How can unexpected errors like "unexpected T_IF" be resolved when working with PHP form submissions?

To resolve unexpected errors like "unexpected T_IF" when working with PHP form submissions, ensure that your if statements are properly formatted with the correct syntax. Make sure that each opening curly brace '{' is matched with a closing curly brace '}'. Additionally, check for any missing or misplaced parentheses in your conditional statements.

<?php

if (isset($_POST['submit'])) {
    // Your form submission processing code here
}