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PHP inserting extra data at start of response body

P: n/a
PHP version: PHP5
Server version: Apache 1.3 and 2.0 (observed on both version)
Platform: observed on Darwin-8.6.0/PPC and FreeBSD-6.1/i686

example:

=====
HTTP/1.1 200 OK
Date: Fri, 30 Jun 2006 09:24:48 GMT
Server: Apache
X-Powered-By: PHP/5.1.4
Content-language: en
ETag: W/"blogurk_wiki:pcache:idhash:1-0!1!0!0!!en!2--20060114114008"
Vary: Accept-Encoding,Cookie
Expires: -1
Cache-Control: private, must-revalidate, max-age=0
Last-modified: Sat, 14 Jan 2006 11:40:08 GMT
Transfer-Encoding: chunked
Content-Type: text/html; charset=utf-8

21af
<!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" xml:lang="en" lang="en"
dir="ltr">
<head>
<meta http-equiv="Content-T...
=====

Things I've noticed:

- browsers don't seem to mind it
- I've only seen hexadecimal characters
- only changes when page content changes (checksum of some kind?)

Can anyone explain this?!

Frase
Jun 30 '06 #1
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2 Replies


P: n/a
ED

"Fraser Tweedale" <s4******@student.uq.edu.au> wrote in message
news:44********@dnews.tpgi.com.au...
PHP version: PHP5
Server version: Apache 1.3 and 2.0 (observed on both version)
Platform: observed on Darwin-8.6.0/PPC and FreeBSD-6.1/i686

example:

=====
HTTP/1.1 200 OK
Date: Fri, 30 Jun 2006 09:24:48 GMT
Server: Apache
X-Powered-By: PHP/5.1.4
Content-language: en
ETag: W/"blogurk_wiki:pcache:idhash:1-0!1!0!0!!en!2--20060114114008"
Vary: Accept-Encoding,Cookie
Expires: -1
Cache-Control: private, must-revalidate, max-age=0
Last-modified: Sat, 14 Jan 2006 11:40:08 GMT
Transfer-Encoding: chunked
Content-Type: text/html; charset=utf-8

21af
<!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" xml:lang="en" lang="en"
dir="ltr">
<head>
<meta http-equiv="Content-T...
=====

Things I've noticed:

- browsers don't seem to mind it
- I've only seen hexadecimal characters
- only changes when page content changes (checksum of some kind?)

Can anyone explain this?!

Frase


Chunked Transfer-Encoding.
the hex chars represent the size of the chunk data.
http://www.w3.org/Protocols/rfc2616/....html#sec3.6.1

cheers
ED
Jun 30 '06 #2

P: n/a
oooooh right. well that all makes sense then :)

cheers. guess I'll read the rfc a bit harder next time :)

t

ED wrote:
"Fraser Tweedale" <s4******@student.uq.edu.au> wrote in message
news:44********@dnews.tpgi.com.au...
PHP version: PHP5
Server version: Apache 1.3 and 2.0 (observed on both version)
Platform: observed on Darwin-8.6.0/PPC and FreeBSD-6.1/i686

example:

=====
HTTP/1.1 200 OK
Date: Fri, 30 Jun 2006 09:24:48 GMT
Server: Apache
X-Powered-By: PHP/5.1.4
Content-language: en
ETag: W/"blogurk_wiki:pcache:idhash:1-0!1!0!0!!en!2--20060114114008"
Vary: Accept-Encoding,Cookie
Expires: -1
Cache-Control: private, must-revalidate, max-age=0
Last-modified: Sat, 14 Jan 2006 11:40:08 GMT
Transfer-Encoding: chunked
Content-Type: text/html; charset=utf-8

21af
<!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" xml:lang="en" lang="en"
dir="ltr">
<head>
<meta http-equiv="Content-T...
=====

Things I've noticed:

- browsers don't seem to mind it
- I've only seen hexadecimal characters
- only changes when page content changes (checksum of some kind?)

Can anyone explain this?!

Frase


Chunked Transfer-Encoding.
the hex chars represent the size of the chunk data.
http://www.w3.org/Protocols/rfc2616/....html#sec3.6.1

cheers
ED

Jun 30 '06 #3

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