What considerations should be taken into account when choosing between MySQL and UNIX timestamps for date/time operations in PHP?

When choosing between MySQL and UNIX timestamps for date/time operations in PHP, consider factors such as compatibility with other systems, ease of manipulation, and performance. MySQL timestamps are stored in a specific format that may not be easily manipulated in PHP, while UNIX timestamps are integers representing the number of seconds since the Unix epoch and are more versatile for date/time calculations in PHP.

// Example of using UNIX timestamps for date/time operations in PHP
$timestamp = time(); // Get current UNIX timestamp
echo date('Y-m-d H:i:s', $timestamp); // Convert UNIX timestamp to readable date/time format