Cannot add header information

dougmcc1

What does this error message mean?

"Cannot add header information - headers already sent by (output started at c:\apache\htdocs\companyfolder\admin\template.php:8) in c:\apache\htdocs\companyfolder\admin\template.php on line 103"

line 103 is where my header is located and its the only one I have on the page so I dont know how it could be "already sent"...

cosminb

and before line 103 you don't have any echo, printf or smth like that??
make sure you're not outputting anything before you header( .... .check for empty lines or spaces outside the php tags

dougmcc1

No spaces or echoes, but I am copying the page. Here is the code

<?
if ($PHP_SELF == "/ivcentral/admin/template.php")
{
/ determine if $page_name already exists in the above directory /
/ alert me if this page already exists and ask me whether or not to overwrite it /
copy ("template.php", "temp.php");
copy ("temp.php", "../$page_name${$page_name}");
unlink ("temp.php");
header("Location: ../$page_name${$page_name}");
}
?>

so the variable $page_name gets sent to the template, the template gets copied as temp.php, temp.php gets copied to ../$page_name and then them.php is deleted and i want to refresh template so that it displayed ../$page_name

cosminb

This is weird !?! 😕
Is this the complete file ??

Did you looked at line 8. What do you have on that line??

ps: I'm just curios : why do you copy template.php to temp.php and then temp.php to "../$page_name${$page_name}"?? Why don't you copy template.php directly to "../$page_name${$page_name}"??

dougmcc1

lol good point. Before, I was renaming template to temp and renaming temp to $page_name and then moving it to the above directory

but I guess just copying the template does make more sense

no that is not the whole page. on line 8 i have a meta tag

cosminb

THAT IS YOUR OUTPUT
You can't have HTML code before header(...)
Delete that line and your script will work. That is if you don't have any more HTML code before line 103

dougmcc1

Oh cool, man I have been working with this for 10 hours I bet, I kid you not. Yeah lemem throw that header at the TOP of my page instead of the bottom and I'll see what happens. Hey thanks for your help, I'll let you know what happens.

cosminb

🆒
you're welcome

dougmcc1

HAHA IT WORKS

Oh man, I owe you. You have no idea how happy I am. I got some errors but I'll work those out.

Thanks again!!

cosminb

Sorry, I don't like guys
😃

dougmcc1

Shit well now that I look at the errors, I think I'm screwed. Here is the code I put at the top:

<?
$$page_name = ".php";
/ determine if $page_name already exists in the above directory /
/ alert me if this page already exists and ask me whether or not to overwrite it /
copy ("template.php", "../$page_name${$page_name}");
header("Location: ../$page_name${$page_name}");
?>

and now I get that "Cannot add header information " at the top

again, no spaces, html or output before that. unless the copy is considered output. but without that then it cant find the page cuz it doesnt exist yet...

maybe its just not possible to do what I want to do.

dougmcc1

P.S. who said I was a guy lol

Just kidding.

cosminb

what's this: $$page_name = ".php"; ???

So you're saying that "<?" is your first line???

Maybe you can post the error message ...

dougmcc1

Ok let me give you soem more bg info. The variables for template.php are coming from another page called form.php which is, obviously, a form. One of the fields in the form asks for page name. So I enter "page", for example".

So then the variable $page_name gets sent to the template.

$$page_number means whatever the value for this variable is, is going to be added to $page_name. So .php is going to be added to the page name.

$page_name${$page_name} actually adds $$page_name to $page_name thus making page.php

you can also do that to make sentance

$sentance = thanks
$$sentace = for your help

$sentance ${$sentance} = thanks for your help

dougmcc1

here is the whole message:

Warning: Cannot add header information - headers already sent by (output started at c:\apache\htdocs\ivcentral\page.php:5) in c:\apache\htdocs\ivcentral\page.php on line 6

line 5 is copy ("template.php", "../$page_name${$page_name}");

line 6 is header("Location: ../$page_name${$page_name}");

cosminb

I've just tried your code without the copy() part and it works just fine.

I'm not sure that you're doing right what you want to do, and I'm not sure I understand the purpose of your code.

You copy template.php to page.php and then redirect to page.php. So far so good.
When you get to page.php you will again redirected to another page because you have copied the "header(... " part too

And instead of $$page_name = ".php";
you could try $page_name.='.php';

dougmcc1

"you could try $page_name.='.php';"
Cool, I didnt know you could do it that way.

and this whole copy, header stuff is in an if statement which says IF this page == template.php THEN copy and header

so for page.pgp, this page doesnt equal template.php

something like this
if ($_SERVER[PHP_SELF] == template.php)

I saved ovre my version on accident which had the if statement in it so I dont have the actual code anymore. I have beenw orking without it for now because I just want the refresh to work

cosminb

Here is my code and it works very well

My file is called test.php

<?php
$page_name="test1";
$page_name.= ".html";
copy ("test.php",$page_name);
header("Location: $page_name");
?>

dougmcc1

Works good for me now too 🙂

Thanks for all your help. I wish I could make it up to you

dougmcc1

here is the final code if you're interested:

<?
if ($PHP_SELF == "/admin/template.php")
{
$$page_name = ".php";
/ determine if $page_name already exists in the above directory /
/ alert me if this page already exists and ask me whether or not to overwrite it /
copy ("template.php", "../$page_name${$page_name}");
header("Location: ../$page_name${$page_name}");
}
?>