What are the potential issues with using strftime for date formatting in PHP, especially in relation to timestamps before 2037 or after 1902/1971?

The potential issue with using strftime for date formatting in PHP is that it may not handle timestamps before 2037 or after 1902/1971 correctly due to limitations in the underlying C library it relies on. To solve this issue, you can use the DateTime class in PHP, which provides more flexibility and accuracy in handling dates and times.

$date = new DateTime();
$date->setTimestamp($timestamp);
$formatted_date = $date->format('Y-m-d H:i:s');
echo $formatted_date;