(PHP 5 >= 5.1.2, PHP 7)
date_sun_info — Returns an array with information about sunset/sunrise and twilight begin/end
$time
, float $latitude
, float $longitude
) : array
time
Timestamp.
latitude
Latitude in degrees.
longitude
Longitude in degrees.
Returns array on success ������ʧ��ʱ���� FALSE
.
The structure of the array is detailed in the following list:
The values of the array elements are either UNIX timestamps, FALSE
if the
sun is below the respective zenith for the whole day, or TRUE
if the sun is
above the respective zenith for the whole day.
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5.2.2 |
The order of latitude and
longitude has been swapped.
|
Example #1 A date_sun_info() example
<?php
$sun_info = date_sun_info(strtotime("2006-12-12"), 31.7667, 35.2333);
foreach ($sun_info as $key => $val) {
echo "$key: " . date("H:i:s", $val) . "\n";
}
?>
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sunrise: 05:52:11 sunset: 15:41:21 transit: 10:46:46 civil_twilight_begin: 05:24:08 civil_twilight_end: 16:09:24 nautical_twilight_begin: 04:52:25 nautical_twilight_end: 16:41:06 astronomical_twilight_begin: 04:21:32 astronomical_twilight_end: 17:12:00
Example #2 Polar night
<?php
var_dump(date_sun_info(strtotime("2017-12-21"), 90, 0));
?>
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array(9) { ["sunrise"]=> bool(false) ["sunset"]=> bool(false) ["transit"]=> int(1513857490) ["civil_twilight_begin"]=> bool(false) ["civil_twilight_end"]=> bool(false) ["nautical_twilight_begin"]=> bool(false) ["nautical_twilight_end"]=> bool(false) ["astronomical_twilight_begin"]=> bool(false) ["astronomical_twilight_end"]=> bool(false) }
Example #3 Midnight sun
<?php
var_dump(date_sun_info(strtotime("2017-06-21"), 90, 0));
?>
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array(9) { ["sunrise"]=> bool(true) ["sunset"]=> bool(true) ["transit"]=> int(1498046510) ["civil_twilight_begin"]=> bool(true) ["civil_twilight_end"]=> bool(true) ["nautical_twilight_begin"]=> bool(true) ["nautical_twilight_end"]=> bool(true) ["astronomical_twilight_begin"]=> bool(true) ["astronomical_twilight_end"]=> bool(true) }