What are the potential pitfalls of manually entering a page's URL to bypass login restrictions in PHP?

Manually entering a page's URL to bypass login restrictions in PHP can compromise the security of the application by allowing unauthorized access to restricted content. To prevent this, you can implement server-side validation to check if the user is logged in before granting access to the page. 

```php
session_start();

if(!isset($_SESSION['logged_in'])) {
    header("Location: login.php");
    exit();
}
```

This code snippet checks if the user is logged in by verifying the existence of a 'logged_in' session variable. If the variable is not set, the user is redirected to the login page.

Keywords

URL login restrictions bypass security authentication

Related Questions