How can PHP code be validated to ensure compliance with W3C standards?

To validate PHP code for compliance with W3C standards, you can use online tools like the W3C Markup Validation Service or the W3C CSS Validation Service. These tools will check your PHP-generated HTML output for any errors or warnings that may not adhere to W3C standards. Additionally, you can also ensure compliance by following best practices for writing clean and semantic HTML within your PHP code. 

// Example PHP code snippet generating HTML that can be validated with W3C tools
<!DOCTYPE html>
<html>
<head>
    <title>My Page</title>
</head>
<body>
    <?php
        echo "<h1>Welcome to my page!</h1>";
        echo "<p>This is some sample content.</p>";
    ?>
</body>
</html>

Keywords

PHP validation W3C standards compliance error checking

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