What are the best practices for structuring PHP files to optimize search engine indexing?

To optimize search engine indexing for PHP files, it is essential to have clean and organized code structure. This includes using proper HTML markup, having descriptive filenames and URLs, using relevant meta tags, and ensuring the content is easily accessible for search engine crawlers.

<?php
// Include necessary meta tags in the head section of your PHP file
echo '<meta name="description" content="Your page description">';
echo '<meta name="keywords" content="keyword1, keyword2, keyword3">';

// Ensure clean and descriptive URLs
// For example, use "example.com/my-page" instead of "example.com/page.php?id=123"

// Use proper HTML markup with semantic elements for better indexing
echo '<h1>Main heading</h1>';
echo '<p>Your content here</p>';

// Make sure your PHP file is accessible to search engine crawlers by avoiding complex JavaScript or AJAX content
?>