php session Cannot send session cookie

Question

I am trying to solve this error related to session in php. please do help me. thankyou!

Warning: session_start(): Cannot send session cookie - headers already sent by (output started at C:\xampp\htdocs\myfolder\Login.php:117) in C:\xampp\htdocs\myfolder\Login.php on line 155

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at C:\xampp\htdocs\myfolder\Login.php:117) in C:\xampp\htdocs\myfolder\Login.php on line 155

here is the php code:

$adm_user=$_POST['username'];
$adm_pass=$_POST['password'];
if($adm_user=="" || $adm_pass=="")
{
    echo'Fields Cannot Be Empty';
}
else
{
    $adm_login_sql="SELECT admin_login.username, admin_login.password
                    FROM admin_login
                    WHERE username='$adm_user' AND password='$adm_pass'";

    $adm_login_query=mysql_query($adm_login_sql);

    if (!$adm_login_query)
        {
        echo "Error: No records found" . mysql_error();
        }
    else
        {
            echo "query successful<br>";

            $adm_login_row=mysql_fetch_array($adm_login_query);

            $check_uname=$adm_login_row[0];
            $check_pass=$adm_login_row[1];


                if($check_uname==$adm_user && $check_pass==$adm_pass)
                {
                    session_start();
                    $_SESSION['name']=$adm_user;

                    header('location:admin.php');   
                }
                else
                {
                    echo 'Password Missmatch!!!';
                }

        }
}

put `session_start();` at top of your each page just after starting` — Alive to die - Anant, Feb 06 '16 at 07:16
did you tried my suggestion? if yes problem resolved or not? if yes then do the marking and if no let us know — Alive to die - Anant, Feb 06 '16 at 21:05
Arun please mark and up-vote the answer. It will help others. thanks — Alive to die - Anant, Feb 26 '16 at 05:11
peoples are not interested in telling that problem solved or not? wastage of time an effort. deleting my answer, — Alive to die - Anant, Mar 21 '16 at 17:42

score 1 · Answer 1 · edited Feb 06 '16 at 12:12

1

add @ob_start(); in first code line and change
session_start(); to @session_start();

edited Feb 06 '16 at 12:12

Alive to die - Anant

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answered Feb 06 '16 at 07:13

paranoid

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why to do this? it's a bad option to skip the error. Try to solve the error, not to skip. – Alive to die - Anant Feb 06 '16 at 07:30

score 1 · Answer 2 · edited Feb 06 '16 at 07:24

1

"Headers already sent" means that your PHP script already sent the HTTP headers, and as such it can't make modifications to them now.

Check that you don't send ANY content before calling session_start(). Better yet, just make session_start() the first thing you do in your PHP file (so put it at the absolute beginning, before all HTML etc).

edited Feb 06 '16 at 07:24

Alive to die - Anant

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answered Feb 06 '16 at 07:22

Drudge Rajen

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php session Cannot send session cookie

2 Answers2