How can an alert box be implemented in PHP for confirmation messages after form submission?

When a form is submitted in PHP, you can use JavaScript to display an alert box for confirmation messages. This can be achieved by echoing a script tag with the alert function in the PHP code that processes the form submission. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Process form submission
    // Display confirmation message using alert box
    echo '<script>alert("Form submitted successfully!");</script>';
}
?>

Keywords

PHP alert box form submission confirmation message JavaScript

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