- date: documentation ( source)
- strtotime: documentation ( source)
<?php
$data[12] = '2013-09-09 09:36:01';
if(DateTime::createFromFormat('d-m-y', $data[12])){
$data[12] = DateTime::createFromFormat('m-d-y', $data[12])->format('Y-m-d');
}else{
$data[12] = date('Y-m-d',strtotime($data[12]));
}
echo $data[12];