generate_code_example.php

if (empty($this->code)) {

            $options = [
                'length' => 10,
                'prefix' => 'GCC',
                'letters' => true,
                'numbers' => true,
                'mask' => '-XXXXXXX-XXX'
            ];

            $code = GCCodeGenerator::generate($options);
            $gc = GiftCard::where('code', $code)->first();

            while($gc)
            {
                $code = GCCodeGenerator::generate(10, $options);
                $gc = GiftCard::where('code', $code)->first();
            }

            $this->times_used = 0;
            $this->code = $code;
        }