Are there any specific PHP functions or methods recommended for handling timestamps and date conversions?

When working with timestamps and date conversions in PHP, the `strtotime()` function is commonly used to convert date/time strings into Unix timestamps. Additionally, the `date()` function is useful for formatting timestamps into different date formats. These functions can help handle timestamps and date conversions effectively in PHP.

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

// Format the timestamp into a specific date format
$formatted_date = date('Y-m-d H:i:s', $timestamp);

echo $formatted_date;