What are the advantages and disadvantages of storing visitor data in text files compared to using a database like MySQL?

Storing visitor data in text files can be simpler and more lightweight compared to using a database like MySQL. However, text files may not be as efficient for querying and managing large amounts of data. Databases like MySQL offer more robust features for data manipulation, querying, and scalability.

// Example of storing visitor data in a text file
$visitorData = "Name: John Doe, Email: john.doe@example.com, Date: 2022-01-01";
$file = 'visitor_data.txt';
file_put_contents($file, $visitorData . PHP_EOL, FILE_APPEND);