How can one efficiently retrieve and display comments and subcomments from a database using PHP?

To efficiently retrieve and display comments and subcomments from a database using PHP, you can use a recursive function to fetch and display the comments along with their respective subcomments. This recursive function can be called for each comment to retrieve its subcomments, creating a nested structure for displaying the comments and subcomments. 

<?php
// Function to retrieve and display comments and subcomments
function displayComments($parent_id = 0, $level = 0) {
    // Retrieve comments from the database for the given parent_id
    // Display comments at the current level
    // Call the function recursively for each comment to retrieve and display its subcomments
}

// Call the function to display comments starting from the top-level comments
displayComments();
?>

Keywords

PHP database retrieval comments subcomments

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