<?php

include 'exe4.php';
displayHeader('Heading h1', 'Sub Heading h2');
$comment = array([0], [1], [2], [3]);
$comment[0] = createComment('Ramasubbaiya', 'Awesome Program!', strtotime('30-07-2014 06:30:55 AM'));
$comment[1] = createComment('Ramasubbaiya', 'Awesome Program!', strtotime('04-03-2014 06:30:55 PM'));
$comment[2] = createComment('Ramasubbaiya', 'Awesome Program!', strtotime('23-12-2014 06:30:55 AM'));
$comment[3] = createComment('Ramasubbaiya', 'Awesome Program!', strtotime('07-04-2010 06:30:55 PM'));
foreach ($comment as $k => $v) {
    outputComment($v) . '<br>';
}
<?php

include "exe3.php";
function outputComment($output)
{
    $arr = createComment('Ram', 'Awesome Program!', '6:30');
    echo 'Name : ' . $arr[0] . '<br>';
    echo 'Comment : ' . $arr[1] . '<br>';
    echo 'Time : ' . $arr[2] . '<br>';
}
outputComment($output);
$time1 = new time('07:08:00');
$time2 = new time();
$interval = $time1->diff($time2);
echo $interval->format('%R%a days');
<?php

include 'util.php';
saveComment("Rama", 'Awesome Program!', strtotime('2015/08/05 06:40:00'));
saveComment("Leo", 'Awesome Program!', strtotime('2012/12/11 07:50:00'));
saveComment("Matt", 'Awesome Program!', strtotime('2010/11/12 08:35:00'));
saveComment("Nike", 'Awesome Program!', strtotime('2012/06/05 09:25:00'));
//echo $saveComment();
$comments = loadComment();
foreach ($comments as $key => $val) {
    outputComment($val);
}