This question already has answers here:
How to fix "Headers already sent" error in PHP
(11 answers)
Closed 9 years ago.
I am trying to insert a form script into my home page index.php by using the following line of code.
<?php include('email-system/index.php'); ?>
and continue to get the two error messages below. The form shows up, but I get this error below quite often when trying to insert script into my home page using the include statement. I have read in a number of different places that it could be white space. Since the file works fine if you go to www.mysite.com/email-system/index.php I'm assuming that it's not white space. Any ideas on what my problem is and how I could insert the code and correct the errors? Thank you in advance.
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/content/84/8661784/html/header.php:7) in /home/content/84/8661784/html/email-system/index.php on line 6
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/content/84/8661784/html/header.php:7) in /home/content/84/8661784/html/email-system/index.php on line 6
You will only get that if you are echoing output before the include statement.
Make sure whatever you need is included / loaded before you send output to the user.
Related
This question already has answers here:
How to fix "Headers already sent" error in PHP
(11 answers)
"Cannot send session cache limiter - headers already sent" [duplicate]
(1 answer)
Closed 5 years ago.
<?php
if(session_id() == '' || !isset($_SESSION))
session_start();
?>
i have this line of code in all my pages... and it is located at the very top of my script.. but unfortunately im getting an error on one of my script but the other pages didn't get error... i tried to search it but they said that it is needed to be at the top of script before HTML.. just what i did... but i dont have any idea why im getting error on one of my pages.. i found this error when i start to upload it to my cpanel server.. but on my local server its totally working..
this is the warning message that i got.. and when i tried to remove this on one of my script which gives me the error message my page did not functioning well
Warning: session_start(): Cannot send session cache limiter - headers already sent
Posting as an asnwer as per the comment made by OP
This occurs if you have output before session_start() is called. The most typical culprit is a space (or any character) before the <?php tag (be aware of zero-width space characters also).
The session_start() function needs to be the first one
<?php
session_start();
if(session_id() == '' || !isset($_SESSION))
?>
This question already has answers here:
How to fix "Headers already sent" error in PHP
(11 answers)
Closed 7 years ago.
I wanted to do "remember me" option in my login form but i still getting error:
;llfdfdffddffdfd
Warning: Cannot modify header information - headers already sent by (output started at /home/chumorekgn/www/maneku/log-in.php:40) in /home/chumorekgn/www/maneku/log-in.php on line 76
Warning: Cannot modify header information - headers already sent by (output started at /home/chumorekgn/www/maneku/log-in.php:40) in /home/chumorekgn/www/maneku/log-in.php on line 77
I dont know what should i do... Here is my code
if(isset($_GET['r'])){
echo ";llfdfdffddffdfd";
setcookie("Maneku_login", base64_encode($l));
setcookie("Maneku_pass", base64_encode(md5(md5(base64_decode($h)))));
}
when the request is made to the page the header is sent first and that header contains all the information like cookies, session and other useful information. When request is sent if the server finds the request similar to previous one then it will give response “header already sent”.
So the error in PHP is shown as following:
<?php
print “text”;
header(‘Location: http://www.example.com/’);
?>
Check reference for complete solution for issue: http://www.navnishbhardwaj.com/how-to-fix-headers-already-sent-error-in-php/
This question already has answers here:
How to fix "Headers already sent" error in PHP
(11 answers)
Closed 7 years ago.
My website has a section where a user who has signed up for access (and has an existing profile) can edit their own profile. When the user clicks to save the profile changes, the following 4 PHP errors come up. My understanding is that often several errors appear due to the first one so I am hoping that resolving the first one is all it takes. Here I will provide details for number 1 only, rather than pasting so much code.
A PHP Error was encountered
Message: Use of undefined constant WEBMASTER - assumed 'WEBMASTER'
Filename: controllers/content.php Line 285
Message: Cannot modify header info- headers already sent by (output
started at ////system/core/Exceptions.php:185
Filename: libraries/Sessions.php
Line 672
Message: Cannot modify header info- headers already sent by (output
started at ////system/core/Exceptions.php:185 Filename:
helpers/url_helper.php Line 542
Here is the code for 1. Line 285 begins with "$permission".
function edit($id="",$language=""){
//which users are allowed to see this file.
//* for everybody including those who are not registered
//admin (or any other specific type for )
$permission=array(ADMIN,WEBMASTER);
$next_page=site_url("/content/manage");
Is there anything obviously wrong here?
You need to define the constant:
DEFINE('WEBMASTER', 'webmaster content here')
Regarding the 'headers already sent'.... this means you are trying to modify the headers when you have already sent output to the browser.
First of all, you are not allowed to modify headers after data has been sent already.
So you should put everything what modifies the header before <!doctype html>. Just make sure there is nothing before the very first <?php, even not a single space.
Example:
<?php
// do some header modification
?>
<!doctype html>
<html xmlns="http://www.w3.org/1999/xhtml">
....
</html>
It means that there are some output in your php file before you make a redirection with function like header('Location: http://www.example.com/') !
you have to comment all "echo" "printf" or "html" before calling header function.
This question already has answers here:
How to fix "Headers already sent" error in PHP
(11 answers)
Closed 8 years ago.
I am a beginner in php..
I need to redirect from one php file to another php file..
I used this code for this.
header("Location: stu_rep.html");
but it shows this error..
Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\auttvl\admin\stu_rep_view.php:241) in C:\xampp\htdocs\auttvl\admin\stu_rep_view.php on line 492
I need to know what is wrong,Is there any other way to redirect without using header?
Thanks!
Header(); sends a HTTP header. But HTTP headers can only be sent before anything else. In your case, you are probably printing something out before using header();. Remove the printings and your done.
More informations here:
http://www.php.net/manual/de/function.header.php
Headers must be sent before any output is generated on the website. To "work around" this, you can add ob_start(); to the top of your file.
This question already has answers here:
How to fix "Headers already sent" error in PHP
(11 answers)
Closed 9 years ago.
I have started my session in config.php file & i have included that file on every page on my site,
my site works fine in localhost,
but when i have done live to it,it shows error like this,
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent
Any suggestions...
Thanks,
check that you don't send content before calling session_start. Just make session_start the first thing you do in your PHP file.
<?php session_start(); ?>
If you will have space after closing PHP Tags in your config.php at the end of your code then also these warning will come.
So make sure you don't have any space after closing of PHP Tags which is ?>