I am trying to create a simple login system in WordPress using core PHP but I am getting this error message
Warning: Cannot modify header information - headers already sent by (output started at /www/www/www/wp-content/themes/mytheme/header.php:20) in /www/www/www/wp-content/themes/mytheme/page-solutions.php on line 9
In the header.php template I have
<?php
session_start();
/**
* The header.
*
*/
?>
<!doctype html>
<html lang="en">
<head>
...
and in the page-solutions.php page
<?php
/**
* Template Name: Solutions
*
*/
get_header();
if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true){
header("location: home");
exit;
}
As you can see I am trying to redirect not logged users to front-page.php which I called it Home but I am getting error on header("location: home"); Can you please let me know how to fix this?
Functions that modifies headers must be called before any output is made. In this case you're calling get_header() functions which sends an output, and then youre trying to modify the header. Try changing the order that you execute the code, like this:
<?php
/**
* Template Name: Solutions
*
*/
if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true){
header("location: home");
exit;
}
get_header();