What is the significance of the accept-charset attribute in a form tag in PHP?

The accept-charset attribute in a form tag specifies the character encodings that are accepted by the server when processing the form data. This is important for ensuring that the data submitted by the form is correctly interpreted by the server. If not specified, the default character encoding of the server will be used, which may lead to issues with special characters or non-standard character sets.

<form action="process_form.php" method="post" accept-charset="UTF-8">
  <!-- form fields go here -->
</form>