<?php

function getMyDate($dateString)
{
	$dateString = str_replace('/', '-', $dateString);
	$date = new DateTime($dateString);
	return $date->format('d/m/Y');
}

//----------------------------
$var = '13/02/2014 ';
echo getMyDate($var);

$var = '2014-02-07';
echo getMyDate($var);

// your code goes here