[PHP] 從陣列抓出Datetime格式

<?php

$data = array (
  '2016-11-02 14:30:00 Mary is a girl.',
  'Hello 2016-11-14 14:30:00Mary.',
  'Mark 2016-11-02 14:30:00is a boy ',
  'Hello Mark'
);

$matches = array ();
foreach ($data as $str) 
  if (preg_match ('/(\d{4})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2})/i', $str, $m))
    $matches[] = $m[0];


var_dump($matches);