I have recently changed my editor to save int UTF-8. This started poping out afterwards and don't know what it means.
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/sudancar/public_html/index.php:1) in /home/sudancar/public_html/index.php on line 1
Your editor most likely wrote out a BOM (Byte-Order-Marker) to indicate that the file was UTF-8.
Because that marker appears before any <?php tags, PHP automatically sent it to the browser, including the necessary headers.
Unless your PHP can be compiled with the experimental (--enable-zend-multibyte) option, it can't be helped. You'll just have to tell your editor not to write that marker.
For reference: http://bugs.php.net/bug.php?id=22108
You need to call session_start() before ANY output is sent to the browser.
Related
Hi I have a php file that is empty and the only line of code in there is
<?php session_start(); ?>
No html mark-up or any php code besides the code above.
On localhost it doesn't trigger an error, but when it's on the server and I visit the page, a new line is printed on the error log that says
[25-Apr-2016 05:43:34 UTC] PHP Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at path/to/file.php:1) in /path/to/file.php on line 1
The server is running apache and php 5.6 if that's relevant, I've also tried deleting the .htacces file just in case that is what's causing the problem but still no luck.
Can anyone point me in the right direction to see what may be causing the issue? Thanks!
Problem : Sometimes there are invisible characters inside your code file.
Solution :
So simply for now if want to fix the error so here is the quick way to do it :
I am sure you must be using some sort of Code Editor just simply save your php file with encoding as "UTF-8 With BOM" and then upload the saved file to your site and then access your file and you will have no problem..!
Screenshot For Better Guidance :
Reference URL :
How to fix "Headers already sent" error in PHP
If that doesn't solve your problem so then use this solution :
Make sure there is absolutely no whitespace before <?php
Put session_start() before ob_start() instead of after it.
If that fails, try commenting out the session_start() as one of your
includes might already be starting the session, like so: /** session_start(); **/
When execute header("Location: new/location.php") command I got session problems.
On local host testing everything works just perfect, but if i send my project on web server hosting i got these errors:
Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /srv/disk4/2008248/www/some-url.com/new/location.php:2) in /srv/disk4/2008248/www/some-url.com/new/location.php on line 7
Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /srv/disk4/2008248/www/some-url.com/new/location.php:2) in /srv/disk4/2008248/www/some-url.com/new/location.php on line 7
, so my question is how to fix this problems and keep session values alive, so i can use that values in another redirected page?
Warning: session_start(): Cannot send session cookie - headers already... a typical error when something is before session_start()
You need to write session_start() above headers(). As error says you already sent something beforee session start. Make Session start the very first line of your script, and leave no spaces before <?php tag
use ob_start(); on top of the php page
This question already has answers here:
How to fix "Headers already sent" error in PHP
(11 answers)
Closed 9 years ago.
<?php
session_start();
$_SESSION['start']=1;
echo $_SESSION['start'];
?>
Output in FF:
Warning: session_start()
[function.session-start]: Cannot send
session cookie - headers already sent
by (output started at .../test.php:1)
in.../test.php on line 10
Warning: session_start()
[function.session-start]: Cannot send
session cache limiter - headers
already sent by (output started at
.../test.php:1) in.../test.php on line
10
If you have saved your file in UTF-8 format, be sure to check if it is UTF-8 without BOM.
Did you include this file from any other file? If so, then did those files echo/output anything?
The HTTP header that includes cookies must be outputted before the body (the HTML, usually).
Along with rFactor's response, check that you do not have any white space at the top of the PHP file (e.g. a space or a period).
Changed encoding from UTF8 to ANSI, then saved the file and the error went away.
This question already has answers here:
How to fix "Headers already sent" error in PHP
(11 answers)
Closed 9 years ago.
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/moonpk/public_html/wallz/preview.php:16) in /home/moonpk/public_html/wallz/loginbox.php on line 2
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/moonpk/public_html/wallz/preview.php:16) in /home/moonpk/public_html/wallz/loginbox.php on line 2
i am getting these two warning which i was not getting on local server... why ....
See the first note on the php session_start() page. session_start() sends cookies to the browser, and the server will not send any additional data (including cookies) after any data has already been sent. This can simply be fixed by making sure that nothing is being sent to the browser (such as an echo() or var_dump() call) before calling session_start().
You don't get them on local server because you have lower errer reporting level on it. So, you need:
On you local server edit php.ini and set error_reporting to E_ALL
Move you session_start() call before line 16 of you /home/moonpk/public_html/wallz/preview.php file
Most likely you have some whitespace outside any PHP-tags in files that are loaded before the session_start() is executed. Maybe your FTP client messed things up?
You probably had warnings suppressed on your local server? The issue is that you have some output before you call session_start. Judging by the line numbers, I'd guess you have a line break before your opening php tag, but without seeing the code, can't provide a full solution.
If you are including the page "preview.php" within "loginbox.php" check that you have only called session_start once on one page.
Either on preview.php or loginbox.php , not both.
I am a beginner in PHP.
I am receiving the following errors. I cannot view the error from my computer on FF, IE, and Chrome, but yet I see the error up top when browsing from another computer's browser.
Warning: session_start() [function.session-start]: open(/tmp/sess_c464nadk4jsn4u43mpqipkjbr7, O_RDWR) failed: Permission denied (13) in "file location" on line X
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at "file location":line X) in "file location" on line X
Any ideas anyone?
I have the session_start() before the includes which means before any html, and the session is only used to carry over one variable.
I tried placing it before
Header("Cache-control: private, no-cache");
Header("Pragma: no-cache");
but this only generated more Warning signs. Any help would be appreciated!
seems that the /tmp/ dir is not readable or writable by the user php is running as.
Is there any whitespace or any other character before the <?php starting tag?
Is the session_start() really the first statement within the php block?
The "headers already sent" error is caused by the first one. The other answers here trying to debug it aren't going to help you. Fix the first error and the second will go away. The first error tells you what your problem is already - the /tmp directory is not writable by the web server. /tmp is usually 777 (rwxrwxrwx).
The first error seems to indicate missing write permission in the temp directory but could be linked to the second one also.
The second error normally only happens when there is some kind of output is being sent from your php script before the session_start() call, because will automatically send HTTP headers. This can be any kind of html or even blank lines or spaces in the file before the actual call or before the <?php opening bracket. As Shane suggests in a comment, the reason for the second error could very well be that the error message from the first error (unable to write the session to a file in /tmp) causes headers to be sent and thus it is too late to send them with the header() call.