echo date('d F Y', strtotime ("-5 day")), "<br>";
echo date('d F Y', strtotime ("01 Jan 2008")), "<br>";
echo date('d F Y', strtotime ("2008-01-01 +10days")), "<br>";
12 maj 2008
echo date('d F Y', strtotime ("-5 day")), "<br>";
echo date('d F Y', strtotime ("01 Jan 2008")), "<br>";
echo date('d F Y', strtotime ("2008-01-01 +10days")), "<br>";