PHP时间戳与日期之间转换_PHP教程

echo(strtotime("now"));
echo(strtotime("3 October 2005"));
echo(strtotime("+5 hours"));
echo(strtotime("+1 week"));
echo(strtotime("+1 week 3 days 7 hours 5 seconds"));
echo(strtotime("next Monday"));
echo(strtotime("last Sunday"));
?>

输出：

1138614504
1128290400
1138632504
1139219304
1139503709
1139180400
1138489200

$a = date();
$mk = strtotime($a)

$y=date("Y",time());
$m=date("m",time());
$d=date("d",time());
$start_time = mktime(9, 0, 0, $m, $d ,$y);
$end_time = mktime(19, 0, 0, $m, $d ,$y);

$time = time();
if($time >= $start_time && $time <= $end_time)
{
// do something....
}
?>

$time = time();
$date = date("Y-m-d",$time);
echo 'www.bKjia.c0m 提示'.$date
?>