PHP

Date/Time Expires Within N Seconds/Minutes/Hours/Days

Demonstrates the how to tell if a date/time is within N seconds, minutes, hours, or days of the current system time. Chilkat2 PHP

<?php

use Chilkat2\DateTime;

$dt = new DateTime();

// Set to the current system date/time.
$dt->SetFromCurrentSystemTime();
echo 'Now: ', $dt->GetAsTimestamp(true), "\n";

// Add 10 minutes, making the date 10 minutes in the future.
$dt->AddSeconds(600);
echo '10 minutes from now: ', $dt->GetAsTimestamp(true), "\n";

// Is the date/time within 10 seconds of expiration (i.e. within 10 seconds of now)?
$b = $dt->ExpiresWithin(10, 'seconds');
echo 'Expires within 10 seconds: ', ($b ? 'true' : 'false'), "\n";

// Does the date/time expire within 5 minutes?
$b = $dt->ExpiresWithin(5, 'minutes');
echo 'Expires within 5 minutes: ', ($b ? 'true' : 'false'), "\n";

// Does the date/time expire within 15 minutes?
$b = $dt->ExpiresWithin(15, 'minutes');
echo 'Expires within 15 minutes: ', ($b ? 'true' : 'false'), "\n";

// Does the date/time expire within 1 hour?
$b = $dt->ExpiresWithin(1, 'hour');
echo 'Expires within 1 hour: ', ($b ? 'true' : 'false'), "\n";

// Does the date/time expire within 1 day?
$b = $dt->ExpiresWithin(1, 'day');
echo 'Expires within 1 day: ', ($b ? 'true' : 'false'), "\n";

// Output:

//     Now: 2017-05-05T23:48:00-0500
//     10 minutes from now: 2017-05-05T23:58:00-0500
//     Expires within 10 seconds: False
//     Expires within 5 minutes: False
//     Expires within 15 minutes: True
//     Expires within 1 hour: True
//     Expires within 1 day: True