Php 显示半小时范围内的小时数

我正在编写一个约会脚本，该脚本从数据库中获取办公室的开始和结束时间，然后显示要预订会议的开始和结束时间之间的时间，每次会议只能预订半个小时，因此我需要使用单选按钮显示这样的计时

9:00am  - 9:30am
9:30am  - 10:00am
10:00am - 10:30am
...
...
...

9:00am  - 9:30am
9:30am  - 10:00am
10:00am - 10:30am
...
...
...

我能够计算办公室开放的总小时数，并使用for循环显示计时

$office_start_time = '09:00:00';
$office_end_time = '16:00:00';

$start = explode(':', $office_start_time);
$end = explode(':', $office_end_time);
$total_hours = $end[0] - $start[0] - ($end[1] < $start[1]);
echo 'total hours: '.$total_hours;
echo '<br>';
//exit;
?>
<table class="table table-hover table-bordered">
    <tbody>
    <?php for ($i = 0; $i < $total_hours; $i++) {
        echo "<input name='time' type='radio' value='09:00|09:30'> 9:00am-9:30am<br/>";
        ?>

    <?php } ?>
    </tbody>
</table>

Strotime的魔法可以做到这一点

$start = '09:00:00';
$end = '16:00:00';
$time = strtotime($start);
$timeStop = strtotime($end);

while($time<$timeStop) {
    echo date('H:i', $time);
    $time = strtotime('+30 minutes', $time);
    echo ' - ' . date('H:i', $time) . '<br/>';
}

Strotime的魔法可以做到这一点

$start = '09:00:00';
$end = '16:00:00';
$time = strtotime($start);
$timeStop = strtotime($end);

while($time<$timeStop) {
    echo date('H:i', $time);
    $time = strtotime('+30 minutes', $time);
    echo ' - ' . date('H:i', $time) . '<br/>';
}

怎么样

<?php
    for ($i = 0; $i < $total_hours; $i++)
    {
        $time = $start[0] + $i;
        echo "<input name='time' type='radio' value='0" . $time . ":00|0" . $time . ":30'> " . $time . ":00am-" . $time . ":30am<br/>";
    }
?>

怎么样

<?php
    for ($i = 0; $i < $total_hours; $i++)
    {
        $time = $start[0] + $i;
        echo "<input name='time' type='radio' value='0" . $time . ":00|0" . $time . ":30'> " . $time . ":00am-" . $time . ":30am<br/>";
    }
?>

---

使用DateTime是一种方法。使用DateTime是一种方法。