How can JavaScript be integrated with PHP headers for form submission validation and page refreshes?

To integrate JavaScript with PHP headers for form submission validation and page refreshes, you can use JavaScript to handle client-side validation before submitting the form to a PHP script that processes the data. You can then use PHP headers to redirect the user to a new page or refresh the current page based on the validation result. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Server-side validation logic here

    if ($valid) {
        // Process form data
        header("Location: success.php");
        exit();
    } else {
        // Display error message
        header("Location: error.php");
        exit();
    }
}
?>

Keywords

JavaScript PHP headers form submission validation page refreshes

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