PHP date_sun_info() 函数

定义和用法

date_sun_info() 函数接受地点的时间、纬度和经度，并提供有关给定地点的日出/日落以及黄昏的开始/结束时间的信息。

语法

date_sun_info( $timestamp,$ latitude, $longitude)

参数

序号	参数与描述
1	$timestamp（必填）这个参数指定了一个时间戳。
2	$latitude（必填）这个参数指定了一个位置的纬度。
3	$longitude（必填）这个参数指定了一个位置的经度。

返回值

PHP的date_sun_info()函数返回一个数组，包含指定位置给定日期的日出/日落以及黄昏的开始/结束的信息。

PHP版本

此函数在PHP 5.2.0版本中首次引入，适用于所有后续版本。

示例

以下示例演示了date_sun_info()函数的用法：

<?php
    $sun_info = date_sun_info("02-17-2012", 20.5937, 78.9629); print_r($ sun_info);
?>

这将产生以下结果 −

Array
(
    [sunrise] => 4818
    [sunset] => 44087
    [transit] => 24453
    [civil_twilight_begin] => 3381
    [civil_twilight_end] => 45524
    [nautical_twilight_begin] => 1729
    [nautical_twilight_end] => 47176
    [astronomical_twilight_begin] => 98
    [astronomical_twilight_end] => 48807
)

示例

以下示例获取不同地点的同一日期的信息−

<?php
    $sun_info = date_sun_info("02-17-2012", 37.0902, 95.7129); print_r($ sun_info);
?>

这将产生如下结果−

Array
(
    [sunrise] => 3038
    [sunset] => 37825
    [transit] => 20431
    [civil_twilight_begin] => 1307
    [civil_twilight_end] => 39556
    [nautical_twilight_begin] => -642
    [nautical_twilight_end] => 41505
    [astronomical_twilight_begin] => -2538
    [astronomical_twilight_end] => 43402
)

示例

以下示例在不同的日期获取位置的信息-

<?php
    $time = "2000-01-01";$ latitude = 31.7667;
    $longitude = 35.2333; print_r(date_sun_info($ time,  $latitude,$ longitude));
    $time = "2010-01-01"; print_r(date_sun_info($ time,  $latitude,$ longitude));   
    $time = "2020-01-01"; print_r(date_sun_info($ time,  $latitude,$ longitude));
?>

这将产生以下结果 −

Array
(
    [sunrise] => 16742
    [sunset] => 53161
    [transit] => 34951
    [civil_twilight_begin] => 15138
    [civil_twilight_end] => 54765
    [nautical_twilight_begin] => 13316
    [nautical_twilight_end] => 56587
    [astronomical_twilight_begin] => 11534
    [astronomical_twilight_end] => 58369
)
Array
(
    [sunrise] => 16742
    [sunset] => 53161
    [transit] => 34951
    [civil_twilight_begin] => 15138
    [civil_twilight_end] => 54765
    [nautical_twilight_begin] => 13316
    [nautical_twilight_end] => 56587
    [astronomical_twilight_begin] => 11534
    [astronomical_twilight_end] => 58369
)
Array
(
    [sunrise] => 16742
    [sunset] => 53161
    [transit] => 34951
    [civil_twilight_begin] => 15138
    [civil_twilight_end] => 54765
    [nautical_twilight_begin] => 13316
    [nautical_twilight_end] => 56587
    [astronomical_twilight_begin] => 11534
    [astronomical_twilight_end] => 58369
)

示例

<?php
    $sun_info = date_sun_info(strtotime("2017-07-12"), 20.5937, 78.9629); foreach ($ sun_info as  $key =>$ val) {
      echo " $key: " . date("H:i:s",$ val) . "\n";
   }
?>

这将产生以下结果 –

sunrise: 00:11:03
sunset: 13:28:33
transit: 06:49:48
civil_twilight_begin: 23:46:45
civil_twilight_end: 13:52:51
nautical_twilight_begin: 23:17:48
nautical_twilight_end: 14:21:47
astronomical_twilight_begin: 22:47:55
astronomical_twilight_end: 14:51:41