idate
(PHP 5)
idate — Format a local time/date as integer
說明
Returns a number formatted according to the given format string using the given integer timestamp or the current local time if no timestamp is given. In other words, timestamp is optional and defaults to the value of time().
Unlike the function date(), idate() accepts just one char in the format parameter.
參數
- format
-
The following characters are recognized in the format parameter string format character Description B Swatch Beat/Internet Time d Day of the month h Hour (12 hour format) H Hour (24 hour format) i Minutes I returns 1 if DST is activated, 0 otherwise L returns 1 for leap year, 0 otherwise m Month number s Seconds t Days in current month U Seconds since the Unix Epoch - January 1 1970 00:00:00 GMT - this is the same as time() w Day of the week (0 on Sunday) W ISO-8601 week number of year, weeks starting on Monday y Year (1 or 2 digits - check note below) Y Year (4 digits) z Day of the year Z Timezone offset in seconds - timestamp
-
選擇性 timestamp 參數是一個 integer 類型的 Unix 時間戳記，如果沒給予 timestamp 則其預設值是目前本地時間。換句話說，預設為 time() 函式的值。
Return值
Returns an integer.
As idate() always returns an integer and as they can't start with a "0", idate() may return fewer digits than you would expect. See the example below.
錯誤/例外
如果時區無效，每個對日期／時間函式的呼叫都會產生一個 E_NOTICE 訊息，如果使用系統設定或 TZ 環境變數則會產生 E_STRICT 消息。參見 date_default_timezone_set()
更新日誌
| 版本 | 說明 |
|---|---|
| 5.1.0 | 現在發出 E_STRICT 和 E_NOTICE 時區錯誤。 |
範例
Example#1 idate() example
<?php
$timestamp = strtotime('1st January 2004'); //1072915200
// this prints the year in a two digit format
// however, as this would start with a "0", it
// only prints "4"
echo idate('y', $timestamp);
?>