My website works flawlessly in my XAMPP localhost, and I tried to upload it in free hosting server to test it but I encountered these errors and I dont know how to fix them, please help.
the session.php is for pages that only logged in users can see, if tried to go to e.g dashboard.php when not logged in, page will redirect to login.php
Error 1 :
Notice: Undefined index: login_user in /public_html/session.php on line 6 Go back
Error 2 :
Warning: Cannot modify header information - headers already sent by (output started at public_html/session.php:6) in public_html/session.php on line 15
And this is my session.php
<?php
session_start();
include('db.php');
$user_check=$_SESSION['login_user']; //THIS IS LINE 6
$ses_sql=mysqli_query($db,"select username,mem_id from member where
username='$user_check' ");
$row=mysqli_fetch_array($ses_sql,MYSQLI_ASSOC);
$loggedin_session=$row['username'];
$loggedin_id=$row['mem_id'];
if(!isset($loggedin_session) || $loggedin_session==NULL)
{
echo "Go back";
header("Location: login.php"); //THIS IS LINE 15
}
?>
And Error 3 :
Warning: mysqli_fetch_array() expects parameter 1 to be mysqli_result, boolean given in /public_html/dashboard.php on line 41
This is my dashboard.php
<?php
include('db.php');
$sql="SELECT * FROM member where mem_id=$loggedin_id";
$result=mysqli_query($db,$sql);
?>
<?php
while($rows=mysqli_fetch_array($result)){ //THIS IS LINE 41
?>
If you noticed the open bracket in line 41, there is php code at the bottom of my dashboard page :
<?php
// close while loop
}
?>
<?php
// close connection;
mysqli_close($db);
?>
I really dont know if this is necessary or not because Im just getting ideas from other public and open source php codes online.