What potential pitfalls should be considered when using an image button to submit a form in PHP?

One potential pitfall when using an image button to submit a form in PHP is that the form may be submitted multiple times if the user clicks the image button more than once. To prevent this, you can use JavaScript to disable the image button after it has been clicked to ensure that the form is only submitted once. 

<script>
function disableButton() {
    document.getElementById("submitButton").disabled = true;
}
</script>

<form method="post" action="submit_form.php">
    <input type="text" name="name" placeholder="Name">
    <input type="image" src="submit_button.png" alt="Submit" onclick="disableButton()" id="submitButton">
</form>

Keywords

image button form submission PHP security vulnerabilities CSRF protection

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