Are there any best practices for converting timestamps to dates or vice versa in PHP?

When working with timestamps and dates in PHP, it is important to convert between the two formats accurately to ensure proper functionality. One common approach is to use the `date()` function to convert timestamps to dates and the `strtotime()` function to convert dates to timestamps. Additionally, it is important to consider the timezone when converting between timestamps and dates to avoid discrepancies.

// Convert timestamp to date
$timestamp = time();
$date = date('Y-m-d H:i:s', $timestamp);

// Convert date to timestamp
$date = '2022-01-01 12:00:00';
$timestamp = strtotime($date);