How can PHP developers prevent multiple form submissions due to keyboard bounce?

Keyboard bounce can be prevented by disabling the submit button after it has been clicked once to prevent multiple form submissions. This can be achieved by using JavaScript to disable the button on click. Here is an example PHP code snippet that includes the necessary JavaScript function to disable the submit button: 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Process form submission
    // Add your form processing logic here

    // Disable submit button to prevent multiple submissions
    echo '<script type="text/javascript">document.getElementById("submitBtn").disabled = true;</script>';
}
?>

<form method="post" action="">
    <!-- Your form fields here -->
    <input type="submit" id="submitBtn" value="Submit">
</form>

Keywords

PHP form submission keyboard bounce prevent duplicate entries

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