What are some common pitfalls when integrating PHP with HTML and CSS for dynamic content display?

One common pitfall when integrating PHP with HTML and CSS for dynamic content display is not properly escaping user input, which can lead to security vulnerabilities like cross-site scripting attacks. To solve this issue, always use functions like htmlspecialchars() to sanitize user input before displaying it on the page. 

<?php
// Unsafe user input
$user_input = "<script>alert('XSS attack!')</script>";

// Sanitize user input before displaying it
$safe_input = htmlspecialchars($user_input);
?>

<!DOCTYPE html>
<html>
<head>
    <title>Dynamic Content Display</title>
    <style>
        /* CSS styles */
    </style>
</head>
<body>
    <div>
        <?php echo $safe_input; ?>
    </div>
</body>
</html>

Keywords

PHP HTML CSS dynamic content integration

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