Showing arrays, need help

[Jens14]

function date_diff($str_start, $str_end)
{

$str_start = strtotime($str_start);
$str_end = strtotime($str_end);

$nseconds = $str_end - $str_start;
$ndays = round($nseconds / 86400);
$nseconds = $nseconds % 86400;
$nhours = round($nseconds / 3600);
$nseconds = $nseconds % 3600;
$nminutes = round($nseconds / 60);
$nseconds = $nseconds % 60;

if ($ndays == 0)
if($nhours == 0)
if($nminutes == 0)
return array($nseconds);
else
return array($nminutes, $nseconds);
else
return array($nhours, $nminutes, $nseconds);
else
return array($ndays, $nhours, $nminutes, $nseconds);

}

date_diff("2007/03/16 12:30:50", "2007/03/16 14:00:00");

This is a function that compares two dates with each other and let's see how much there is left in seconds, minutes, hours, days.

I didn't know at all how to do the arrays but a friend gave me if else and return array stuff, the purpose is that first if for example the days and hours are 0 it only shows the minutes and seconds.

Can anyone tell me if I'm ussing the array's wrong or/and how i get the output from these?

Thanks, Jens.

[leatherback]

Return => Gives something back from the function to the script calling the function. It wil NOT display anything (Use echo for display).

Your if/else statement are in deer need of brackets. Put the sections of code for which the if's and else's are valid between { and }

[Installer]

That function will give you wrong data at least half the time (hint: round() can go up as well as down).

And the return array is a mess. In some cases seconds will be at array index 3, in others 2, in others 1, and in yet others 0; minutes can be at index 2, 1, or 0; hours at 1 or 0. The code to handle return data like that will end up resembling a train wreck.

Try this:

function date_diff($str_start, $str_end)
{
    $nseconds = strtotime($str_start) - strtotime($str_end);
    $arr['days'] = intval($nseconds / 86400);
    $nseconds = $nseconds % 86400;
    $arr['hours'] = intval($nseconds / 3600);
    $nseconds = $nseconds % 3600;
    $arr['minutes'] = intval($nseconds / 60);
    $arr['seconds'] = intval($nseconds % 60);
    return $arr;
}

$diff = date_diff("2007/03/16 12:30:50", "2007/03/16 14:00:00");
foreach ($diff as $key => $time) {
    echo $time . ' ' . $key . ' ';
}