Question about sessions_start and header()?

**Alvaro G. Vicario** · Jul 24 '06, 08:15 PM

Re: Question about sessions_start and header()?

*** bobmct escribió/wrote (Mon, 24 Jul 2006 15:57:01 -0400):

It doesn't work because I have sessions and apparently sessions does
something that causes the headers to be disallowed.

They shouldn't.

Sample code?

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++ Mi sitio sobre programación web: http://bits.demogracia.com
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**Manish** · Jul 25 '06, 10:35 AM

Re: Question about sessions_start and header()?

Will window.location .href work.

From:
<?php
header("locatio n: somepage.php");
?>

To:
?>
<script language="javas cript">
window.location .href = "somepage.p hp"
</script>
<?php

Javascript must be enabled in the browser settings.

bobmct wrote:

Please help me clear the cobwebs out???
>
I pretty much use session_start() ; at the start of most/all of my PHP
programs and use the $_SESSION array to store control variables. This
technique seems to work quite well and is easily manages.
>
However, now I've come up to a situation where it's biting me and I need
some other ideas as to how to get around my situation.
>
In my PHP program I am in a logic block that requires to next page to be
delivered from a different server. If this were a link then I would use
the "href=" tag and when the user clicked on it control would go as
expected.
>
However, in this case I need control to go seamlessly and automatically. So
I thought I would use the header(location :) function and guess what? It
doesn't work because I have sessions and apparently sessions does something
that causes the headers to be disallowed.
>
I've evaluated trying to eliminate the sessions but this technique really
works so well and exactly was it is supposed to. So I am thinking that I
cannot be the only one whose come up against this before. Therefore, what
are OTHERS doing to accomplish this requirement (i.e.: using sessions and
still being able to automatically/seamlessly transition to a different
server without additional user input)?
>
I am most anxious to read what others are doing.
>
>
Thanks,
>
Bob

**Jerry Stuckle** · Jul 25 '06, 11:25 AM

Re: Question about sessions_start and header()?

bobmct wrote:

Please help me clear the cobwebs out???
>
I pretty much use session_start() ; at the start of most/all of my PHP
programs and use the $_SESSION array to store control variables. This
technique seems to work quite well and is easily manages.
>
However, now I've come up to a situation where it's biting me and I need
some other ideas as to how to get around my situation.
>
In my PHP program I am in a logic block that requires to next page to be
delivered from a different server. If this were a link then I would use
the "href=" tag and when the user clicked on it control would go as
expected.
>
However, in this case I need control to go seamlessly and automatically. So
I thought I would use the header(location :) function and guess what? It
doesn't work because I have sessions and apparently sessions does something
that causes the headers to be disallowed.
>
I've evaluated trying to eliminate the sessions but this technique really
works so well and exactly was it is supposed to. So I am thinking that I
cannot be the only one whose come up against this before. Therefore, what
are OTHERS doing to accomplish this requirement (i.e.: using sessions and
still being able to automatically/seamlessly transition to a different
server without additional user input)?
>
I am most anxious to read what others are doing.
>
>
Thanks,
>
Bob
>
>

Bob,

Sessions shouldn't be a problem. I use sessions and redirect at times,
and it works.

Ensure you aren't sending something else (even white space) out before
the header() call.

--
=============== ===
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attgl obal.net
=============== ===

**ronverdonk** · Jul 25 '06, 11:33 AM

I always use sessions and redirect quite frequently. Also, I can see no reason why these are related. You must have sent SOMETHING. Are you sure you don't have any forgotten HTML piece of code, or another header, or a blank after your closing ?> statement?

Ronald :cool:

**bobmct** · Jul 25 '06, 08:55 PM

Re: Question about sessions_start and header()?

Manish wrote:

Will window.location .href work.
>
From:
<?php
header("locatio n: somepage.php");
?>
>
To:
?>
<script language="javas cript">
window.location .href = "somepage.p hp"
</script>
<?php
>
>
Javascript must be enabled in the browser settings.
>
>
>
>
bobmct wrote:

>Please help me clear the cobwebs out???
>>
>I pretty much use session_start() ; at the start of most/all of my PHP
>programs and use the $_SESSION array to store control variables. This
>technique seems to work quite well and is easily manages.
>>
>However, now I've come up to a situation where it's biting me and I need
>some other ideas as to how to get around my situation.
>>
>In my PHP program I am in a logic block that requires to next page to be
>delivered from a different server. If this were a link then I would use
>the "href=" tag and when the user clicked on it control would go as
>expected.
>>
>However, in this case I need control to go seamlessly and automatically.
>So
>I thought I would use the header(location :) function and guess what? It
>doesn't work because I have sessions and apparently sessions does
>something that causes the headers to be disallowed.
>>
>I've evaluated trying to eliminate the sessions but this technique really
>works so well and exactly was it is supposed to. So I am thinking that I
>cannot be the only one whose come up against this before. Therefore,
>what are OTHERS doing to accomplish this requirement (i.e.: using
>sessions and still being able to automatically/seamlessly transition to a
>different server without additional user input)?
>>
>I am most anxious to read what others are doing.
>>
>>
>Thanks,
>>
>Bob

Thanks to those who responded.

It appears that if NO output is done prior to the header() function then the
session_start() will still work.

Normally for debugging I display some variables as output and it appears
that is what was biting me.

As someone once said decades ago: "If the computer is smart enough to know
its incorrect, then why isn't it smart enough to correct it?"

Thanks again,

Bob

**Miguel Cruz** · Jul 26 '06, 06:35 PM

Re: Question about sessions_start and header()?

bobmct <r.mariottiX@fd cx.netXwrote:

It appears that if NO output is done prior to the header() function then the
session_start() will still work.
>
Normally for debugging I display some variables as output and it appears
that is what was biting me.
>
As someone once said decades ago: "If the computer is smart enough to know
its incorrect, then why isn't it smart enough to correct it?"

ob_start() is your friend.

miguel
--
Photos from 40 countries on 5 continents: http://travel.u.nu
Latest photos: Malaysia; Thailand; Singapore; Spain; Morocco
Airports of the world: http://airport.u.nu

**Alvaro G. Vicario** · Jul 26 '06, 07:15 PM

Re: Question about sessions_start and header()?

*** bobmct escribió/wrote (Tue, 25 Jul 2006 17:06:40 -0400):

It appears that if NO output is done prior to the header() function then the
session_start() will still work.

PHP gives a warning when you do so. Try setting error_reporting to E_ALL
or, at least, E_ALL & ~E_NOTICE.

Normally for debugging I display some variables as output and it appears
that is what was biting me.
>
As someone once said decades ago: "If the computer is smart enough to know
its incorrect, then why isn't it smart enough to correct it?"

It could correct it, let's say, randomly ignoring some of your code? ;-)

--
-+ http://alvaro.es - Álvaro G. Vicario - Burgos, Spain
++ Mi sitio sobre programación web: http://bits.demogracia.com
+- Mi web de humor con rayos UVA: http://www.demogracia.com
--

Question about sessions_start and header()?

Question about sessions_start and header()?

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