PHP 日期函数 date_create()

<?php
   $dateSrc = '2007-04-19 12:50 GMT';
   $dateTime = new DateTime($dateSrc);

   echo 'DateTime::format(): '.$dateTime->format('H:i:s');
   echo "\n";

   $dateSrc = '2007-04-19 12:50 GMT';
   $dateTime = date_create($dateSrc);
   echo 'DateTime::format(): '.$dateTime->format('H:i:s');
?>