Date Time Php

echo strtotime ("now"), "\n";
echo strtotime ("10 September 2000"), "\n";
echo strtotime (" 1 day"), "\n";
echo strtotime (" 1 week"), "\n";
echo strtotime (" 1 week 2 days 4 hours 2 seconds"), "\n";
echo strtotime ("next Thursday"), "\n";
echo strtotime ("last Monday"), "\n";
?>
Checking for failure
$str = 'Not Good';
if (($timestamp = strtotime($str)) === -1) {
echo "The string ($str) is bogus";
} else {
echo "$str == ". date('l dS of F Y h:i:s A',$timestamp);
}
?>