use BUBB\Correios\CorreiosQuote;
use BUBB\Correios\Exceptions\CorreiosQuoteException;

try
{
    $quotes = new CorreiosQuote();

    $quotes->setOriginZipcode('14940-000');
    $quotes->setDestinyZipcode('14900-000');
    $quotes->setWeight(2);
    $quotes->setWidth(15);
    $quotes->setHeight(10);
    $quotes->setLength(16);
    $quotes->setServicesCodes(['4014', '4510']);
    $quotes->setFormat('caixa');

    // Métodos opcionais
    $quotes->setCompanyCode('00000000'); // Código da empresa
    $quotes->setPassword('00000000'); // Senha webserivce
    $quotes->setDiameter(0);
    $quotes->setMaoPropria(true);
    $quotes->setValorDeclarado(12.0);

    echo '<pre>' . json_encode($quotes->get(), true) . '</pre>';

} catch ( CorreiosQuoteException $e )
{
    echo $e->getMessage();
}

[
    {
        "price": 29.2,
        "delivery_days": 2,
        "estimate_delivery_date": "2017-08-15",
        "code": 4014,
        "weight": 2,
        "service": {
            "name": "sedex",
            "optional_name": "Sedex"
        }
    },
    {
        "price": 25.8,
        "delivery_days": 5,
        "estimate_delivery_date": "2017-08-18",
        "code": 4510,
        "weight": 2,
        "service": {
            "name": "pac",
            "optional_name": "PAC"
        }
    }
]

use BUBB\Correios\CorreiosTracking;
use BUBB\Correios\Exceptions\CorreiosTrackingException;

try
{
    $tracking = new CorreiosTracking('PO548836895BR');
    echo '<pre>' . json_encode($tracking->get(), true) . '</pre>';

} catch ( CorreiosTrackingException $e )
{
    echo $e->getMessage();
}

{
    "code": "PO548836895BR",
    "last_timestamp": 1502126880,
    "last_status": "Em trânsito para CTCE RIBEIRAO PRETO - RIBEIRAO PRETO/SP",
    "last_date": "2017-08-07 14:28",
    "last_locale": null,
    "delivered": false,
    "delivered_at": null,
    "tracking": [
        {
            "timestamp": 1502126880,
            "date": "2017-08-07 14:28",
            "place": "CTE VILA MARIA - SAO PAULO/SP Objeto encaminhado",
            "status": "Em trânsito para CTCE RIBEIRAO PRETO - RIBEIRAO PRETO/SP",
            "forwarded": null,
            "delivered": false
        },
        {
            "timestamp": 1502109900,
            "date": "2017-08-07 09:45",
            "place": "AGF JARDIM MARILIA - SAO PAULO/SP Objeto encaminhado",
            "status": "Em trânsito para CTE VILA MARIA - SAO PAULO/SP",
            "forwarded": null,
            "delivered": false
        },
        {
            "timestamp": 1501868640,
            "date": "2017-08-04 14:44",
            "place": "AGF JARDIM MARILIA - SAO PAULO/SP",
            "status": "Objeto postado",
            "forwarded": null,
            "delivered": false
        }
    ]
}