 iTrader: (0)	XHTML+RDFa James I think I was too quick. I began implementing it on my web site. I know I have to read the documentation and implement several stuff, but for a start I just added on my all my pages the following PHP script, taking care of the HTML (ascii) codes of my pages: <?php $charset = "utf-8"; $mime = "text/html"; function fix_code($buffer) { return (str_replace(" />", ">", $buffer)); } if(stristr($_SERVER["HTTP_ACCEPT"],"application/xhtml+xml")) { # if there's a Q value for "application/xhtml+xml" then also # retrieve the Q value for "text/html" if(preg_match("/application\/xhtml\+xml;q=0(\.[1-9]+)/i", $_SERVER["HTTP_ACCEPT"], $matches)) { $xhtml_q = $matches[1]; if(preg_match("/text\/html;q=0(\.[1-9]+)/i", $_SERVER["HTTP_ACCEPT"], $matches)) { $html_q = $matches[1]; # if the Q value for XHTML is greater than or equal to that # for HTML then use the "application/xhtml+xml" mimetype if($xhtml_q >= $html_q) { $mime = "application/xhtml+xml"; } } # if there was no Q value, then just use the # "application/xhtml+xml" mimetype } else { $mime = "application/xhtml+xml"; } } # special check for the W3C_Validator if (stristr($_SERVER["HTTP_USER_AGENT"],"W3C_Validator")) { $mime = "application/xhtml+xml"; } # set the prolog_type according to the mime type which was determined if($mime == "application/xhtml+xml") { $prolog_type = "<?xml version='1.0' encoding='$charset'?> <!DOCTYPE html PUBLIC '-//W3C//DTD XHTML+RDFa 1.0//EN' 'http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd'> <html xmlns='http://www.w3.org/1999/xhtml' version='XHTML+RDFa 1.0' xml:lang='en'>"; } else { ob_start("fix_code"); $prolog_type = "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'> <html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>"; } # finally, output the mime type and prolog type header("Content-Type: $mime;charset=$charset"); header("Vary: Accept"); print $prolog_type; ?> I tested already with diverse browsers and I have not noticed any compatibility issues. Do you think that what I am doing would harm in any way? __________________ SEO Workers - Search Engine Analysts & Optimization Experts

10-25-2008, 08:51 PM	#9 (permalink)
Webnauts New Hunter Join Date: Oct 2008 Location: Europe Posts: 16 Hunter Bux: 0 iTrader: (0)	James I have a question. I do not use for my "h1" tags the "title" tags content. I have for example the title "SEO Workers - Search Engine Optimization Consulting Company" and for the h1 tag "SEO & Custom Web Design Experts for Better Search Engine Rankings" Since I wanted to add a property to my h1 tag, I guess I need to add a meta tag for s dc.title. What should I use there for the property? The content of my "title" or of the "h1" tag? __________________ SEO Workers - Search Engine Analysts & Optimization Experts

10-25-2008, 11:52 PM	#11 (permalink)
Webnauts New Hunter Join Date: Oct 2008 Location: Europe Posts: 16 Hunter Bux: 0 iTrader: (0)	I checked Dublin core. Thanks James. I guess I have one very last question that is giving me a headache: http://www.w3.org/2005/08/online_xsl...eoworkers.com/ I get an error: unparseable - text/plain not visibly XML. Can you tell what that can be? __________________ SEO Workers - Search Engine Analysts & Optimization Experts

10-31-2008, 10:00 AM	#12 (permalink)
Webnauts New Hunter Join Date: Oct 2008 Location: Europe Posts: 16 Hunter Bux: 0 iTrader: (0)	Do you think you can help me with a php script, since I can't get mine working properly? __________________ SEO Workers - Search Engine Analysts & Optimization Experts

11-03-2008, 11:27 PM	#13 (permalink)
jamesicus New Hunter Join Date: Oct 2008 Posts: 15 Hunter Bux: 0 iTrader: (0)	Sorry I didn't get back to you sooner, Webnauts. I will have to study your page further. Webnauts and Hunter1: Thanks. I composed this page to illustrate the use of the XHTML+RDFa Doctype/DTD, and the syntax of three primary RDFa elements: \| about \| property \| typeof \| together with an example FOAF (Friend Of A Friend) and Creative Commons constructs -- for those who might want to experiment with creating XHTML+RDFa pages after reading the W3C RDFa Primer and RDFa recommendation RDFa in XHTML: Syntax and Processing. This is actually my own attempt to understand how XHTML+RDFa documents are constructed and function. James __________________ XHTML 1.0 (strict) page - table free -- fluid three column layout Serving XHTML - content negotiation/selected content (MIME) type All pages Interoperable and with Validated Markup/CSS

11-04-2008, 12:14 AM	#16 (permalink)
Webnauts New Hunter Join Date: Oct 2008 Location: Europe Posts: 16 Hunter Bux: 0 iTrader: (0)	The PHP script I am about is for serving up XHTML with the correct MIME type, and being cross browser compatible. This one did not do the work as it should so far : <?php $charset = "utf-8"; $mime = "text/html;"; function fix_code($buffer) { return (str_replace(" />", ">", $buffer)); } if(stristr($_SERVER["HTTP_ACCEPT"],"application/xhtml+xml")) { # if there's a Q value for "application/xhtml+xml" then also # retrieve the Q value for "text/html" if(preg_match("/application\/xhtml\+xml;q=0(\.[1-9]+)/i", $_SERVER["HTTP_ACCEPT"], $matches)) { $xhtml_q = $matches[1]; if(preg_match("/text\/html;q=0(\.[1-9]+)/i", $_SERVER["HTTP_ACCEPT"], $matches)) { $html_q = $matches[1]; # if the Q value for XHTML is greater than or equal to that # for HTML then use the "application/xhtml+xml" mimetype if($xhtml_q >= $html_q) { $mime = "application/xhtml+xml"; } } # if there was no Q value, then just use the # "application/xhtml+xml" mimetype } else { $mime = "application/xhtml+xml"; } } # special check for the W3C_Validator if (stristr($_SERVER["HTTP_USER_AGENT"],"W3C_Validator")) { $mime = "application/xhtml+xml"; } # set the prolog_type according to the mime type which was determined if($mime == "application/xhtml+xml") { $prolog_type = "<?xml version=\"1.0\" encoding=\"$charset\"?> <?xml-stylesheet type=\"text/xsl\" href=\"/copy.xsl\"?> <!DOCTYPE html PUBLIC '-//W3C//DTD XHTML+RDFa 1.0//EN' 'http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd'> <html xmlns='http://www.w3.org/1999/xhtml' version='XHTML+RDFa 1.0' xml:lang='en'>"; } else { ob_start("fix_code"); $prolog_type = "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'> <html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>"; } # finally, output the mime type and prolog type header("Content-Type: $mime;charset=$charset"); header("Vary: Negotiate,Accept,"); print $prolog_type; ?> I am sure you are using a script for that. Do you understand what I mean? Thanks James. :) __________________ SEO Workers - Search Engine Analysts & Optimization Experts Last edited by Webnauts; 11-04-2008 at 12:25 AM.

11-04-2008, 01:01 AM	#18 (permalink)
jamesicus New Hunter Join Date: Oct 2008 Posts: 15 Hunter Bux: 0 iTrader: (0)	John -- or for serving XHTML 1.0 (strict) via content-negotiation: <?php # For MSIE browsers if (stristr($_SERVER["HTTP_USER_AGENT"],"MSIE")) { $mime = "text/html"; $charset = "utf-8"; $prolog_type = "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'> <html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en-us' lang='en-us'>"; } # For other browsers else { $mime = "application/xhtml+xml"; $charset = "utf-8"; $prolog_type = "<?xml version='1.0' encoding='$charset'?> <!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'> <html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en-us' lang='en-us'>"; } # Generate the mime type and prolog type header("Content-Type: $mime; charset=$charset"); header("Vary: Negotiate, Accept"); print $prolog_type; ?> __________________ XHTML 1.0 (strict) page - table free -- fluid three column layout Serving XHTML - content negotiation/selected content (MIME) type All pages Interoperable and with Validated Markup/CSS

11-04-2008, 01:32 AM	#19 (permalink)
Webnauts New Hunter Join Date: Oct 2008 Location: Europe Posts: 16 Hunter Bux: 0 iTrader: (0)	James did anybody ever tell you that you RULE? I assume yes. But just in case I am wrong, then I must admit that you rule! Thank you so much for the excellent support! I implemented a test page and it works great! Please PM me your paypal. I would love to buy you a beer. Or anything else you wish. :) __________________ SEO Workers - Search Engine Analysts & Optimization Experts