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date_sun_info

(PHP 5 >= 5.1.2, PHP 7)

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

array date_sun_info ( int $time , float $latitude , float $longitude )

Liste de paramètres

time

Timestamp.

latitude

Latitude, en degrés.

longitude

Longitude, en degrés.

Valeurs de retour

Retourne un tableau en cas de succès ou FALSE si une erreur survient.

Exemples

Exemple #1 Exemple avec date_sun_info()

<?php
$sun_info 
date_sun_info(strtotime("2006-12-12"), 31.766735.2333);
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

Voir aussi

  • date_sunrise() - Retourne l'heure de lever du soleil pour un jour et un endroit donnés
  • date_sunset() - Retourne l'heure de coucher du soleil pour un jour et un endroit donnés

add a note add a note

User Contributed Notes 2 notes

up
2
ELY M.
7 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
mother at localsnow dot com
7 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]

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