Usage:
Cch::getPostalCode('Arauco', 5440, 'La Serena');
The order of the parameters is: Street, Numbering and City.
Install with composer:
composer require jmenast/cch-postalcode
For Laravel 5.7.x usage:
Add to config/app.php next alias.
'Cch' => CchPostalcode\Cch::class
And execute composer dump-autoload.