How can invalid HTML elements, such as the deprecated "menu" tag, impact the functionality of PHP code that relies on them?

Invalid HTML elements like the deprecated "menu" tag can impact the functionality of PHP code that relies on them because PHP often interacts with HTML elements to generate dynamic content. If PHP code is expecting a specific HTML element that is invalid or deprecated, it may not function as intended or throw errors. To solve this issue, it is important to use valid HTML elements that are supported by the latest standards to ensure seamless integration with PHP code. 

<!DOCTYPE html>
<html>
<head>
    <title>Valid HTML Example</title>
</head>
<body>
    <nav>
        <ul>
            <li><a href="#">Home</a></li>
            <li><a href="#">About</a></li>
            <li><a href="#">Contact</a></li>
        </ul>
    </nav>
    
    <?php
    // PHP code that interacts with the valid HTML elements
    ?>
</body>
</html>

Keywords

invalid HTML elements deprecated tag menu tag functionality PHP code

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