How can PHP timestamps be effectively converted to dates for querying specific date ranges?

When working with PHP timestamps, they can be effectively converted to dates for querying specific date ranges by using the PHP date() function along with the strtotime() function. By converting timestamps to dates, you can easily query databases or manipulate date ranges in your PHP code.

// Convert timestamp to date for querying specific date ranges
$timestamp = 1609459200; // Example timestamp
$date = date('Y-m-d', $timestamp); // Convert timestamp to date format
echo $date; // Output: 2021-01-01