How to implement page history in PHP?

Question

PHP

How to implement the display of the history of visits on the page? We have 3 files with php extension and they have links to each other. Let me explain in more detail: we are on page 1, we follow the link to page 2, and at the bottom of the page the name of the place from where we went is displayed. I know that it can be implemented using sessions, but I don’t know exactly how.

Answer 1

session_start();
if (isset($_SESSION['history'])) {
    echo 'Вы пришли с '.end($_SESSION['history']);
}
$_SESSION['history'][] = $_SERVER['REQUEST_URI'];

Answer 2

You can even basically limit yourself to a referrer ($_SERVER['HTTP_REFERER'])

switch ($_SERVER['HTTP_REFERER']) {
    case 'http://domain.com/page1.php':
        $referer = 'PAGE #1';
        break;
    case 'http://domain.com/page2.php':
        $referer = 'PAGE #2';
        break;
    case 'http://domain.com/page3.php':
        $referer = 'PAGE #3';
        break;
    default:
        $referer = '';
        break;
}
// ...
if ($referer) {
    echo 'Вы пришли с ' . $referer;
}

Answer 3

and how, it is possible that the record about which page we switched from is not replaced by a new one every time, but that the history is displayed in full. those. you come from 1, you come from 2, and so on.