(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
)
timeTimestamp.
latitudeLatitude in degrees.
longitudeLongitude in degrees.
Returns array on success or FALSE on failure.
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.
| Version | Description |
|---|---|
| 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";
}
?>
The above example will output:
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));
?>
The above example will output:
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));
?>
The above example will output:
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)
}