Code to test how to use affixes with the Keygen package.

keygen-affixes-test.php

<?php

require __DIR__ . '/vendor/autoload.php';
use Keygen\Keygen;

// Prefix (inclusive enabled)
echo Keygen::numeric(12)->prefix('TM-')->generate(); // e.g TM-218624395

// Prefix (inclusive disabled)
echo Keygen::numeric(12)->prefix('TM-')->generate(true); // e.g TM-382104609735

// Suffix (inclusive enabled)
echo Keygen::alphanum(20)->suffix('.me')->generate(); // e.g 5UpwTe7cl268s31c9.me

// Suffix (inclusive disabled)
echo Keygen::alphanum(20)->suffix('.me')->generate(true); // e.g X1QkHm5OAI9q3F3VxNv8.me

// Combined (inclusive enabled)
echo Keygen::numeric(15)->prefix('TM-')->suffix('.me')->generate(); // e.g TM-101636457.me