Session Cookies

[Anon]

*******I am getting this error******

Warning: Cannot send session cookie - headers already sent by (output started at c:\inetpub\wwwroot\session_test.php:3) in c:\inetpub\wwwroot\session_test.php on line 4

Warning: Cannot send session cache limiter - headers already sent (output started at c:\inetpub\wwwroot\session_test.php:3) in c:\inetpub\wwwroot\session_test.php on line 4

*********this is my code********

<?
session_start();
session_register(\"user\");

//check to see if $your_name contains a value

if (!empty($user))
{
echo (\"$user\");
}

//this is the form that grabs your variable information

elseif (empty($user) && !isset($submit))
{
echo (\"<form name=\\"user validation\\" method=\\"post\\" action=$PHP_SELF>
<input type=\\"text\\" name=\\"user_name\\"><br>
<input type=\\"text\\" name=\\"password\\"><br>
<input type=\\"submit\\" name=\\"submit\ value=\\"submit\\">
</form>\");
}
elseif (isset($submit) && empty($user))
{
$name_of_variable=($user_name);

echo ($user);
}
?>

******whats wrong?**********

[jc94062]

I can't see a setcookie in there, but cookies have to be set before anything is printed, including blank white spaces.

ie

<?php
setcookie...
?>

works

<?php

setcookie...
?>

doesn't.

[[deleted]]

Correction:

This:
-- start of file --
<?php

setcookie...
?>
-- end of file --

does work, but this:

-- start of file --

<?php
setcookie...
?>

doesn't.

Empty lines inside PHP tags are OK, empty lines OUTSIDE PHP tags get printed as normal HTML, and are therefor not OK.

[Anon]

if you have header problems, use output buffering

ob_start();

your page of stuff here

ob_flush();

buffering will keep all your output in a buffer (big surprise) until you call flush. this means you can throw in headers and cookie sets anywhere you want without worrying about the automatic text/html header that gets sent the minute you do an echo or print.

try it, you'll like it.

-frymaster

[[deleted]]

That is a solution, but remember this can slow your pages down quite a bit, because nothing get's sent untill the page is complete.