symfony/security-core

Symfony Security Component - Core Library

PHP

1,878

2,725 commits

updated Oct 14, 2026

See the code

README

Security Component - Core

Security provides an infrastructure for sophisticated authorization systems, which makes it possible to easily separate the actual authorization logic from so called user providers that hold the users credentials.

Getting Started

composer require symfony/security-core
use Symfony\Component\Security\Core\Authentication\AuthenticationTrustResolver;
use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
use Symfony\Component\Security\Core\Authorization\AccessDecisionManager;
use Symfony\Component\Security\Core\Authorization\Voter\AuthenticatedVoter;
use Symfony\Component\Security\Core\Authorization\Voter\RoleVoter;
use Symfony\Component\Security\Core\Authorization\Voter\RoleHierarchyVoter;
use Symfony\Component\Security\Core\Exception\AccessDeniedException;
use Symfony\Component\Security\Core\Role\RoleHierarchy;

$accessDecisionManager = new AccessDecisionManager([
    new AuthenticatedVoter(new AuthenticationTrustResolver()),
    new RoleVoter(),
    new RoleHierarchyVoter(new RoleHierarchy([
        'ROLE_ADMIN' => ['ROLE_USER'],
    ]))
]);

$user = new \App\Entity\User(...);
$token = new UsernamePasswordToken($user, 'main', $user->getRoles());

if (!$accessDecisionManager->decide($token, ['ROLE_ADMIN'])) {
    throw new AccessDeniedException();
}

The Security component for Symfony 8.1 is backed by SymfonyCasts.

Learn Symfony faster by watching real projects being built and actively coding along with them. SymfonyCasts bridges that learning gap, bringing you video tutorials and coding challenges. Code on!

Help Symfony by sponsoring its development!

Resources

component
php
symfony
symfony-component

symfony/security-core

Symfony Security Component - Core Library

PHP

1,878

2,725 commits

updated Oct 14, 2026

See the code

README

Security Component - Core

Security provides an infrastructure for sophisticated authorization systems, which makes it possible to easily separate the actual authorization logic from so called user providers that hold the users credentials.

Getting Started

composer require symfony/security-core
use Symfony\Component\Security\Core\Authentication\AuthenticationTrustResolver;
use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
use Symfony\Component\Security\Core\Authorization\AccessDecisionManager;
use Symfony\Component\Security\Core\Authorization\Voter\AuthenticatedVoter;
use Symfony\Component\Security\Core\Authorization\Voter\RoleVoter;
use Symfony\Component\Security\Core\Authorization\Voter\RoleHierarchyVoter;
use Symfony\Component\Security\Core\Exception\AccessDeniedException;
use Symfony\Component\Security\Core\Role\RoleHierarchy;

$accessDecisionManager = new AccessDecisionManager([
    new AuthenticatedVoter(new AuthenticationTrustResolver()),
    new RoleVoter(),
    new RoleHierarchyVoter(new RoleHierarchy([
        'ROLE_ADMIN' => ['ROLE_USER'],
    ]))
]);

$user = new \App\Entity\User(...);
$token = new UsernamePasswordToken($user, 'main', $user->getRoles());

if (!$accessDecisionManager->decide($token, ['ROLE_ADMIN'])) {
    throw new AccessDeniedException();
}

The Security component for Symfony 8.1 is backed by SymfonyCasts.

Learn Symfony faster by watching real projects being built and actively coding along with them. SymfonyCasts bridges that learning gap, bringing you video tutorials and coding challenges. Code on!

Help Symfony by sponsoring its development!

Resources

component
php
symfony
symfony-component

Project health

Overall

4.5/10

Maintained

10/10

Code review

0/10
OpenSSF Scorecard

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