How can PHP be used to pass variables between different pages without using links?

To pass variables between different pages in PHP without using links, you can use sessions. By storing the variables in session variables, you can access them on different pages within the same session. This allows you to pass data between pages without relying on URL parameters or form submissions.

// On the first page
session_start();
$_SESSION['variable_name'] = $value;

// On the second page
session_start();
$passed_variable = $_SESSION['variable_name'];