(PHP Extension) Validate a ULID

See more ULID/UUID Examples

Checks to see if a ULID is valid.

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");

$dt = new CkDateTime();

// A ULID must be exactly 26 chars in length,
// and is composed of the following chars: 0123456789ABCDEFGHJKMNPQRSTVWXYZ
// Note: The ULID alphabet excludes the letters I, L, O, and U

// Here's a valid ULID
$ulid = '01GRGCH4J88RECEN4D4VK4F629';
$valid = $dt->UlidValidate($ulid);
print 'valid: ' . $valid . "\n";

// Here's an invalid ULID
$ulid = '71GRGxx4Jr8RECEN4D4VK4F62!';
$valid = $dt->UlidValidate($ulid);
print 'valid: ' . $valid . "\n";

?>