gmp_init

<?php         $model = CustomCasts::create([

            'address' => new AddressModel('address_line_one_value', 'address_line_two_value'),

            'amount' => gmp_init('1000', 10),

            'string_field' => null,

        ]);

<?php         $another_model = CustomCasts::create([

            'address_line_one' => 'address_line_one_value',

            'address_line_two' => 'address_line_two_value',

            'amount' => gmp_init('500', 10),

            'string_field' => 'string_value',

        ]);

<?php         $model = CustomCasts::create([

            'address' => new AddressModel('address_line_one_value', 'address_line_two_value'),

            'amount' => gmp_init('1000', 10),

            'string_field' => 'string_value',

        ]);

<?php         $model = CustomCasts::create([

            'address' => new AddressModel('address_line_one_value', 'address_line_two_value'),

            'amount' => gmp_init('1000', 10),

            'string_field' => 'string_value',

        ]);

<?php         $model = CustomCasts::create([

            'address' => new AddressModel('address_line_one_value', 'address_line_two_value'),

            'amount' => gmp_init('1000', 10),

            'string_field' => 'string_value',

        ]);

<?php     public function get($model, $key, $value, $attributes)

    {

        return gmp_init($value, 10);

    }