php - How to make dynamic time in select box with 5 minutes interval? -

i need dynamic time select box 5 minutes interval in php. me?

<select name="time" id="time">  <option value="5:00 am">5:00 am</option>  <option value="5:05 am">5:05 am</option>  <option value="5:10 am">5:10 am</option>  .  .  .  .  <option value="23:55 am">23:55 am</option> </select> 

with datetime:

$datetime = new datetime('5:00 am');  for($i=0; $i <= 515; $i++) {     echo $datetime->format('h:i a'), "\n";     // add 5 minutes     $datetime->modify('+5 minutes'); } 

you can use modify add how many minutes want.