Crosscutting conserns

app.php

<?php

public function createNewUser($newUsername)
{
	$start = time(); // load time calculation
	if (!$this->isGranted('ROLE_ADMIN')) // access control
	{ // access control
		throw new AccessDeniedException(); // access control
	} // access control

	$this->logger->info("Creating new user {$newUsername}"); // logging

	$user = new User();
	$user->setName($newUsername);

	$this->entityManager->persist($user);
	$this->entityManager->flush();

	$this->logger->info("User {$newUsername} was created"); // logging
	$totalTime = time() - $start; // load time calculation
	header("X-Create-User-Total-Time: $totalTime sec"); // load time calculation
}