What is the difference between using Date and gmdate functions to handle timestamps in PHP?

When handling timestamps in PHP, the main difference between the Date and gmdate functions is how they handle time zones. Date will use the default time zone set in the PHP configuration, while gmdate will always use Greenwich Mean Time (GMT) regardless of the default time zone. Therefore, if you need to work with timestamps in a specific time zone or want to ensure consistency across different servers, it is recommended to use gmdate.

// Using gmdate to handle timestamps in GMT
$timestamp = time(); // Get current timestamp
$gmt_timestamp = gmdate('Y-m-d H:i:s', $timestamp); // Convert timestamp to GMT
echo $gmt_timestamp;