$mysqlnow="2011-03-03 00:10:34";
//強制的に各々の数字を取り出す
$year = substr($mysqlnow, 0, -15);
$month = substr($mysqlnow, 5, -12);
$day = substr($mysqlnow, 8, -9);
$hour = substr($mysqlnow, 11, -6);
$min = substr($mysqlnow, 14, -3);
$sec = substr($mysqlnow, 17);
//取った日数をUNIX通算秒に変換
$mysqlmk=mktime($hour,$min,$sec,$month,$day,$year);
//date関数で再度表示する
echo date("Y/n/j H:i:s",$mk);
