php 如何以半小时为间隔制作一系列时间?
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How can I make an array of times with half hour intervals?
提问by alex
I needed a list of times like so in an array...
我需要一个数组中的时间列表......
12am
12:30am
1:00pm
...
How can I do this with PHP?
我怎样才能用 PHP 做到这一点?
采纳答案by erisco
Thank-you for reopening the question alex.
感谢您重新打开问题亚历克斯。
This is a solution that should resonate with functional programmers.
这是一个应该引起函数式程序员共鸣的解决方案。
function halfHourTimes() {
$formatter = function ($time) {
if ($time % 3600 == 0) {
return date('ga', $time);
} else {
return date('g:ia', $time);
}
};
$halfHourSteps = range(0, 47*1800, 1800);
return array_map($formatter, $halfHourSteps);
}
回答by rjb
Here's an improved version of Alex's functionthat uses seconds for more precision:
这是Alex 函数的改进版本,它使用秒来提高精度:
function hoursRange( $lower = 0, $upper = 86400, $step = 3600, $format = '' ) {
$times = array();
if ( empty( $format ) ) {
$format = 'g:i a';
}
foreach ( range( $lower, $upper, $step ) as $increment ) {
$increment = gmdate( 'H:i', $increment );
list( $hour, $minutes ) = explode( ':', $increment );
$date = new DateTime( $hour . ':' . $minutes );
$times[(string) $increment] = $date->format( $format );
}
return $times;
}
So, to make an array of times with 1-hour intervals over a 24-hour time period, use the defaults:
因此,要在 24 小时时间段内以 1 小时为间隔制作时间数组,请使用默认值:
hoursRange();
Which will give you the following:
这将为您提供以下信息:
Array
(
[00:00] => 12:00 am
[01:00] => 1:00 am
[02:00] => 2:00 am
[03:00] => 3:00 am
[04:00] => 4:00 am
[05:00] => 5:00 am
[06:00] => 6:00 am
[07:00] => 7:00 am
[08:00] => 8:00 am
[09:00] => 9:00 am
[10:00] => 10:00 am
[11:00] => 11:00 am
[12:00] => 12:00 pm
[13:00] => 1:00 pm
[14:00] => 2:00 pm
[15:00] => 3:00 pm
[16:00] => 4:00 pm
[17:00] => 5:00 pm
[18:00] => 6:00 pm
[19:00] => 7:00 pm
[20:00] => 8:00 pm
[21:00] => 9:00 pm
[22:00] => 10:00 pm
[23:00] => 11:00 pm
)
Here are a few example uses:
以下是一些示例用途:
// Every 15 Minutes, All Day Long
$range = hoursRange( 0, 86400, 60 * 15 );
// Every 30 Minutes from 8 AM - 5 PM, using Custom Time Format
$range = hoursRange( 28800, 61200, 60 * 30, 'h:i a' );
You can view a working snippet at CodePad.
回答by alex
I decided this one was better :)
我决定这个更好:)
function hoursRange($lower = 0, $upper = 23, $step = 1, $format = NULL) {
if ($format === NULL) {
$format = 'g:ia'; // 9:30pm
}
$times = array();
foreach(range($lower, $upper, $step) as $increment) {
$increment = number_format($increment, 2);
list($hour, $minutes) = explode('.', $increment);
$date = new DateTime($hour . ':' . $minutes * .6);
$times[(string) $increment] = $date->format($format);
}
return $times;
}
回答by Kalim
Simplest solution
最简单的解决方案
$h = 0;
while ($h < 24) {
$key = date('H:i', strtotime(date('Y-m-d') . ' + ' . $h . ' hours'));
$value = date('h:i A', strtotime(date('Y-m-d') . ' + ' . $h . ' hours'));
$formatter[$key] = $value;
$h++;
}
Result are:
结果是:
Array
(
[00:00] => 12:00 AM
[01:00] => 01:00 AM
[02:00] => 02:00 AM
[03:00] => 03:00 AM
[04:00] => 04:00 AM
[05:00] => 05:00 AM
[06:00] => 06:00 AM
[07:00] => 07:00 AM
[08:00] => 08:00 AM
[09:00] => 09:00 AM
[10:00] => 10:00 AM
[11:00] => 11:00 AM
[12:00] => 12:00 PM
[13:00] => 01:00 PM
[14:00] => 02:00 PM
[15:00] => 03:00 PM
[16:00] => 04:00 PM
[17:00] => 05:00 PM
[18:00] => 06:00 PM
[19:00] => 07:00 PM
[20:00] => 08:00 PM
[21:00] => 09:00 PM
[22:00] => 10:00 PM
[23:00] => 11:00 PM
)
回答by Lano
Here is my suggestion :
这是我的建议:
$start = new \DateTime('00:00');
$times = 24 * 2; // 24 hours * 30 mins in an hour
for ($i = 0; $i < $times-1; $i++) {
$result[] = $start->add(new \DateInterval('PT30M'))->format('H:i A');
}
print_r($result);
Hope this help.
希望这有帮助。
回答by JS Morisset
Here's a more flexible version that doesn't need DateTime (since we're already working with timestamps in seconds anyway). ;-)
这是一个不需要 DateTime 的更灵活的版本(因为我们已经在以秒为单位处理时间戳)。;-)
function get_hours_range( $start = 0, $end = 86400, $step = 3600, $format = 'g:i a' ) {
$times = array();
foreach ( range( $start, $end, $step ) as $timestamp ) {
$hour_mins = gmdate( 'H:i', $timestamp );
if ( ! empty( $format ) )
$times[$hour_mins] = gmdate( $format, $timestamp );
else $times[$hour_mins] = $hour_mins;
}
return $times;
}
回答by Matěj G.
This is maybe a more elegant way, but it requires the times to be in seconds (that also makes it more flexible).
这可能是一种更优雅的方式,但它要求时间以秒为单位(这也使其更加灵活)。
function time_range( $start, $end, $step = 1800 ) {
$return = array();
for( $time = $start; $time <= $end; $time += $step )
$return[] = date( 'g:ia', $time );
return $return;
}