session_start() - Cannot send session cookie

Question

Hi im creating a simple register and login script in PHP but i get these errors when i load the login page.

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at C:\Users\s14\phase2\index.php:8) in C:\Users\s14\phase2\index.php on line 10

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\Users\s14\phase2\index.php:8) in C:\Users\s14\phase2\index.php on line 10

From line 6 to 20 of my code

<form action="index.php" method=get>
 <h1 align="center" style="color:gray" >Welcome to this simple application</h1>
<?php
error_reporting(E_ALL & ~E_NOTICE);
session_start();
if( $_SESSION["logging"])
{
     print_secure_content();
}
else {
if(!$_SESSION["logging"])
{  
$_SESSION["logging"]=true;
loginform();
}

score 1 · Answer 1 · answered Apr 29 '12 at 23:45

1

You have to keep the session_start(), before you echo or output . You have these HTML which outputs before session_start() runs.

Your solution:

<?php
/* Make sure this part is at the top */
error_reporting(E_ALL & ~E_NOTICE);
session_start();
?>
<!-- Now other -->
<form action="index.php" method=get>
 <h1 align="center" style="color:gray" >Welcome to this simple application</h1>
<?php
if( $_SESSION["logging"])
{
     print_secure_content();
}
else {
if(!$_SESSION["logging"])
{  
$_SESSION["logging"]=true;
loginform();
}
?>

answered Apr 29 '12 at 23:45

Starx

77,474
47
185
261

Thank you, i just put at the top of the html and the errors seem to disappear. – user1281921 Apr 29 '12 at 23:48
@user1281921, also put the error reporting on the top. – Starx Apr 29 '12 at 23:49

score 0 · Answer 2 · answered Apr 29 '12 at 23:47

0

session_start() must be called before ANY output. So if you put the session_start() call before any of your HTML, there should be no problem.

answered Apr 29 '12 at 23:47

Marcus Recck

5,075
2
16
26

session_start() - Cannot send session cookie

2 Answers2