Online PHP editor | perf for hT0vu

<?php final class CsrfToken { private $value; public function __construct() { $this->value = bin2hex(random_bytes(32)); $this->createdTime = time(); } public function getCreatedTime(): int { return $this->createdTime; } public function equals($other) { return hash_equals($this->value, (string)$other); } public function __toString() { return $this->value; } } interface CsrfTokenStore { function getCsrfToken(bool $invalidate = false): CsrfToken; } class Session implements CsrfTokenStore { private $csrfTokenLifetime; public function __construct($csrfTokenLifetime = 300) // your basic session wrapper class { $this->csrfTokenLifetime = $csrfTokenLifetime; session_start(); } private function isTokenValid(?CsrfToken $token): bool { return $token instanceof CsrfToken && time() < $token->getCreatedTime() + $this->csrfTokenLifetime; } public function getCsrfToken(bool $invalidate = false): CsrfToken { if (!$this->isTokenValid($_SESSION['csrf_token'] ?? null)) { $_SESSION['csrf_token'] = new CsrfToken(); } $token = $_SESSION['csrf_token']; if ($invalidate) { unset($_SESSION['csrf_token']); } return $token; } } /* to output the token, pass a CsrfTokenStore to the template: <input name="csrftoken" type="hidden" id="csrf_token" value="<?= $tokenStore->getCsrfToken(); ?>"> to verify the token, pass a CsrfTokenStore to the controller - clear the token and generate a new one for this page load if (!$tokenStore->getCsrfToken(true)->equals($_GET['csrf_token'])) throw new Exception(); */

Version	System time (s)	User time (s)	Memory (MiB)
7.3.1	0.005	0.011	16.42
7.3.0	0.006	0.007	16.61
7.2.13	0.003	0.010	16.77
7.2.12	0.005	0.009	16.63
7.2.11	0.008	0.005	16.48
7.2.10	0.006	0.008	16.58
7.2.9	0.009	0.006	16.45
7.2.8	0.006	0.009	16.60
7.2.7	0.005	0.009	16.66
7.2.6	0.006	0.008	16.70
7.2.5	0.005	0.009	16.64
7.2.4	0.009	0.006	16.62
7.2.3	0.008	0.007	16.68
7.2.2	0.004	0.009	16.66
7.2.1	0.010	0.003	16.71
7.2.0	0.007	0.006	16.62
7.1.25	0.006	0.008	15.57
7.1.23	0.010	0.006	15.40
7.1.22	0.000	0.013	15.29
7.1.21	0.010	0.003	15.29
7.1.20	0.008	0.004	15.61
7.1.19	0.010	0.003	15.35
7.1.18	0.006	0.009	15.43
7.1.17	0.003	0.010	15.54
7.1.16	0.011	0.003	15.51
7.1.15	0.007	0.004	15.48
7.1.14	0.009	0.003	15.57
7.1.13	0.006	0.008	15.46
7.1.12	0.009	0.003	15.36
7.1.11	0.000	0.012	15.24
7.1.10	0.006	0.006	15.57
7.1.9	0.007	0.004	15.39
7.1.8	0.005	0.005	15.55
7.1.7	0.011	0.003	15.50
7.1.6	0.013	0.016	33.45
7.1.5	0.027	0.007	33.14
7.1.4	0.026	0.013	33.25
7.1.3	0.019	0.013	33.46
7.1.2	0.021	0.020	33.41
7.1.1	0.014	0.000	15.60
7.1.0	0.007	0.009	15.25
5.6.38	0.010	0.007	13.50