(PHP 5)
date_sunrise — Returns time of sunrise for a given day and location
date_sunrise() returns the sunrise time for a given day (specified as a timestamp ) and location.
The timestamp of the day from which the sunrise time is taken.
constant | description | example |
---|---|---|
SUNFUNCS_RET_STRING | returns the result as string | 16:46 |
SUNFUNCS_RET_DOUBLE | returns the result as float | 16.78243132 |
SUNFUNCS_RET_TIMESTAMP | returns the result as integer (timestamp) | 1095034606 |
Defaults to North, pass in a negative value for South. See also: date.default_latitude
Defaults to East, pass in a negative value for West. See also: date.default_longitude
Default: date.sunrise_zenith
Specified in hours.
Returns the sunrise time in a specified format on success, or FALSE on failure.
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()
版本 | 說明 |
---|---|
5.1.0 | 現在發出 E_STRICT 和 E_NOTICE 時區錯誤。 |
Example#1 date_sunrise() example
<?php
/* calculate the sunrise time for Lisbon, Portugal
Latitude: 38.4 North
Longitude: 9 West
Zenith ~= 90
offset: +1 GMT
*/
echo date("D M d Y"). ', sunrise time : ' .date_sunrise(time(), SUNFUNCS_RET_STRING, 38.4, -9, 90, 1);
?>
上例的輸出類似於:
Mon Dec 20 2004, sunrise time : 08:54