IssuedAtChecker example

// Verify the headers             $headerCheckerManager = new Checker\HeaderCheckerManager([
                new Checker\AlgorithmChecker([$this->signatureAlgorithm->name()]),
            ], [
                new JWSTokenSupport(),
            ]);
            // if this check fails, an InvalidHeaderException is thrown             $headerCheckerManager->check($jws, 0);

            // Verify the claims             $checkers = [
                new Checker\IssuedAtChecker(0, false, $this->clock),
                new Checker\NotBeforeChecker(0, false, $this->clock),
                new Checker\ExpirationTimeChecker(0, false, $this->clock),
                new Checker\AudienceChecker($this->audience),
                new Checker\IssuerChecker($this->issuers),
            ];
            $claimCheckerManager = new ClaimCheckerManager($checkers);
            // if this check fails, an InvalidClaimException is thrown             $claimCheckerManager->check($claims);

            if (empty($claims[$this->claim])) {
                throw new MissingClaimException(sprintf('"%s" claim not found.', $this->claim));
            }