PHP

Extract Timestamp from ULID

See more ULID/UUID Examples

Extract the date/time from a ULID.

Important: Chilkat's ULID functionality was introduced in v9.5.0.94.

Chilkat2 PHP

<?php

use Chilkat2\DateTime;

$ulid = '01GRH14AA82EY9A7S99YYF2QDY';

$dt = new DateTime();

// Unix timestamps stored in ULIDs should be UTC...
$bLocal = false;
// Set the CkDateTime from the timestamp contained in the ULID
try {
    $dt->SetFromUlid($bLocal, $ulid);
} catch (\Chilkat2\Exception $e) {
    echo "ULID was not valid.\n";
    exit;
}

// You can now get the date/time in any desired format.
// For example:
echo 'Unix timestamp = ', $dt->GetAsUnixTime($bLocal), "\n";
echo 'RFC822 = ', $dt->GetAsRfc822($bLocal), "\n";
echo 'Timestamp = ', $dt->GetAsTimestamp($bLocal), "\n";

// Sample output:

// Unix timestamp = 1675608861
// RFC822 = Sun, 05 Feb 2023 14:54:21 GMT
// Timestamp = 2023-02-05T14:54:21Z