What potential issue could cause a form in a modal not to submit in PHP?

One potential issue that could cause a form in a modal not to submit in PHP is if the modal is not properly handling the form submission event. This could be due to JavaScript errors or incorrect event handling. To solve this issue, ensure that the form submission event is being captured correctly and that the form data is being sent to the PHP script for processing.

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Process form data here
    // For example, you can access form fields using $_POST superglobal
    $name = $_POST['name'];
    $email = $_POST['email'];
    
    // Perform any necessary validation or database operations
    
    // Redirect or display success message
    header("Location: success.php");
    exit();
}
?>