In what ways can HTML output generated by PHP scripts be optimized to ensure valid and functional markup for web pages?

To optimize HTML output generated by PHP scripts, it is important to ensure that the markup is valid and functional for web pages. This can be achieved by properly structuring the HTML code, using appropriate tags, and escaping any user input to prevent cross-site scripting attacks. Additionally, it is recommended to separate PHP logic from HTML presentation by using a template engine like Twig or Smarty. 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Optimized HTML Output</title>
</head>
<body>
    <h1>Welcome to our website!</h1>
    <?php
        $username = htmlspecialchars($_GET['username']);
        echo "<p>Hello, $username!</p>";
    ?>
</body>
</html>

Keywords

HTML output PHP scripts optimization valid markup functional markup

Related Questions