舍入到PHP中最近的可用时隙

Question

我一直在努力工作一个小时左右,并且空白了.基本上我需要花费当前时间,增加30分钟,然后向下舍入到接下来的15分钟.

例子:

• 如果它现在是20:00,结果= 20:45
• 如果它现在是20:10,结果= 20:45
• 如果它现在是20:16,结果= 21:00
• 如果它现在是20:35,结果= 21:15

我的PHP生疏了,我一直在混淆日期添加和圆形方法试图让它工作,我知道它很简单 - 刚刚用完了想法!

谢谢

Answer 1

我还要添加一个解决方案:

<?php

date_default_timezone_set('America/Los_Angeles');

$times = array();
$times[] = strtotime('00:07');
$times[] = strtotime('04:21');
$times[] = strtotime('20:00');
$times[] = strtotime('20:10');
$times[] = strtotime('20:16');
$times[] = strtotime('20:35');
$times[] = strtotime('23:15');


foreach($times as $time) {
    echo date('m-d-Y H:i', $time) . ' becomes ' . date('m-d-Y H:i:s', roundToNearestInterval($time)) . "<br />\n";
}


function roundToNearestInterval($timestamp)
{
    $timestamp += 60 * 30;
    list($m, $d, $y, $h, $i, $s) = explode(' ', date('m d Y H i s', $timestamp));
    if ($s != 0) $s = 0;

    if ($i < 15) {
        $i = 15;
    } else if ($i < 30) {
        $i = 30;
    } else if ($i < 45) {
        $i = 45;
    } else if ($i < 60) {
        $i = 0;
        $h++;
    }

    return mktime($h, $i, $s, $m, $d, $y);
}

产量:

03-01-2012 00:07 becomes 03-01-2012 00:45:00
03-01-2012 04:21 becomes 03-01-2012 05:00:00
03-01-2012 20:00 becomes 03-01-2012 20:45:00
03-01-2012 20:10 becomes 03-01-2012 20:45:00
03-01-2012 20:16 becomes 03-01-2012 21:00:00
03-01-2012 20:35 becomes 03-01-2012 21:15:00
03-01-2012 23:15 becomes 03-02-2012 00:00:00