string - How to convert the time from AM/PM to 24 hour format in PHP?

Question

For example, I have a time in this format:

eg. 

09:15 AM
04:25 PM
11:25 AM

How do I convert it to :

09:15
16:25
23:25

Currently my code is :

$format_time = str_replace(" AM", "", $time, $count);
if ($count === 0){
    $format_time = strstr($time, ' PM', true);
    $format_time = ......
}

However, it seems there are some easier and more elegant way to do this?

$time = '23:45'; 
echo date('g:i a', strtotime($time)); 

How do I fit the above sample in my case? Thanks.

Answer 1

Try with this

echo date("G:i", strtotime($time));

or you can try like this also

echo date("H:i", strtotime("04:25 PM"));