composer.json

{
    "name": "my/example",
    "require": {
        "spomky-labs/jose-service": "~0.0.6"
    },
    "authors": [
        {
            "name": "John Smith",
            "email": "john@example.com"
        }
    ]
}

example.php

<?php

include_once __DIR__.'/vendor/autoload.php';

use SpomkyLabs\Service\Jose;
use Jose\JWSInterface;
use Jose\JWEInterface;

/******************/
/*   INPUT DATA   */
/******************/

//My shared key. This is a direct key
$shared_key = [
    'kty' => 'dir',
    'dir' => 'saH0gFSP4XM_tAP_a5rU9ooHbltwLiJpL4LLLnrqQPw',
];

//The JWE
$jwe = 'eyJhbGciOiJkaXIiLCJlbmMiOiJBMjU2R0NNIiwia2lkIjoiTXkgU2hhcmVkIEtleSJ9..gqkq-9muWfQd3AHD.kg_fCtrkId7poGRCUP9ARO4KQ4m0R6lU5rwNS8Mm8nLFMy_X3nBC1VkL_zDehO4K6eEliZ9ISBEE7fFM6aFppfTCwFd_q-qikoOy7zsSeOOEawDZX2qMMdZYnaZs1HZTezdgS7HmoNK1J1TfE1PNrmhjrIZEbTANWw.Hxy5fTBX8X10_bz5UuDeBQ';


/******************/
/* INITIALIZATION */
/******************/

//We get an instance of our Jose service
$jose = Jose::getInstance();

//We set the configuration
$jose->getConfiguration()->set('algorithms', ['A256GCM', 'dir']);
$jose->getConfiguration()->set('audience', 'My service');

//We add our shared key to the keyset manager
$jose->getKeysetManager()->loadKeyFromValues('My Shared Key', $shared_key);


/******************/
/*    LOADING     */
/******************/

//We try to load the JWE
$loaded = $jose->load($jwe);


/******************/
/*     RESULT     */
/******************/

if (false === $loaded) {
    print_r("We can not load the input...\n");
} elseif($loaded instanceof JWSInterface) {
    //Following methods are available
    $loaded->getProtectedHeader();
    $loaded->getUnprotectedHeader();
    $loaded->getProtectedHeaderValue($key);
    $loaded->getUnprotectedHeaderValue($key);
    $loaded->getHeaderValue($key);
    $loaded->getHeaderOrPayloadValue($key);
    $loaded->getPayload();
    $loaded->getPayloadValue($key);
    $loaded->getType();
    $loaded->getContentType();
    $loaded->getIssuer();
    $loaded->getSubject();
    $loaded->getAudience();
    $loaded->getExpirationTime();
    $loaded->getNotBefore();
    $loaded->getIssuedAt();
    $loaded->getJWTID();
    $loaded->getAlgorithm();
    $loaded->getJWKUrl();
    $loaded->getJWK();
    $loaded->getKeyID();
    $loaded->getX509Url();
    $loaded->getX509CertificateChain();
    $loaded->getX509CertificateSha1Thumbprint();
    $loaded->getX509CertificateSha256Thumbprint();
    $loaded->getCritical();
} elseif($loaded instanceof JWEInterface) {
    //Same as JWSInterface +
    $loaded->getZip();
    $loaded->getEncryptionAlgorithm();
} else {
    print_r("???...\n");
}