| Re: header() not being honored? [message #174796 is a reply to message #174795] |
Sun, 10 July 2011 06:47   |
Thomas 'PointedEars'
Messages: 701
Registered: October 2010
Karma:
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Senior Member |
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Andre wrote:
> Le Fri, 08 Jul 2011 08:57:39 -0400, Billy Mays a écrit :
>> Am I misunderstanding how to use the header function? Is there another
>> way to see whats going on? Unfortunately, I'm in a shared hosting
>> environment, PHP: 4.4.9
>
> I alreay had the problem.
> If you attempt to print anything BEFORE the call to header, it skip.
True.
> But any blank line could cause the troube, I had once a blank line in a
> 'required file', something like:
>
> Debug = 1;
AFAIK this is not PHP code.
define('Debug', 1);
or
$Debug = 1;
would be.
> ?>
>
> The blank line between debug and ?> shoule also be removed.
Nonsense. Blank lines in the *generated* output matter, as the response
message body is considered to have started then. What is between `<?php'
and `?>' is not sent to the standard output as-is, but its parsing result
is. The parser ignores all whitespace unless it separates tokens or is
within a string literal (single-quoted, double-quoted, here-doc, or here-
string).
<http://www.php.net/manual/en/tutorial.firstpage.php>
> I still have trouble in a last script, so if someone has more on this..
You need to look *before* `<?php' and *after* `?>' for unwanted whitespace
and Byte Order Marks (BOMs), and *between* those delimiters for *statements*
that *generate* it (an empty line is not). For example, a common mistake is
to store a PHP script encoded in a UTF and attach a BOM (here for UTF-8,
where it is unnecessary and unwise anyway):
<EF><BB><BF><?php
header('...');
?>
A way to find out is
wget -O - http://example.example/index.php > /tmp/out.php
hexedit /tmp/out.php
PointedEars
--
Prototype.js was written by people who don't know javascript for people
who don't know javascript. People who don't know javascript are not
the best source of advice on designing systems that use javascript.
-- Richard Cornford, cljs, <f806at$ail$1$8300dec7(at)news(dot)demon(dot)co(dot)uk>
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