How can one effectively search and navigate the PHP documentation for directory and filesystem functions?

Searching and navigating the PHP documentation for directory and filesystem functions can be effectively done by using the search bar on the PHP website or by browsing the functions by category. Additionally, using keywords related to directory and filesystem operations can help narrow down the search results. It's also helpful to read through the function descriptions, parameters, and examples provided in the documentation to understand how to use them properly.

// Example: Using PHP documentation to search for directory functions
$search_term = 'directory functions';
$search_results = file_get_contents('https://www.php.net/manual-lookup.php?pattern=' . urlencode($search_term));
echo $search_results;