I have searched stackoverflow, I have followed may be 15 posts about; OBM, session_start(); at the beginning, etc and seems nothing solve the problem. There are other files that has the same structure, but no warning...
This php file, when I put the <?php session_start();?>
it gives the warning, I have not added any php script. Without the session_start line, no warning is given....
Here is my code:
<?php session_start();?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">...