How to redirect a file using function - php

Question

I'm trying to access my file where it contains a home page using a function from another file (redirect.php). MyWebsite/main/main.html this is the location of my file that I want to access. I stuck in here redirect::toMain('main.html'); don't have a idea how to link the full path so I will be directing to the home page. I tried to pass ('main.html') value to the function toMain() but it didn't work. Location of folder below.
So MyWebsite is the main folder and it contains sub-folder listed below.
function (folder) contains a redirect function
main (folder) contains a html. main.html where it set as my home page. This is where the user will redirect.
Class: redirect.php Location: MyWebsite/function/redirect.php
<?php
class redirect
{
public static function toMain($location = null)
{
if($location)
{
header('Location: ' . $location);
exit();
}
}
}
$a = new redirect();
?>
loginProcess.php
<?php
session_start();
require_once('../connection/connection.php');
require_once('../connection/loginCRUD.php');
require_once('../function/redirect.php');
if(isset($_POST['submit']))
{
$dbusername = $_POST['loginUsername']; //Store value of textfield in array
$dbpassword = $_POST['loginPassword'];
if(!empty($dbusername) && !empty($dbpassword))
{
if((new loginCRUD)->readLogin($dbusername,$dbpassword)) //If true
{
// echo "You are logged in!";
$_SESSION['loginUsername'] = $dbusername;//Session are stored in array.
// redirect the user to the home page
redirect::toMain('main.html');
}
else
{
echo "Incorrect username and/or password";
}
}
}//end of isset
?>

Answer 1

Here is one way that I would do this:
class redirect
{
private static $baseUrl = 'http://localhost/MyWebsite/main/';
public static function toMain($location = null)
{
if($location)
{
header('Location: ' . self::$baseUrl . $location);
exit();
}
}
}
The $baseUrl can also be this:
private static $baseUrl = '/MyWebsite/main/';
Make sure that MyWebsite starts with http:// or it will redirect to a relative URL. You don't need $a = new redirect(); since you are accessing the methods statically.
Now you can do this:
redirect::toMain('main.html');