How can the issue of appending previous data to new data be avoided when fetching and displaying comments and replies in PHP?

When fetching and displaying comments and replies in PHP, the issue of appending previous data to new data can be avoided by clearing the previous data before fetching and displaying the new data. This can be done by resetting the variables storing the comments and replies before querying the database for new data. 

// Clear previous data before fetching and displaying new comments and replies
$comments = [];
$replies = [];

// Query the database to fetch new comments and replies
// Display the new comments and replies

Keywords

PHP data appending comments replies fetching

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