CsrfToken getToken(string $tokenId)

Returns a CSRF token for the given ID.

If previously no token existed for the given ID, a new token is generated. Otherwise the existing token is returned (with the same value, not the same instance).

Parameters

string

$tokenId

The token ID. You may choose an arbitrary value for the ID

Return Value

CsrfToken

The CSRF token

CsrfToken refreshToken(string $tokenId)

Generates a new token value for the given ID.

This method will generate a new token for the given token ID, independent of whether a token value previously existed or not. It can be used to enforce once-only tokens in environments with high security needs.

Parameters

string

$tokenId

The token ID. You may choose an arbitrary value for the ID

Return Value

CsrfToken

The CSRF token

string|null removeToken(string $tokenId)

Invalidates the CSRF token with the given ID, if one exists.

Parameters

string

$tokenId

The token ID

Return Value

string|null

Returns the removed token value if one existed, NULL otherwise

bool isTokenValid(CsrfToken $token)

Returns whether the given CSRF token is valid.

Parameters

CsrfToken

$token

Return Value

bool	Returns true if the token is valid, false otherwise