What are the potential pitfalls of using Ajax for automatically saving form data in PHP applications?

One potential pitfall of using Ajax for automatically saving form data in PHP applications is that it may lead to duplicate records being created if the user rapidly submits the form multiple times. To solve this issue, you can disable the form submission button after the first submission to prevent multiple requests from being sent. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Process form data and save to database

    // Disable form submission button after first submission
    echo '<script>document.getElementById("submitBtn").disabled = true;</script>';
}
?>

Keywords

Ajax form data automatic saving PHP applications potential pitfalls

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