What steps can be taken to troubleshoot and resolve page flickering and reload issues in PHP forms?

Page flickering and reload issues in PHP forms can often be caused by the form being submitted multiple times due to user interactions or browser behavior. To troubleshoot and resolve this issue, you can implement a simple check to prevent the form from being submitted multiple times within a short period. 

<?php
session_start();

if ($_SERVER['REQUEST_METHOD'] === 'POST' && !isset($_SESSION['form_submitted'])) {
    // Process form submission here

    // Set session variable to prevent multiple submissions
    $_SESSION['form_submitted'] = true;
    
    // Redirect to a thank you page or reload the current page to prevent resubmission
    header('Location: thank_you.php');
    exit();
}
?>

Keywords

PHP form submission AJAX jQuery page refresh

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