How can PHP developers effectively utilize HTML5 and CSS3 for web development?

PHP developers can effectively utilize HTML5 and CSS3 for web development by incorporating these modern technologies into their PHP code. They can use PHP to dynamically generate HTML5 elements and attributes based on data from a database or user input. Additionally, PHP can be used to include CSS3 stylesheets and classes to enhance the visual presentation of the web application.

<?php
// PHP code to dynamically generate HTML5 elements and attributes
echo '<article>';
echo '<h1>Title</h1>';
echo '<p>Content</p>';
echo '</article>';

// PHP code to include CSS3 stylesheets and classes
echo '<link rel="stylesheet" type="text/css" href="styles.css">';
echo '<div class="container">';
echo '<p class="text">Text</p>';
echo '</div>';
?>