header problem

hello
I recentrly uploaded my project from localhost to a hosting and found many
errors and warnings which didnt have in local. one of the most annoying one
is header('Location xxx').
I have used header to redirect users from pages, and kinda used it alot. i
know about the whitespace causing warning, but most of the pages i'm sending
users got html and php mixed so i'm confused about how to remove whitespace
in a html/php file. the error is :
Warning: Cannot modify header information - headers already sent by ....
here is a simple example, user update page :
if($valid)
{
$msg='111';
$user->dbupdate();
header("Location: /admin/index.php?msg=$msg");

}
else
{
foreach($errors as $val)
echo '

'.$val.'

Re: header problem

Hi Blueman. As soon as ANYTHING has been drawn to the browser, you
cannot use a header command. So you need to work through all of your
code, and ensure that all of your logic that could result in a header
call is run BEFORE you send any html code. Is going to be tricky if
mixing html and php calls.

George


On 10-Sep-09, at 12:27 AM, A.a.k wrote:

> hello
> I recentrly uploaded my project from localhost to a hosting and
> found many errors and warnings which didnt have in local. one of the
> most annoying one is header('Location xxx').
> I have used header to redirect users from pages, and kinda used it
> alot. i know about the whitespace causing warning, but most of the
> pages i'm sending users got html and php mixed so i'm confused about
> how to remove whitespace in a html/php file. the error is :
> Warning: Cannot modify header information - headers already sent
> by ....
> here is a simple example, user update page :
> if($valid)
> {
> $msg='111';
> $user->dbupdate();
> header("Location: /admin/index.php?msg=$msg");
>
> }
> else
> {
> foreach($errors as $val)
> echo '

'.$val.'

Re: header problem

is there any alternative to header() for redirect users?

"George Langley" wrote in message
news:B1B897D4-7448-4B71-BFFC-3ADDC27CED32@shaw.ca...
> Hi Blueman. As soon as ANYTHING has been drawn to the browser, you cannot
> use a header command. So you need to work through all of your code, and
> ensure that all of your logic that could result in a header call is run
> BEFORE you send any html code. Is going to be tricky if mixing html and
> php calls.
>
> George
>
>
> On 10-Sep-09, at 12:27 AM, A.a.k wrote:
>
>> hello
>> I recentrly uploaded my project from localhost to a hosting and found
>> many errors and warnings which didnt have in local. one of the most
>> annoying one is header('Location xxx').
>> I have used header to redirect users from pages, and kinda used it alot.
>> i know about the whitespace causing warning, but most of the pages i'm
>> sending users got html and php mixed so i'm confused about how to remove
>> whitespace in a html/php file. the error is :
>> Warning: Cannot modify header information - headers already sent by ....
>> here is a simple example, user update page :
>> if($valid)
>> {
>> $msg='111';
>> $user->dbupdate();
>> header("Location: /admin/index.php?msg=$msg");
>>
>> }
>> else
>> {
>> foreach($errors as $val)
>> echo '

'.$val.'

Re: header problem

A.a.k wrote:
> is there any alternative to header() for redirect users?

As far as I know there isn't.

Is the header-error the first error on the page? If not, the other error
message itself is the reason for the header-error and will be solved if
you solve the other error.

--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php

Re: header problem

Usually, when I have to redirect the user AFTER headers has been sent (like
showing an error message), I write this:



But this will redirect the user at once. If you want the user to read the
page, you should do something in Javascript with setTimeout(func,timeout)
function.

BR,
SanTa

----- Original Message -----
From: "George Langley"
To:
Sent: Thursday, September 10, 2009 8:39 AM
Subject: Re: [PHP] header problem


> Hi Blueman. As soon as ANYTHING has been drawn to the browser, you cannot
> use a header command. So you need to work through all of your code, and
> ensure that all of your logic that could result in a header call is run
> BEFORE you send any html code. Is going to be tricky if mixing html and
> php calls.
>
> George
>
>
> On 10-Sep-09, at 12:27 AM, A.a.k wrote:
>
>> hello
>> I recentrly uploaded my project from localhost to a hosting and found
>> many errors and warnings which didnt have in local. one of the most
>> annoying one is header('Location xxx').
>> I have used header to redirect users from pages, and kinda used it alot.
>> i know about the whitespace causing warning, but most of the pages i'm
>> sending users got html and php mixed so i'm confused about how to remove
>> whitespace in a html/php file. the error is :
>> Warning: Cannot modify header information - headers already sent by ....
>> here is a simple example, user update page :
>> if($valid)
>> {
>> $msg='111';
>> $user->dbupdate();
>> header("Location: /admin/index.php?msg=$msg");
>>
>> }
>> else
>> {
>> foreach($errors as $val)
>> echo '

'.$val.'

Re: header problem

On Thu, 2009-09-10 at 08:57 +0200, A.a.k wrote:
> is there any alternative to header() for redirect users?
>
> "George Langley" wrote in message
> news:B1B897D4-7448-4B71-BFFC-3ADDC27CED32@shaw.ca...
> > Hi Blueman. As soon as ANYTHING has been drawn to the browser, you cannot
> > use a header command. So you need to work through all of your code, and
> > ensure that all of your logic that could result in a header call is run
> > BEFORE you send any html code. Is going to be tricky if mixing html and
> > php calls.
> >
> > George
> >
> >
> > On 10-Sep-09, at 12:27 AM, A.a.k wrote:
> >
> >> hello
> >> I recentrly uploaded my project from localhost to a hosting and found
> >> many errors and warnings which didnt have in local. one of the most
> >> annoying one is header('Location xxx').
> >> I have used header to redirect users from pages, and kinda used it alot.
> >> i know about the whitespace causing warning, but most of the pages i'm
> >> sending users got html and php mixed so i'm confused about how to remove
> >> whitespace in a html/php file. the error is :
> >> Warning: Cannot modify header information - headers already sent by ....
> >> here is a simple example, user update page :
> >> if($valid)
> >> {
> >> $msg='111';
> >> $user->dbupdate();
> >> header("Location: /admin/index.php?msg=$msg");
> >>
> >> }
> >> else
> >> {
> >> foreach($errors as $val)
> >> echo '

'.$val.'

Re: header problem

On Thu, 2009-09-10 at 09:04 +0200, Sándor Tamás (HostWare Kft.) w=
rote:
> Usually, when I have to redirect the user AFTER headers has been sent (li=
ke=20
> showing an error message), I write this:
>=20
>
>=20
> But this will redirect the user at once. If you want the user to read the=
=20
> page, you should do something in Javascript with setTimeout(func,timeout)=
=20
> function.
>=20
> BR,
> SanTa
>=20
> ----- Original Message -----=20
> From: "George Langley"
> To:
> Sent: Thursday, September 10, 2009 8:39 AM
> Subject: Re: [PHP] header problem
>=20
>=20
> > Hi Blueman. As soon as ANYTHING has been drawn to the browser, you can=
not=20
> > use a header command. So you need to work through all of your code, an=
d=20
> > ensure that all of your logic that could result in a header call is ru=
n=20
> > BEFORE you send any html code. Is going to be tricky if mixing html an=
d=20
> > php calls.
> >
> > George
> >
> >
> > On 10-Sep-09, at 12:27 AM, A.a.k wrote:
> >
> >> hello
> >> I recentrly uploaded my project from localhost to a hosting and found=
=20
> >> many errors and warnings which didnt have in local. one of the most=20
> >> annoying one is header('Location xxx').
> >> I have used header to redirect users from pages, and kinda used it al=
ot.=20
> >> i know about the whitespace causing warning, but most of the pages i'=
m=20
> >> sending users got html and php mixed so i'm confused about how to rem=
ove=20
> >> whitespace in a html/php file. the error is :
> >> Warning: Cannot modify header information - headers already sent by .=
....
> >> here is a simple example, user update page :
> >> if($valid)
> >> {
> >> $msg=3D'111';
> >> $user->dbupdate();
> >> header("Location: /admin/index.php?msg=3D$msg")=
;
> >>
> >> }
> >> else
> >> {
> >> foreach($errors as $val)
> >> echo '

'.$val.'

RE: header problem

-----Original Message-----
From: A.a.k [mailto:blueman@gmail.com]
Sent: 10 September 2009 08:27 AM
To: php-general@lists.php.net
Subject: [PHP] header problem

hello
I recentrly uploaded my project from localhost to a hosting and found many
errors and warnings which didnt have in local. one of the most annoying one
is header('Location xxx').
I have used header to redirect users from pages, and kinda used it alot. i
know about the whitespace causing warning, but most of the pages i'm sending
users got html and php mixed so i'm confused about how to remove whitespace
in a html/php file. the error is :
Warning: Cannot modify header information - headers already sent by ....
here is a simple example, user update page :
if($valid)
{
$msg='111';
$user->dbupdate();
header("Location: /admin/index.php?msg=$msg");

}
else
{
foreach($errors as $val)
echo '

'.$val.'