date_sun_info

(PHP 5 >= 5.1.2, PHP 7, PHP 8)

date_sun_infoRetourne un tableau avec les informations sur le lever/coucher du soleil ainsi que le début et la fin de l'aube

Description

date_sun_info(int $timestamp, float $latitude, float $longitude): array

Liste de paramètres

timestamp

Horodatage Unix.

latitude

Latitude, en degrés.

longitude

Longitude, en degrés.

Valeurs de retour

Retourne un tableau en cas de succès ou false si une erreur survient. La structure du tableau est détaillé dans la liste suivante :

sunrise
L'horodatage du levé du soleil (angle de zenith = 90°35').
sunset
L'horodatage du coucher du soleil (angle de zenith = 90°35').
transit
L'horodatage où le soleil est à son zénith, c'est-à-dire a atteint son point le plus haut.
civil_twilight_begin
Le début de l'aube civile (angle de zenith = 96°). Il termine au sunrise.
civil_twilight_end
La fin du crépuscule civil (angle de zenith = 96°). Elle commence au sunset.
nautical_twilight_begin
Le début de l'aube nautique (angle de zenith = 102°). Il termine au civil_twilight_begin.
nautical_twilight_end
La fin du crépuscule nautique (angle de zenith = 102°). Elle commence a civil_twilight_end.
astronomical_twilight_begin
Le début de l'aube astronomique (angle de zenith = 108°). Il termine au nautical_twilight_begin.
astronomical_twilight_end
La fin du crépuscule astronomique (angle de zenith = 108°). Elle commence a nautical_twilight_end.

Les valeurs des éléments du tableau sont soit des timestamps UNIX, false, si le soleil est sous le zenith respectif pour la journée entière, ou true, si le soleil est au dessus du zenith respectif pour toute la journée.

Historique

Version Description
7.2.0 Le calcul a été corrigé en tenant compte du minuit local au lieu du midi local, ce qui modifie légèrement les résultats.

Exemples

Exemple #1 Exemple avec date_sun_info()

<?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";
}
?>

L'exemple ci-dessus va afficher :

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

Exemple #2 Nuit polaire avec un peu de traitement

<?php
$tz
= new \DateTimeZone('America/Anchorage');

$si = date_sun_info(strtotime("2022-12-21"), 70.21, -148.51);
foreach (
$si as $key => $value) {
echo
match (
$value) {
true => 'always',
false => 'never',
default =>
date_create("@{$value}")->setTimeZone($tz)->format( 'H:i:s T' ),
},
": {$key}",
"\n";
}
?>

L'exemple ci-dessus va afficher :

never: sunrise
never: sunset
12:52:18 AKST: transit
10:53:19 AKST: civil_twilight_begin
14:51:17 AKST: civil_twilight_end
09:01:47 AKST: nautical_twilight_begin
16:42:48 AKST: nautical_twilight_end
07:40:47 AKST: astronomical_twilight_begin
18:03:49 AKST: astronomical_twilight_end

Exemple #3 Soleil de minuit (Tromso, Norvège)

<?php
$si
= date_sun_info(strtotime("2022-06-26"), 69.68, 18.94);
print_r($si);
?>

L'exemple ci-dessus va afficher :

Array
(
    [sunrise] => 1
    [sunset] => 1
    [transit] => 1656240426
    [civil_twilight_begin] => 1
    [civil_twilight_end] => 1
    [nautical_twilight_begin] => 1
    [nautical_twilight_end] => 1
    [astronomical_twilight_begin] => 1
    [astronomical_twilight_end] => 1
)

Exemple #4 Calcul de la durée du jour (Kyiv)

<?php
$si
= date_sun_info(strtotime('2022-08-26'), 50.45, 30.52);
$diff = $si['sunset'] - $si['sunrise'];
echo
"Durée du jour: ",
floor($diff / 3600), "h ",
floor(($diff % 3600) / 60), "s\n";
?>

L'exemple ci-dessus va afficher :

Durée du jour: 13h 56s

add a note add a note

User Contributed Notes 4 notes

up
3
ELY M.
13 years ago
I have been working on my own php script to get current down or up for sun and moon.   I had to add function for any places that have 24 hour sun. 

here is my code for places with 24 hour sun.

<?php
  
if ($sunrise == 0 && $sunset == 0) {
  
$sunrise24 = "";
  
$sunset24 = "";
  
//run suninfo
  
$sunup = date_sun_info(strtotime($year."-".$month."-".$day), $lat, $lon);
   }

//check if sun is up all day.
if ($sunup[sunrise] == 1 && $sunup[sunrise] == 1) {
imagecopy($sky, $sun, 60, 20, 0, 0, $sun_width, $sun_height);
imagefill($sky, 0, 0, $bluesky);
}
?>
up
1
nospam at nomail dot com
5 years ago
maybe I am wrong, but I think

SUNFUNCS_RET_TIMESTAMP     return GMT(0) time

SUNFUNCS_RET_STRING     Return local time
SUNFUNCS_RET_DOUBLE     Return local time
up
1
mother at localsnow dot com
13 years ago
We needed the length of the day, both sunrise to sunset and twilight to twilight for particular latitudes. Sun_info() is just the thing. We mistakenly thought 'transit' was this value, which it is not. Transit is the time of day the sun is at its zenith. To get length of day, one must perform math on the results of sun_info().

When doing math with time values, don't expect date() to do the conversion to hours:minutes:seconds. date() thinks the passed value is a time since the epoch. You will need to do your own conversion to hours:minutes:seconds, using something like the following:
<?php
function hms($val) {
// convert seconds to hours:minutes:seconds
$v=$val;
$h=intval($v/3600);
$v-=($h*3600); // subtract hours
$m=intval($v/60);
$v-=($m*60); // subtract minutes
$s=$v % 60; // seconds remaining
if ($h<10) {$h="0".$h;}
if (
$m<10) {$m="0".$m;}
if (
$s<10) {$s="0".$s;}
return
$h.":".$m.":".$s;
}
?>

Regarding date_sunrise() and date_sunset(), these both return values without seconds and without correction for Daylight time. Whereas sun_info() handles seconds as well as Daylight time. It even handles dates prior to the epoch correctly as negative timestamps, at least as of php 5.2.12

For example,
sun_info(strtotime('July 4, 1776'),47.3506,-122.6417)
produces something like the following when using date_default_timezone_set('America/Los_Angeles') and
date("H:i:s", $val)

sunrise: 04:20:26 [-6106016374]
sunset: 20:09:03 [-6105959457]
transit: 12:14:45 [-6105987915]
civil_twilight_begin: 03:40:54 [-6106018746]
civil_twilight_end: 20:48:35 [-6105957085]
nautical_twilight_begin: 02:46:58 [-6106021982]
nautical_twilight_end: 21:42:31 [-6105953849]
astronomical_twilight_begin: 01:28:06 [-6106026714]
astronomical_twilight_end: 23:01:23 [-6105949117]

* * *
up
1
info at mobger dot de
3 years ago
The relation between timestamp and geoposition is not good defined.
My try of a definition is:

date_sun_info —
Returns an array with information about sunset/sunrise and twilight begin/end as Unix-Timestamp for the the geoposition, which must have the same (local) date as the timestamp in the parameter-block for the function `date_sun_info`.

<?php
<?php
$tStamp 
= strtotime('2020-12-04');
$latitude = 50;
echo(
"\n");
foreach([-
181,-180,0,180,360] as $longitude ) {
    foreach([-
86401,-86400,-86399, -1,0,1,86399, 86400,86401] as $variTimeStamp) {

       
$sunInfoList = date_sun_info(($tStamp-$variTimeStamp),$latitude, $longitude);
       
$sunrise = new DateTime('@'.$sunInfoList['sunrise']);
        echo(
$sunInfoList['sunrise']. ' => '.$sunrise->format('H:i:s d.m.Y').' || [ '.$variTimeStamp.' // ' . $longitude.'° ]');
        echo(
"\n");
    }   
    echo(
"\n");
}

?>

You may recognize the equivalence of `[ 0 // 360° ]` and `[ 86400 // 0° ]` in the results.
The result is:
<?php
/**
1607197612 => 19:46:52 05.12.2020 || [ -86401 // -181° ]
1607197612 => 19:46:52 05.12.2020 || [ -86400 // -181° ]
1607111141 => 19:45:41 04.12.2020 || [ -86399 // -181° ]
1607111141 => 19:45:41 04.12.2020 || [ -1 // -181° ]
1607111141 => 19:45:41 04.12.2020 || [ 0 // -181° ]
1607024668 => 19:44:28 03.12.2020 || [ 1 // -181° ]
1607024668 => 19:44:28 03.12.2020 || [ 86399 // -181° ]
1607024668 => 19:44:28 03.12.2020 || [ 86400 // -181° ]
1606938194 => 19:43:14 02.12.2020 || [ 86401 // -181° ]

1607197372 => 19:42:52 05.12.2020 || [ -86401 // -180° ]
1607197372 => 19:42:52 05.12.2020 || [ -86400 // -180° ]
1607110901 => 19:41:41 04.12.2020 || [ -86399 // -180° ]
1607110901 => 19:41:41 04.12.2020 || [ -1 // -180° ]
1607110901 => 19:41:41 04.12.2020 || [ 0 // -180° ]
1607024428 => 19:40:28 03.12.2020 || [ 1 // -180° ]
1607024428 => 19:40:28 03.12.2020 || [ 86399 // -180° ]
1607024428 => 19:40:28 03.12.2020 || [ 86400 // -180° ]
1606937953 => 19:39:13 02.12.2020 || [ 86401 // -180° ]

1607154137 => 07:42:17 05.12.2020 || [ -86401 // 0° ]
1607154137 => 07:42:17 05.12.2020 || [ -86400 // 0° ]
1607067665 => 07:41:05 04.12.2020 || [ -86399 // 0° ]
1607067665 => 07:41:05 04.12.2020 || [ -1 // 0° ]
1607067665 => 07:41:05 04.12.2020 || [ 0 // 0° ]
1606981191 => 07:39:51 03.12.2020 || [ 1 // 0° ]
1606981191 => 07:39:51 03.12.2020 || [ 86399 // 0° ]
1606981191 => 07:39:51 03.12.2020 || [ 86400 // 0° ]
1606894715 => 07:38:35 02.12.2020 || [ 86401 // 0° ]

1607197301 => 19:41:41 05.12.2020 || [ -86401 // 180° ]
1607197301 => 19:41:41 05.12.2020 || [ -86400 // 180° ]
1607110828 => 19:40:28 04.12.2020 || [ -86399 // 180° ]
1607110828 => 19:40:28 04.12.2020 || [ -1 // 180° ]
1607110828 => 19:40:28 04.12.2020 || [ 0 // 180° ]
1607024353 => 19:39:13 03.12.2020 || [ 1 // 180° ]
1607024353 => 19:39:13 03.12.2020 || [ 86399 // 180° ]
1607024353 => 19:39:13 03.12.2020 || [ 86400 // 180° ]
1606937877 => 19:37:57 02.12.2020 || [ 86401 // 180° ]

1607154065 => 07:41:05 05.12.2020 || [ -86401 // 360° ]
1607154065 => 07:41:05 05.12.2020 || [ -86400 // 360° ]
1607067591 => 07:39:51 04.12.2020 || [ -86399 // 360° ]
1607067591 => 07:39:51 04.12.2020 || [ -1 // 360° ]
1607067591 => 07:39:51 04.12.2020 || [ 0 // 360° ]
1606981115 => 07:38:35 03.12.2020 || [ 1 // 360° ]
1606981115 => 07:38:35 03.12.2020 || [ 86399 // 360° ]
1606981115 => 07:38:35 03.12.2020 || [ 86400 // 360° ]
1606894638 => 07:37:18 02.12.2020 || [ 86401 // 360° ]

*/
?>
To Top