循环内增加时间15分钟

Question

I want to create a dropdown that will take current time as start time and will end up till 24 hours, like till coming 24 hours so in between it will show time of every 15 minutes increment. The problem is that when I try to run the loop starting time is okay but with next loop the time jumps to 6 hours behind.

Here is my code:

$current_time = date('h:i A');
$end_hour     = date("+24 hours", $current_time);

echo "<option>" . $current_time . "</option>";  
for($i = 0; $i <= 96; $i++) {
    echo "<option>" . date("h:i A", $tNow) . "</option>";
    $tNow = strtotime('+15 minutes',$current_time);
}   

Output coming as 11:08 PM 4:00 PM 4:15 PM 4:30 PM

And so on.

Answer 1

You can use DateTime for that:

$now = new DateTime();
$end = clone $now;
$end->modify("+24 hours");

while ($now <= $end) {
    echo "<option>" . $now->format('h:i A'). "</option>";
    $now->modify('+15 minutes');
}