getdate — 取得日期／时间信息-----参数是一个 integer 的 Unix 时间戳

<?php
$today = getdate();
print_r($today);
?>

Array
(
[seconds] => 40
[minutes] => 58
[hours]   => 21
[mday]    => 17
[wday]    => 2
[mon]     => 6
[year]    => 2003
[yday]    => 167
[weekday] => Tuesday
[month]   => June
[0]       => 1055901520
)