(PHP ActiveX) 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.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

$ulid = '01GRH14AA82EY9A7S99YYF2QDY';

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.CkDateTime')
$dt = new COM("Chilkat.CkDateTime");

// Unix timestamps stored in ULIDs should be UTC...
$bLocal = 0;
// Set the CkDateTime from the timestamp contained in the ULID
$success = $dt->SetFromUlid($bLocal,$ulid);
if ($success == 0) {
    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

?>