[php] How do you convert between 12 hour time and 24 hour time in PHP?

// 24-hour time to 12-hour time 
$time_in_12_hour_format  = date("g:i a", strtotime("13:30"));

// 12-hour time to 24-hour time 
$time_in_24_hour_format  = date("H:i", strtotime("1:30 PM"));

Examples related to php

• I am receiving warning in Facebook Application using PHP SDK • Pass PDO prepared statement to variables • Parse error: syntax error, unexpected [ • Preg_match backtrack error • Removing "http://" from a string • How do I hide the PHP explode delimiter from submitted form results? • Problems with installation of Google App Engine SDK for php in OS X • Laravel 4 with Sentry 2 add user to a group on Registration • php & mysql query not echoing in html with tags? • How do I show a message in the foreach loop?