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    getdate

    (PHP 4, PHP 5, PHP 7, PHP 8)

    getdate — 获取日期/时间信息

    说明

    getdate(?int $timestamp = null): array

    返回关联 array，包含 timestamp 或者当前本地时间（如果省略 timestamp 或为 null）的日期信息。

    参数

    timestamp

    可选的 timestamp 参数是一个 int 的 Unix 时间戳，如未指定或是 null，参数值默认为当前本地时间。也就是说，其值默认为 time() 的返回值。

    返回值

    返回关联 array，包含 timestamp 相关信息。返回的关联数组中的元素如下：

    返回的关联数组中的键元素
    键名 说明 返回值例子
    "seconds" 秒的数字表示 0 到 59
    "minutes" 分钟的数字表示 0 到 59
    "hours" 小时的数字表示 0 到 23
    "mday" 月份中第几天的数字表示 1 到 31
    "wday" 星期几的数字表示 0（周日）到 6（周六）
    "mon" 月份的数字表示 1 到 12
    "year" 4 位数字表示的完整年份 比如： 1999 或 2003
    "yday" 一年中第几天的数字表示 0 到 365
    "weekday" 星期几的完整文本表示 Sunday 到 Saturday
    "month" 月份的完整文本表示，比如 January 或 March January 到 December
    0 自从 Unix 纪元开始至今的秒数，和 time() 的返回值以及用于 date() 的值类似。 系统相关，通常从 -2147483648 到 2147483647。

    更新日志

    版本 说明
    8.0.0 现在 timestamp 允许为 null。

    示例

    示例 #1 getdate() 例子

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

    以上示例的输出类似于：

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

    参见

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    User Contributed Notes 6 notes

    up
    33
    vimal866 at gmail dot com
    9 years ago
    Andre's code will throw an error. for the following line
       
         $d = $todayh[mday];
         $m = $todayh[mon];
         $y = $todayh[year];

    "Notice : Undefined constant mday ,mon,year"

    As is, it was looking for constants called mday, mon, year etc. When it doesn't find such a constant, PHP interprets it as a string.

    like any other request it should be wrapped in quotes like this

         $d = $todayh['mday'];
         $m = $todayh['mon'];
         $y = $todayh['year'];
    up
    19
    Yura Pylypenko (plyrvt at mail dot ru)
    21 years ago
    In addition to canby23 at ms19 post:
    It's a very bad idea to consider day having 24 hours (86400 secs), because some days have 23, some - 25 hours due to daylight saving changes. Using of mkdate() and strtotime() is always preferred. strtotime() also has a very nice behaviour of datetime manipulations:
    <?php
    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";
    ?>
    up
    -13
    andre at anlex dot co dot za
    18 years ago
    I thought best to show a posseble way to go about bypassing the end month issue where the first day in a new month will have the monday of the week that it falls in - in the old month. Use the numbering of days as the constant and work you way from there.

    Example:
    <?php
    //-----------------------------
    $now = time();
    $num = date("w");
    if (    $num == 0)
    {     $sub = 6; }
    else {     $sub = ($num-1); }
    $WeekMon  = mktime(0, 0, 0, date("m", $now)  , date("d", $now)-$sub, date("Y", $now));    //monday week begin calculation
    $todayh = getdate($WeekMon); //monday week begin reconvert

    $d = $todayh[mday];
    $m = $todayh[mon];
    $y = $todayh[year];
    echo     "$d-$m-$y"; //getdate converted day

    ?>

    Allot less code makes everyone happy..
    up
    -8
    info at ajawbk dot com
    6 years ago
    another gmgetdate that is a little faster/suscint (no loops).

    <?php
    function gmgetdate2($ts = null){
                $k = array('seconds','minutes','hours','mday',
                        'wday','mon','year','yday','weekday','month',0);
            return(    array_combine($k,split(":",
                        gmdate('s:i:G:j:w:n:Y:z:l:F:U',is_null($ts)?time():$ts))));
            }
    ?>

    https://ajawbk.com/
    up
    -74
    timforte at gmail dot com
    16 years ago
    It's worth noting that this is local time, not UTC/GMT - gmgetdate doesn't exist :(.

    The most logical way to handle date arithmetic without hitting DST problems is to work in UTC...

    <?php
    function add_days($my_date,$numdays) {
          $date_t = strtotime($my_date.' UTC');
      return     gmdate('Y-m-d',$date_t + ($numdays*86400));
    }
    ?>

    [it's even faster if you use gmmktime instead of strtotime]
    up
    -82
    eric dot schultz at NOSPAM dot CyVon dot com
    16 years ago
    Here is another gmgetdate that is a little faster/suscint (no loops).

    <?php
    function gmgetdate2($ts = null){
                $k = array('seconds','minutes','hours','mday',
                        'wday','mon','year','yday','weekday','month',0);
            return(    array_combine($k,split(":",
                        gmdate('s:i:G:j:w:n:Y:z:l:F:U',is_null($ts)?time():$ts))));
            }
    ?>

    It also returns the values in the same order as getdate.
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