How can PHP developers effectively incorporate HTML codes into their PHP scripts while maintaining code readability and efficiency?

PHP developers can effectively incorporate HTML codes into their PHP scripts by using heredoc syntax or concatenation. This helps maintain code readability by separating HTML markup from PHP logic. Additionally, utilizing templating engines like Twig or Blade can further improve code organization and efficiency.

<?php

// Using heredoc syntax for embedding HTML in PHP
$html = <<<HTML
<!DOCTYPE html>
<html>
<head>
    <title>Example Page</title>
</head>
<body>
    <h1>Welcome to our website!</h1>
</body>
</html>
HTML;

echo $html;