How can PHP be used to display visitor information on a login page?

To display visitor information on a login page using PHP, you can use session variables to store the visitor's information after they log in. This information can then be retrieved and displayed on the login page. 

<?php
session_start();

// Check if user is logged in
if(isset($_SESSION['username'])) {
    echo "Welcome back, ".$_SESSION['username']."!";
} else {
    echo "Please log in to view this page.";
}
?>

Keywords

PHP visitor information login page display authentication

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