Question

I am using a bit of PHP right now to output how many days, hours, minutes and seconds are left until a specific date. It works great, but as of right now, it will output something like: 14:5:33:36

Ideally, if it’s less than 10 I’d like it to output 05 instead of just 5. I know this must be fairly simple in PHP, but being a front end developer… I just can’t quite wrap my brain around this. Below is the code I’m currently using:

<?
    $rem = strtotime('2013-02-01 14:00:00') - time();
    $day = floor($rem / 86400);
    $hr  = floor(($rem % 86400) / 3600);
    $min = floor(($rem % 3600) / 60);
    $sec = ($rem % 60);
    if($day)
        echo "$day:";
    if($hr)
        echo "$hr:";
    if($min)
        echo "$min:";
    if($sec)
        echo "$sec";
?>

How can this be accomplished?

Answer 1

You can use str_pad with the STR_PAD_LEFT flag.

$num = 5;
echo str_pad($num, 2, "0", STR_PAD_LEFT);