What are the advantages and disadvantages of dynamically determining neighboring IDs in PHP for navigation?

When dynamically determining neighboring IDs in PHP for navigation, the advantage is that it allows for flexibility and scalability as the IDs are not hard-coded. This means that the navigation will automatically adjust as new content is added or removed. However, the disadvantage is that it may require more processing power to dynamically determine the neighboring IDs each time the page is loaded.

$current_id = 5; // Current ID of the page
$all_ids = [1, 2, 3, 4, 5, 6, 7, 8]; // Array of all available IDs

// Find the index of the current ID in the array
$current_index = array_search($current_id, $all_ids);

// Determine the neighboring IDs
$prev_id = ($current_index > 0) ? $all_ids[$current_index - 1] : null;
$next_id = ($current_index < count($all_ids) - 1) ? $all_ids[$current_index + 1] : null;

// Use $prev_id and $next_id for navigation links