(PHP 5 >= 5.1.2)
date_sun_info — Returns an array with information about sunset/sunrise and twilight begin/end
Timestamp.
Latitude in degrees.
Longitude in degrees.
Returns array on success 或者在失败时返回 FALSE.
Example #1 A date_sun_info() example 以上例程会输出：
<?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) . "
";
}
?>
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