How can PHP be integrated with HTML forms to create a seamless user experience for data input and display?

To integrate PHP with HTML forms, you can use PHP to process form data and display it back to the user. This allows for a seamless user experience where users can input data into a form, submit it, and see the results displayed on the same page.

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $name = $_POST["name"];
    $email = $_POST["email"];
    
    echo "Hello, $name! Your email is $email.";
}
?>

<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
    Name: <input type="text" name="name"><br>
    Email: <input type="email" name="email"><br>
    <input type="submit" value="Submit">
</form>