PHP

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.

Chilkat2 PHP

<?php

use Chilkat2\DateTime;

$dt = new DateTime();

// 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';
try {
    $dt->UlidValidate($ulid);
    $valid = true;
} catch (\Chilkat2\Exception $e) {
    $valid = false;
}
echo 'valid: ', ($valid ? 'true' : 'false'), "\n";

// Here's an invalid ULID
$ulid = '71GRGxx4Jr8RECEN4D4VK4F62!';
try {
    $dt->UlidValidate($ulid);
    $valid = true;
} catch (\Chilkat2\Exception $e) {
    $valid = false;
}
echo 'valid: ', ($valid ? 'true' : 'false'), "\n";