How can developers ensure proper spacing and formatting when generating HTML elements with PHP conditionals?

When generating HTML elements with PHP conditionals, developers can ensure proper spacing and formatting by using PHP's heredoc syntax or concatenation to separate HTML markup from PHP logic. This helps maintain clean and readable code by clearly distinguishing between PHP code and HTML output.

<?php
if ($condition) {
    echo <<<HTML
    <div>
        <p>This is some content.</p>
    </div>
    HTML;
}
?>