mysqli count down

1//CALCULATES SECONDS UNTIL THE EVENT
2$remaining = strtotime($date['date']) - $today;

1<?php 
2include("php/db_connect.php");
3
4//TODAY'S DATE
5$today = time();
6
7//FETCHES DATE AND TIME FOR THE EVENT FROM DATABASE
8$sql = "SELECT * FROM countdown";
9
10$result = mysql_query($sql) or die(mysql_error());
11
12$date = mysql_fetch_array( $result );
13
14
15//CALCULATES SECONDS UNTIL THE EVENT
16$remaining = $date['date'] - $today;
17
18//CALCULATE DAYS UNTIL THE EVENT
19$days_remaining = floor($remaining / 86400);
20
21echo "<div class='countdown'> $days_remaining days until event</div>";
22
23?>

1//CALCULATES SECONDS UNTIL THE EVENT
2$remaining = $date['date'] - $today;