A CUID (Collision Resistant Unique Identifier) is a method of creating a unique identifier that was developed by Eric Elliott. The purpose is to create unique IDs for use in web applications to better support horizontal scaling and sequential lookup performance.

Install

composer require calicastle/cuid

Example Usages

use CaliCastle\Cuid;

Cuid::make(); // ckbe1q3gi000001jsfnm9cm81
Cuid::make('u'); // ukbe1qos1000201js74bwas75

Laravel Eloquent

use CaliCastle\Concerns\HasCuid;

// Each user will have an id of something 
// like "ukbe1q3gi000001jsfnm9cm81"
class User extends Model 
{
   use HasCuid;

   /**
    * Get the CUID prefix.
    */
   public static function getCuidPrefix(): string
   {
       return 'u';
   }
}