Question

I my login form if I dont check remember me check box in php script it gives <b>Notice</b>: Undefined index: autologin in error. in my .php file I have
$check_autologin = $_POST['autologin']; And I am checking is user checked it

if($check_autologin == 1)
    {
   $password_hash = $encrypted_mypassword;     
   setcookie ($cookie_name, 'usr='.$username.'&hash='.$password_hash, time() + $cookie_time);
   }

and this is my check box field <input type="checkbox" name="autologin" value="1">Remember Me<br />

How could check box can return any default value if it is not checked?

Answer 1

I suspect the problem is when your checkbox is not checked the value doesn’t exist in the $_POST array.

Try insulating your value check by using

isset( $_POST['autologin'] )

thusly:

$check_autologin = false;
if( isset( $_POST['autologin'] ) ) {
    $check_autologin = $_POST['autologin'];
}