This question already has answers here:
How to fix "Headers already sent" error in PHP
(11 answers)
Closed 7 years ago.
I am facing a problem. So please don't mention other solution. So far i found many solution like white space before
A PHP Error was encountered
Severity: Warning
Message: Cannot modify header information - headers already sent by (output started at /homepages/27/d595312696/htdocs/application/config/database.php:1)
Filename: libraries/Session.php
Line Number: 689
But i did not find any error. Please help specifically. I have searched duplicate question but can't get yet any solution.
It works on local server. But after uploading it online server i found this problem
You have somewhere a call to header() and before you are outputing some text to the page. All headers should be specified before any output.
From http://php.net/manual/en/function.header.php
<html>
<?php
/* This will give an error. Note the output
* above, which is before the header() call */
header('Location: http://www.example.com/');
exit;
?>
Related
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 a contact form that is setup as so:
contact page > contact handler > thank you
When testing out my form, all emails are going through, however I get an error on my contact handler page:
Warning: Cannot modify header information - headers already sent by (output started at /nfs/c03/h03/mnt/168570/domains/mikesbaum.com/html/index.php:11) in /nfs/c03/h03/mnt/168570/domains/mikesbaum.com/html/pages/contact_handler.php on line 10
I have this on line 10:
header("location: thankyou.php");?>
And I have also tried
exit(header("location: thankyou.php"));?>
as mentioned on previous posts. Any help is appreciated!
This is very common problem with header. Just put ob_start() at the start of your php code. To know more about it read here
header("location: thankyou.php");
exit;
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.