Subtracting Time From Time - Help

[matt0268]

<?php
$channel = "mattbenson";
$json_file = @file_get_contents("http://api.justin.tv/api/stream/list.json?channel={$channel}", 0, null, null);
$json_array = json_decode($json_file, true);

if( array_key_exists( '0', $json_array )
&& array_key_exists( 'channel', $json_array[0] )
&& $json_array[0]['name'] == "live_user_{$channel}" )
{
$channelTitle = $json_array[0]['channel']['title'];
$title = $json_array[0]['channel']['status'];
$viewers = $json_array[0]['channel_count'];
$uptime = $json_array[0]['up_time'];
$today = date("D M j d:i:s Y");
$uptime1 = ($today - $uptime);

printf('Online');

printf ($uptime1);

print "<br>";
print "date <--- ";
printf ($today);
print "<br>";
print "uptime <--- ";
printf ($uptime);
}
else
{
printf('Offline');
}

?>

 

It displays like this

Online0

date <--- Sat Oct 6 06:34:51 2012

uptime <--- Sat Oct 6 06:15:44 2012

 

 

Problem is it doesn't subtract is just displays 0

 

Anyhelp?

Edited October 6, 2012 by matt0268

[scootstah]

Use strtotime to get the UNIX timestamp of both dates, and then do the subtraction, and then use date again.

Edited October 6, 2012 by scootstah

[matt0268]

Use strftime to get the UNIX timestamp of both dates, and then do the subtraction, and then use date again.

 

Thanks for the response, i'm confused on how i can get the strftime from both dates? I'm using an API to get the date from one. If you could help me out i would appreciate it!

[scootstah]

Oops, I meant to say strtotime. Sorry about that.