How can PHP be used to filter database records based on date values stored as timestamps?

To filter database records based on date values stored as timestamps in PHP, you can use the `FROM_UNIXTIME` function in MySQL to convert the timestamp to a date format that can be compared. You can then use this converted date in your SQL query to filter records based on a specific date range.

// Assuming $startTimestamp and $endTimestamp are the timestamps for the start and end dates
$startDate = date('Y-m-d', $startTimestamp);
$endDate = date('Y-m-d', $endTimestamp);

// Construct and execute SQL query to filter records based on date range
$query = "SELECT * FROM your_table WHERE FROM_UNIXTIME(timestamp_column) BETWEEN '$startDate' AND '$endDate'";
$result = mysqli_query($connection, $query);

// Process the query result as needed