Online PHP editor | output for K7K7p

<?php class ModulePermission { const OBSERVER = 1; const COACHING = 2; public function isAllowed($permissions, $module) { return ($permissions & $module) === $module } public function allow($permissions, $module) { return $permissions | $module; } public function revoke($permissions, $module) { return $permissions ^ $module; } } $modulePermission = new ModulePermission(); $userPermission = 0; $userPermission = $modulePermission->allow($userPermission, ModulePermission::OBSERVER); $userPermission = $modulePermission->allow($userPermission, ModulePermission::COACHING); var_dump($modulePermission->isAllowed($userPermission, ModulePermission::OBSERVER));