To subtract 15 minutes from the current time, you can use strtotime():
$newTime = strtotime('-15 minutes');
echo date('Y-m-d H:i:s', $newTime);
To subtract 15 minutes from the current time, you can use strtotime():
$newTime = strtotime('-15 minutes');
echo date('Y-m-d H:i:s', $newTime);