(PHP Extension) 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.

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<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

$ulid = '01GRH14AA82EY9A7S99YYF2QDY';

$dt = new CkDateTime();

// Unix timestamps stored in ULIDs should be UTC...
$bLocal = false;
// Set the CkDateTime from the timestamp contained in the ULID
$success = $dt->SetFromUlid($bLocal,$ulid);
if ($success == false) {
    print 'ULID was not valid.' . "\n";
    exit;
}

// You can now get the date/time in any desired format.
// For example:
print 'Unix timestamp = ' . $dt->GetAsUnixTime($bLocal) . "\n";
print 'RFC822 = ' . $dt->getAsRfc822($bLocal) . "\n";
print '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

?>