componser.json

{
    "name": "jaytaph/sec",
    "require": {
        "symfony/security": "2.5.x"
    },
    "autoload" : {
        "psr-0" : { "Noxlogic" : "vendor" }
    },
    "authors": [
        {
            "name": "Joshua Thijssen",
            "email": "jthijssen@noxlogic.nl"
        }
    ]
}

index.php

<?php

require_once "../vendor/autoload.php";

// Initialize authentication part
$providers = array();
$providers[] = new stdClass(); // Dummy provider. The manager does not accept empty arrays
$authenticationManager = new AuthenticationProviderManager($providers);

// Initialize authorization part
$voters = array();
$voters[] = new RoleVoter(); // The role-voter allows us to match against ROLE_* 
$accessDecisionManager = new AccessDecisionManager($voters, AccessDecisionManager::STRATEGY_AFFIRMATIVE);

// Tie everything together in the security context
$securityContext = new SecurityContext(
    $authenticationManager,
    $accessDecisionManager
);

// Create a token with my username, password, a dummy provider key (not used), and the roles for this user
$token = new UsernamePasswordToken("jaytaph", "my_secret_password", "dummykey", array('ROLE_ADMIN', 'ROLE_USER'));
$securityContext->setToken($token);

// Does the user have the ROLE_ADMIN?
if ($securityContext->isGranted('ROLE_ADMIN')) {
    print "<strong>We have the admin role!</strong>";
}
// Does the user have the ROLE_EDITOR?
if ($securityContext->isGranted('ROLE_EDITOR')) {
    print "<strong>We have the admin role!</strong>";
} else {
    print "<strong>No editor role for us</strong>";
}

// Display the content of the token 
print "<pre>";
print_r($securityContext->getToken());