Warning: session_start() [function.session-start]: Cannot send session

thanks...phew that worked for me...thanks again

if that's the case, then you need to check any of your includes, check for any blanks or white spaces on line one of any of the files, if you are getting this errors, its because you are sending some information to the browser before the sessionstart function. you just have to check and doublecheck, eventually, you will find it. it happened to me, i went crazy trying to find it, but eventually, i found it. just remember, you can't have anything before sessionstart

you can also get more help at:



http://www.php.net/manual/en/function.session-start.php





as you can see, even the official php site says you must call session_start() before anything you send to the browser, that includes white spaces. white spaces are hard to find, because you can't see them, you have to look for them

this doesn't help me one tiny bit... i'm getting the error being reported on line 1 - all that's on that line is a session starter...

thanks you helped me a lot .i could rectify the errors.,and finally it working good.
i removed the extra "session start();" from the page and removed the extra header lines from the page expire .php,so it woring fine.

angie is the coolers

who help me about this error
warning: session_start() [function.session-start]: open(/var/tmp/sess_519142a978e7bec6c052145fa892aca3, o_rdwr) failed: permission denied (13) in /mnt/web1/22/58/51474058/htdocs/kd/korenicajomla/joomla_1.0.13-stable-full_package/includes/joomla.php on line 800

warning: session_start() [function.session-start]: cannot send session cookie - headers already sent by (output started at /mnt/web1/22/58/51474058/htdocs/kd/korenicajomla/joomla_1.0.13-stable-full_package/includes/joomla.php:800) in /mnt/web1/22/58/51474058/htdocs/kd/korenicajomla/joomla_1.0.13-stable-full_package/includes/joomla.php on line 800

warning: session_start() [function.session-start]: cannot send session cache limiter - headers already sent (output started at /mnt/web1/22/58/51474058/htdocs/kd/korenicajomla/joomla_1.0.13-stable-full_package/includes/joomla.php:800) in /mnt/web1/22/58/51474058/htdocs/kd/korenicajomla/joomla_1.0.13-stable-full_package/includes/joomla.php on line 800
this error i have in administration panel

thanks a lot.. it really helped me..

still having it... though i tried every solution in this topic


warning: session_start() [function.session-start]: cannot send session cache limiter - headers already sent (output started at /home/admin/public_html/zaid/htpre/userclass.php:62) in /home/admin/public_html/zaid/htpre/sessiondata.php on line 28

this is the sessiondata.php and the error in

if ($sid == "") {
session_start();
$sid = session_id();
} else {
session_start($sid);
}

i was able to fix the error on the cookies when placing them on the first lines. however, i have a similar error with header("location:mypage.php"); the error displayed is

warning: cannot modify header information - headers already sent by (output started at /home/mydomain/public_html/mypage_add.php:4) in /home/mydomain/public_html/mypage_add.php on line 72.

the following are the codes:

71: if ($resultpage){
72: header("location:detail.php?name_id=$name_id#p$page_id");
73: exit();
74: }else{

what seems to be the problem?

thanks very much . i got the solution of my error. it's very useful to the new learners. thanks a lot.............

thankyou, it helped.

error: [2] unpack() [function.unpack]: type n: not enough input, need 4, have 0 | line: 3099 | file: /home/allkindt/public_html/shared/code/tcpdf.php
tcpdf error: some data has already been output, can't send pdf file

error: [2] unpack() [function.unpack]: type n: not enough input, need 4, have 0 | line: 3099 | file: /home/allkindt/public_html/shared/code/tcpdf.php
error: [2] cannot modify header information - headers already sent by (output started at /home/allkindt/public_html/shared/config/tce_db_config.php:180) | line: 2409 | file: /home/allkindt/public_html/shared/code/tcpdf.php
tcpdf error: some data has already been output to browser, can't send pdf file
i face this problems to create pdf file

error: [2] session_start() [function.session-start]: cannot send session cookie - headers already sent by (output started at /home/allkindt/public_html/shared/config/tce_db_config.php:180) | line: 190 | file: /home/allkindt/public_html/shared/code/tce_functions_session.php
error: [2] session_start() [function.session-start]: cannot send session cache limiter - headers already sent (output started at /home/allkindt/public_html/shared/config/tce_db_config.php:180) | line: 190 | file: /home/allkindt/public_html/shared/code/tce_functions_session.php
error: [2] cannot modify header information - headers already sent by (output started at /home/allkindt/public_html/shared/config/tce_db_config.php:180) | line: 191 | file: /home/allkindt/public_html/shared/code/tce_functions_session.php

hi i face this problems..please give me a better solution....thanks..byeee

guys, thanks a lot for explaining the issue with utf encoding with bom. i had same problem like the fellow below me but managed to solve it. all i needed to do was to change conding to utf8 without bom in notepad++